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H1B Visa Case Receipt Number, Petition Number – IOE, EAC, WAC – Meaning?

USCIS accepts various kinds of H1B petitions, such as new H1B cap-subject petitions, petitions for H1B extensions, H1B petitions for the transfer of companies, and H1B cap-exempt petitions. One thing is common: they all receive an H1B Receipt Notice from USCIS indicating they received the H1B petition.

When you look at the USCIS-issued Receipt notice for the H1B petition, it would have a receipt number or case number. This number can be used to track the petition’s status with USCIS.

If you are new to the process, looking at the long number and guessing what that number means can be puzzling. In this article, we will cover what the H1B Case Receipt Number or Petition Number indicates by looking at each of the letters in the H1B Case Number.

As a background, if you are a first-time H1B applicant, you will need to go through the H1B Visa registration Lottery process, and only if you are selected in the H1B lottery, then you would be eligible to file an H1B petition with USCIS. Also, the H1B petition can only be filed by a Company. As an applicant, you cannot file the H1B petition alone.

What is the H1B Visa Case Number? Petition Number?

USCIS sends a “Form I-797C, Notice of Action” after they receive the H1B Petition. This form is called the H1B Receipt Notice. It is a generic form used to notify the receipt of a petition or application, but the Class requested field indicates whether it is a receipt notice for an H1B petition or not.

As part of sending the H1B receipt notice, USCIS assigns a unique case receipt number for every H1B petition they receive. The receipt number consists of 13-digit alphanumeric characters and typically starts with three alphabets, like WAC or EAC, based on where it was filed.

This 13-digit alphanumeric number is called the H1B receipt or H1B Petition Number. It appears at the top of the H1B Receipt Notice (Form I-797C, Notice of Action), as shown in the screenshot below.

H1B Receipt Number on USCIS Receipt Notice
H1B Receipt Number on USCIS Receipt Notice

H1B Petition Number vs. Receipt Number

People sometimes use the term “H1B Petition Number” and ask for the “H1B receipt number”. This can be confusing if you are new to it. The “H1B Petition Number” and the “H1B Receipt Number” or “H1B Case Receipt Number” mean the same thing and are often used interchangeably.

On some websites, you may be asked to fill out the H1B Petition Number; in some cases, you may be asked to enter the H1B receipt number or USCIS H1B Case number. In all these cases, you would use the same 13-dight alphanumeric number on the H1B receipt or approval notice. If you are filling out the H1B Visa Stamping application, you will asked to fill out the Petition Number, which is nothing but the H1B Case Receipt Number.

Understanding the H1B Case Receipt Number, Petition Number

Of the 13-digit alphanumeric characters that are part of the H1B Case Receipt Number or Petition Number, each set of characters has a specific meaning. We need to break them out properly to understand them correctly.

We should break down the H1B Case Number into sets of characters grouped like below:

  • XXX—XX—XXX—XXXXX
  • EAC—24—128—50345 ( example for H1B FY 2025 filed petition)

Now, let’s look at each of the groups of characters.

First 3 Letters of H1B Case Number: EAC, WAC, LIN, IOE, SRC

The first three characters indicate where the H1B petition was filed.

  • EAC – Vermont Service Center (old name: Eastern Adjudication Center).
  • WAC – California Service Center (old name: Western Adjudication Center).
  • LIN – Nebraska Service Center (LIN refers to Lincoln, Nebraska).
  • SRC – Texas Service Center (old name: Southern Regional Center).
  • IOE – IOE stands for Integrate Operation Environment(where the petition was processed); it is not a service center location but indicates that the petition was filed electronically or electronically scanned and processed. In the H1B petition context, it was scanned at a shared service center and then processed. The service center details will be at the bottom of the receipt notice.

Following 2 Letters of H1B Case Number: Year of filing

The following two digits indicate the year when it was filed. It is not the fiscal year but rather the calendar year when the petition was filed. Do not try to read something that says WAC2023XXXX to think it is related to the year 2023, you should only look at the following two letters after the first three characters.

  • For the H1B Visa FY 2024 season, it would be 23
  • For the H1B Visa FY 2025 season, it would be 24

Subsequent 3 Letters of H1B Case Number – Computer Working Day

The next three digits indicate the computer working day of the USCIS fiscal year that starts from October 1st. It indicates the computer workday does not include weekends and holidays. USCIS computers do not work on weekends and USA National holidays :-).

