N-400 Application for Naturalization
Form N-600 Application for Certificate of Citizenship
Form I-130 Petition for Alien Relative
Form DS-11 US Passport Application Form
Form DS-160 Online Nonimmigrant Visa Electronic Application
I-485 Application to Register Permanent Residence or Adjust Status
Form I-140 Petition for Alien Worker
View AllA list of immigration numbers can be located on numerous websites. All United States Citizenship and Immigration Services phone numbers can be located on their official website. It is recommended when searching for a governmental phone number, such as immigration numbers, to use an official website. However, there are numerous websites that offer a complied list of immigration phone numbers from different countries and jurisdictions. Often times, it may be beneficial to contact a nearby embassy or immigration services office to ask for a hard copy list of phone numbers and other elements of contact information.
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