An Employer Identification Number (EIN), also known as a Federal Tax Identification Number, is used to identify a business entity. Daily limitation of an employer identification number Effective May 21, 2012, to ensure fair and equitable treatment for all taxpayers, the Internal Revenue Service will limit Employer Identification Number (EIN) issuance to one per responsible party per day. This limitation is applicable to all requests for EINs whether online or by fax or mail. We apologize for any inconvenience this may cause. Prior to 2001, the first two digits of an EIN (the EIN prefix) indicated the business was located in a particular geographic area. In 2001, EIN assignment was centralized, although all 10 campuses can assign an EIN, if necessary. As a result of the centralization effort, the EIN prefix no longer has the same significance. The EIN prefix now only indicates which campus assigned the EIN. Each campus has certain prefixes available for use, as well as prefixes that are solely for use by the online application and the Small Business Administration. The prefix breakdown is shown in the table below: Campus/other location Valid EIN prefixes Andover 10, 12 Atlanta 60, 67 Austin 50, 53 Brookhaven 01, 02, 03, 04, 05, 06, 11, 13, 14, 16, 21, 22, 23, 25, 34, 51, 52, 54, 55, 56, 57, 58, 59, 65 Cincinnati 30, 32, 35, 36, 37, 38, 61 Fresno 15, 24 Kansas City 40, 44 Memphis 94, 95 Ogden 80, 90 Philadelphia 33, 39, 41, 42, 43, 46, 48, 62, 63, 64, 66, 68, 71, 72, 73, 74, 75, 76, 77, 85, 86, 87, 88, 91, 92, 93, 98, 99 Internet 20, 26, 27, 45, 46, 47, 81, 82, 83, 84, 85, 86, 87, 88, 92, 93, 99 Small Business Administration (SBA) 31 Related Employer ID numbers Video EIN video