October 1st is when the fiscal year starts for USCIS. If your H1B was filed on October 1st, it would be 001. It is a little tricky with this number; computer workday indicates only working days and not weekends.

For example, if it is October 20th, it would be the 16th working day or something like that…For April 12th, it would be 134 as the weekends and federal holidays are taken out. You can use websites like TimeAndDate to compute that number.

  • For April 8th, it would be 128.

Subsequent 5 Letters of H1B Case Number – Actual Case Number

The following five digits is the actual case number and is assigned based on some internal USCIS logic. There is no guarantee that it would start with 0001 and go in sequence. Sometimes, it may start with 5; sometimes, it may be with other digits as well.

  • One sample number would be 51244

Below is a nice visual explaining the H1B Receipt Number format. It is the same as any other USCIS Receipt Number format.

USCIS Case Number Format - What they mean
USCIS Case Number Format – What they mean

How to Check the H1B Case Status on USCIS.gov?

After you receive your H1B Visa Receipt case number, all you would have to do is to track the status on USCIS website. Read How to Check H1B Petition Status on USCIS website.

Premium Processing for H1B :

If you were to file H1B visa petition under premium processing, you would have received the case number and a confirmation email that your petition was received by USCIS and it is under processing. Usually your attorney or your employer would get that information. Once your case is approved, similar email with approval status would be updated via email.  A hard copy would be emailed after the emails to the address specified in petition.

Regular Processing for H1B:

If you were to file your H1B visa petition under regular processing, you would not necessarily get an email from USCIS, rather you would get a hard copy receipt mailed to your employer or attorney.  Also, decision information would be mailed to your attorney or employer after the decision.

You can read Steps after H1B Lottery – Flow Chart to know more on the next steps

Did I miss anything?  Any other thoughts to add?

   

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Author
Satheesh Kumar Ilu
Satheesh Kumar Ilu, commonly known as Kumar, is the founder of RedBus2US.com. He is an Immigration and Study Abroad expert. He holds an MS from the University of Houston–Clear Lake and an MBA from the University of Wisconsin–Milwaukee. He studied, lived, and worked in the U.S. and Singapore for nearly two decades, and has traveled to over 25 countries.

3,682 Comments

  1. Plz answer my query.I received an email from my employer that I am not selected in the lottery. They have received this letter from uscis, but they have not received package yet.uscis is sending letters also????does any one have this information??

    Reply
  2. My employer told me that the check has been cleared on 23rd April, I have not received receipt number yet. 🙁

    Reply
    • You need to wait. if check is en-cashed, then that ideally means selected in lottery. sometime it takes time for the receipt number to come to employer/attorney

      Reply
    • Hi ,

      Few days back i posted some information on this website. One of the receipt numbers WAC1313750098, was returned to the USCIS as the post office was unable to deliver the receipt. 137 is 18th April. Ask your employer to call the USCIS and also ask your Lawyer to verify if the address was filled in properly. Who knows, this receipt may be yours!
      All the best.

      Reply
  3. Anyone from Infy got receipt number updated in AIMS today ? Not sure what is taking them soo long to communicate the receipt number.

    Reply
  4. Lot of people have asked how soon one can appear for stamping. The official language used to be on VFS site, which has since been taken down. Here is another official source that I have located.

    In short, one can appear for stamping at most 90 days prior to H-1 start date and can enter at most 10 days prior to H-1 start date.

    “Posts are authorized to accept H visa petitions and issue visas to qualified applicants up to 90 days in advance of applicants’ beginning of employment status. Post must inform applicants verbally and in writing that they can only use the visa to apply for admission to the United States starting ten days prior to the beginning of the approved status period. In addition, such visas must be annotated, “Not valid until (ten days prior to the petition validity date.)””

    Reply
    • Saurabh. Please clarify. Should it be exactly 90 days ? Or can we consider the same as 3 months in advance ? Will July 1st do. ?

      Reply
      • Facts4life,
        90 days -> July 3
        92 days -> July 1

        Although people loosely use July 1 as 90 days is often treated as 3 months, but to be on the safe side its better to attend w/ 90 day calculation.

        Reply
        • Thank you. I already booked my appointment slots.
          Ofc appointment is on 2nd July and consular appointment is on 3rd July.
          Is that safe?
          Thank you Saurabh.

          Reply
  5. Hi All,

    I got my my receipt number 2 days back but there is a typo in my Company name,i mean there is one extra letter added to my company name.
    Will USCIS reject my petition?
    Plz relpy….

    Reply
      • same here. I checked with my attorney and she said that they are still receiving receipts AND returned packages. They did not receive anything for me. I have a tiny viny hope to get the receipt.

        Reply
        • Me too. I checked with my attorney yesterday they said out 20 applications, 18 got receipts, 1 got rejected and mine – no information, cash didnt encashed till May 10th.
          So very worried. My OPt ends on June 2nd. Looking to enroll for second degree and work for 20 hrs.

          This is very bad, but hoping for the best!

          Reply
  6. AIMS updated to ‘Acknowledgment notice received from USCIS’ dated to 23-APR.

    WAC13141Xxxxx
    Case Status: Initial Review

    All the best guys…lets hope for the best in coming days….

    Reply
  7. Are there any Premium Processing applicants who received the receipt after 2nd week of MAY
    or if you are aware of any ?

    Thanks

    Reply
  8. Hello Everyone,
    I got a mailer saying my petition got selected in the lottery but when I contacted the concern team for the receipt number they said that they cant share it with the employees.

    Is there any way to find the receipt number from outside??

    Kindly reply to this post if you know how to find it externally..

    Thanks in Advance!!

    Reply
  9. Hi,

    I have been calling the GI team a couple of times and they keep saying that they dont have any information yet. Do you think i still have time to wait or there is no point keeping up hopes.

    Reply
  10. I have recieved my EAC number. My status on USCIS website shows as “Post Decision Activity” . But my friend’s status is still in Initial status. Is there something that I have to worry about? or am I lucky that it has got processed quickly? Whats the next step for me?

    Please advice.

    Reply
          • Did you call the GI team prior to getting your receipt number updated on AIMS. If so when did you call them and what was their response.

          • Yes, I had called last week. 1st time I called, they said they don’t know and AIMS would be updated in next 2 days. The next day when I called them, they confirmed that my petition was selected and they had also sent a mail confirmation of the service request.

    • H1B Infy 84,
      Appear for visa stamping. I assume you are w/ Infy. So check w/ your immigration team on how they process it and they would prefer to control the stamping dates etc.

      Reply
  11. Hi all,

    I still haven’t heard back any updates about my case and I am starting to look at alternate options. I am on OPT currently and it expires in June. I work for a global company and I was wondering how transfers across countries within the same company work? I started my job in US and have never worked at the Indian branch.

    Reply
    • Hi Patience,

      I have the same issue. However, my OPT expires towards the end of this year. I’m now looking into international transfer since my employer is global as well. How this will work, at least for me, is I’ll be localized to wherever I’m hired and paid according to that particular location. After a year, your employer can apply for an L1 visa for you, or H1 for the next year. Does this help?

      Reply
      • thanks for your reply. I am just concerned about the massive change in pay! I am not in IT so I don’t know if they will even have a position for me in India.

        Reply
  12. AD/RP/CSC. Got approval, H1B valid until Sept 2016.

    Notice Date: April 15, 2013
    Approval Date: May 13, 2013

    Reply
  13. Hello Everyone,

    My petition got selected in lottery, few minutes ago I received the communication from employer. Yet to receive my receipt number.

    Reply
  14. Hello Everyone,

    My petition got selected in lottery, few minutes ago I received the communication from employer.Yet to receive my receipt number.

    Reply
  15. Friends

    Finally my H1B got approved today a tough journey with huge RFE came to and end. Mine is Premium Processing

    My tension days are here :-

    April 1 :- Petition Reached USCIS.
    April 10 :- Got selected in Lottery and receipt generated .
    April 16 :- Shock with a big questions on RFE. ( Client agreement, Employer tax statements , Employer previous years h1b records, My role in USA for client , Why I am choosed for the position with proof on my skills set for the role matching).

    Thanks to my employer for working in detail on this huge list of RFE.

    May 9 :- My employer replied to RFE and PP clock restared
    May 14 :- Woke up and saw case status happy to see my status shows approved.

    My special thanks to Redbus this site was much useful. Thanks rishi , Honeyb and all others who replied to my questions frequently.

    Friends my suggestion is its really worth to opt for Premium processing so that u will get ur results soon.

    50% of journey completed, now start preparing for stamping hope all will go well.

    Thanks once again if any help need please reply. I wish all to get there approval notice soon.

    Reply
  16. Hi my petition is in post descision activity
    WAC1313251444
    but not yet recieved any mail from them.SO i think i am done with all right ????

    Reply
      • No updates on my AIMS till now. Not sure why it is taking soo much time – when GI team says already selected, why are they not sharing receipt number ?

        Reply
          • call gi or raise service desk ticket. i did raise one and got my receipt number in ticket resolution mail.

          • Any clue if they are still expecting any selections.. I havnt received any information about my status yet. They saying they dont hav any information about me.. does tht mean I am not selected ?

          • i have called GI team three times till now. First time – we do not know your status. 2nd time – congrats you are selected but no receipt number, 3rd time – you are selected but aims will be updated later, and still no receipt number.

            And all this happened within a span of few days. so guys do not lose hope..everyday the status keeps changing.

            You can be 100% sure only when you get receipt number in AIMS.

          • Thanks all.. I called the GI team now.. they asked me to wait till they recieve ny info.. getting too tensed nd freaked out day by day..

    • AIMS got updated for me today….’Acknowledgment notice received from USCIS’ dated 23-APR

      Reply
  17. I called USCIS today and after waiting for an hour, he checked my status in the system. I was not on the “system”, not sure what exactly it means. So, i asked if it means i am not selected in lottery and the answer was no it does not mean that. He said by 15th may your petitioner would either get the receipt or the package returned. Not sure if he meant that receipt would be generated till 15th or not.

    If someone else also got a similar reply, please share the same

    Reply
    • Sahil

      What number did u call ?

      And how did they identify you? Through your passport number ?

      Please reply I also want to contact the uscis

      Reply
    • 1-800-375-5283. They asked me for

      Last name
      First name
      Date of Birth
      Company name

      Also the IVR prompted me for the EIN(employee identification number) before i could talk to the representative.

      Hope it helps and share your experience

      Reply
    • Yes I called USCIS. They said they are not able to tell whther selected or rejected they said I can get to know from my employer or checking with the bank if chk is cleared and they will keep sending receipts till visa quota is exhausted then only rejection packets will b sent

      Reply
  18. My h1b got approved on 30th April as per status for my receipt number. Employer had applied in PP. Attorney has not yet received any Email communication on approval.
    How long would it take to receive the documentation?

    Reply
  19. Did any body receive RFE on H1B?

    My status changed to RFE on May 7th but didn’t receive the RFE document from USCIS so far.

    How many days it usually takes..Is it a concern if I don’t receive the document in next 1-2 days

    Reply
  20. Hi Guys,

    I have been following this website since mid March and this website has provided me a lot of info. We had applied for a H1B for my wife.
    Going through the case status tool, i found a peculiar status and wanted to share it with you guys. Hope it would help someone.

    Receipt Number : – WAC1313750098

    On May 9, 2013, the post office returned your document I129, PETITION FOR A NONIMMIGRANT WORKER as undeliverable. If you do not contact us at 1-800-375-5283 within 180 days from May 9, 2013, this document will be destroyed and you will need to file a new application with fee.

    I believe this receipt was for a fresh H1 Visa and as per the receipt it should have been generated on 4/18. Please check with your attorney and ask them to give call the USCIS.

    Hope this helps someone. I noticed this because my wife’s petition number is nearby this number.

    Reply
    • @Vamsi: This means that your employer’s/attorney’s address mentioned in the H1 application is incorrect and thus the documents send by USCIS were returned back to them.
      I suggest to contact your employer ASAP and ask them to provide correct address to USCIS.

      Reply
      • FYI… I already have a H1 and i was checking for my wife’s H1B status. The receipt number i mentioned is something i stumbled upon. I thought it would be better to report this, so that in case someone’s check was encashed, but s/he didn’t receive the receipt, they can check if the receipt is theirs by calling the USCIS.

        Anyway, thanks for your reply… point is how will i or anyone else know whom the receipt belongs to, no one except USCIS can tell whom the receipt belongs to.

        Reply
    • damn! that sucks!
      Good luck for the future.

      I have given up hope as well. Just waiting for my lawyer to give me the bad news 🙁
      (Advanced degree/Regular processing)

      Reply
    • Hello Sai,

      Sorry to hear that, maybe there is something better in store for you.. Just want to wish you good luck for future!!

      Reply
  21. Hi All,

    On 23rd Apr my check got cleared and on 11th May my employer got the receipt from the attorney.Today i got my receipt number.

    Receipt number:EAC-13-140-*****
    Recieved Date:Apr 8
    Notice Date:Apr 19
    All d best guys who r still waiting for their receipt!!

    Reply
  22. Hi ,

    My petition was submitted to USCIS on 25th of Feb 2013,but still I dint receive any status.
    I asked concern team but dint receive any response.

    Just wanted to find out if there is any way from outside.

    Thanks in Advance!!

    Reply
    • No there is no way from “outside”.
      If there was one, thousands of people would not have been waiting to hear back from their lawyers/employers.

      Reply
    • How did you submit the petition on Feb 25th, when USCIS did not accept petitions till April 1st. I think you are missing something. This post is for FY 2014 H1B Visa’s. If your employer told you that they filed in Feb, they fooled you. But before that, did your employer apply for transfer or a fresh 2014 CAP H1B??

      Your question needs to be correct to get an answer.

      Reply
  23. Hi,

    Congrats who got selected in lottery.

    My application(WAC131425XXXX) got selected in lottery but not sure how many day will it take for approve.

    Anyone got update on Regular Quota / Regular Processing / No Advance Degree / Applied from India / California Centre.

    Reply
  24. How Many days it usually takes to receive the RFE document. On May 3rd the status of my cases changed to RFE, but my lawfirm still didn’t receive the letter.

    Also who will usually receive the RFE my Law Firm or the employer.

    I do see my employer’s address on receipt notice.

    Reply
    • Can any one please share their experiences?

      If status changed to RFE today on USCIS portal, with in how many days I can expect the hard copy of notice.

      Reply
  25. Hello Everyone,

    I just got my receipt..My petition was sent on 29th March 2013 and I had almost lost hope. For please who are still waiting for receipt ..just wanted to tell you that receipts are still been sent out…so dont loose hope!

    All the best!

    Reply
    • I changed mine to Premium processing once I got my receipt, did not want to hang in the air and within three days got the decision approved.

      Reply
      • i think USCICS is working on petitions in this order – PP , AD (regular) and then RQ. i dont see any RQ person saying he got RFE or approval though some AD people in RP have mentioned they got RFE.

        Reply
    • This is the most common reason for RFE.

      If you are a fresh graduate out of college and have applied for a job function that does not directly relate to your field of study then USCIS will ask for evidence regarding your eligibility for the position. The chances of rejection in this case are very high

      If you have work experience in the field that you have applied and your degree does not reflect it then your chances of approval are high once your lawyer sends an appropriate response to the RFE.

      Hope this helps

      Reply
      • I have about 2-3 years of work experience.
        a bachelors and masters degree in US. But the Degrees are not related.
        What do you think?

        Reply
        • can you explain further on what you mean degrees are not related?

          Do you mean bachelors and masters degrees not related, or do u mean both your degrees are not related to job description?

          For former case, it does not really matter as long as one of them is related to your job description. For latter case, your lawyer will have to explain your previous experience with current job requirements.

          Reply
  26. Hi Folks,

    I am a silent observer of this blog and I am really thankful to each one of you for the hope & guidence. You guyz rock !!!

    I was very eagerly waiting for my Petition to get selected and I wanted to write here as well. But was waiting for the right time.

    So now I received a call from my employer on Saturday that my H1B petition got approved under PP but they haven’t received the original documentation from USCIS yet.

    I know it means that it got selected in lottery however not sure whether Petition is approved or not?

    What is the difference between getting selected and getting petition approved?

    What are the next steps? I had submit just my docs and none of other docs for my wife and kid. What are the docs required for next step?

    He didn’t disclose the Receipt #. Said he would email everything once he gets all the docs.

    Please help !!!

    Reply
    • Dude, dont you understand the meaning of “approved”, if your petition was not selected in lottery how the hell would it get approved….Do some reading of the articles above before posting some silly questions….Congrats but do your research on what you have applied for and its process……

      Reply
      • Hi abc. Appreciate your response. However if a person doesn’t know about something will ask. Let’s support each other rather than being sircastic or discouraging someone from asking questions. I definitely understand that the petition gets approved only after being selected. No offense !!! But I think I couldn’t explain it correctly.

        I wanted to ask if the employer is calling the employee for the first time and saying that your petition was approved. Earlier didn’t contact saying that it got selected in lottery, so it rings a bell. So is it possible or not? Not sure if I should feel happy or sad.

        Let me know please !!!

        xyz – The answer is no. It was through some other employer. Congrats !!!

        Reply
        • Prasaad,
          From the message it looks approved. Your employer should receive the paper notice within 30 days and that would be the final confirmation of having made through the cap and getting the approval.

          Reply
          • Thanks a lot Saurabh. I appreciate it !!! So now I guess the only piece left is stamping. Also wanted to ask that my wife and myself didn’t register the marriage yet and we have a kid who has a passport. Now my wife already has a B1/B2 visa and her surname is her maiden surname and my daughter’s passport has my wife’s surname as her after marriage surname. What do you recommend on the same:

            1. Should we register the marriage before this stamping?
            2. Should I change my wife’s surname? If yes then she would need to apply for the fresh passport or is there an alternative? Or is it mandatory?
            3. Should we all go together for stamping or should I go individually and then later my wife and kid?

            Also, what documents should we have already before we go for stamping?

            Please help !!!

          • Prasad,
            1. Its better to have marriage certificate. So if you can get that done, go for it.
            2. Not required to change the last name
            3. You all can go together as then most of the questions will be directed towards you and not your dependents. Your child may be eligible for interview waiver program and doesn’t need to appear personally.

    • Hi Prasaad.

      How are you ?

      Have you applied from Maark Overseas ?

      Please confirm. I have applied thru him and got his call also on saturday. waiting for your reply.

      Reply
    • Hi Prasaad

      Have you applied thru Maark Overseas ? I think yes.

      I also got a call on saturday with the same message. please confirm.

      Thanks

      Reply
  27. Called the GI team today. They said USCIS is still sending out results and they are receiving in batches. Asked to wait till next 2 weeks.

    Reply
    • had a discussion with GI team today and they told they are expecting receipts till May end..i am selected but receipt number not updated in AIMS

      Reply
    • Today my DM told me that today they have got a list of names who’s cases got thru and my name is there in that list. However when I called up the GI helpdesk (they are not GI, mind you), they said they are yet to receive any confirmation.

      Posting this as it might bring us all some hope, esp. to people like me who thought there are no chances left anymore…

      Reply
      • Thanks for the info and Congrats!

        Just waiting to hear something from the GI team, no other option 🙁

        Reply
      • Hi

        I am regular follower of this thread. I am AD/PP/EAC candidate applied on April 01,2013. But did not get information yet , no receipts, no SEVIS updated. 🙁 But I am seeing that there is some GI team and AIMS update which allows you to see if you are atleast selected in lottery. Can anybody please explain what these two terms are. I will definitely appreciate your time. I tried to google it, but don’t know what it is in relation to H1B.

        Thanks

        Reply
  28. Can we call USCIS as an applicant ( my company HR is on vacation and the attorney loves to ignore my emails 🙂 ), or is it must for the employer/attorney to call?

    Reply
  29. Finally recieved Approval
    Summary of events:
    Application: PP/RQ/CSC
    Receipt: April 12th
    Initial Review: April 17th
    RFE: April 18th
    Initial Review: April 19th (clocked stopped)
    Initial Review: May 3rd (clock started)
    Decision: May 8th

    Receipt no. Wac13131xxxxx

    This forum was a great place for support throughout the process. Thank you to everyone and all the best.

    Nish

    Reply
  30. Are petitions processed in the order of their receipt numbers? I’m AD/RP/CSC, receipt number WAC131325????, receipt date April 12, still in Initial Review. It sounds like a lot of other ADs already got approval/RFE?

    Reply

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