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Reporting Body Identifier

The Reporting Body Identifier is the first two digits of a Global System for Mobile Communications (GSM) Type Allocation Code, and indicates the GSMA-approved organization that registered (or, before 2002, approved) a given mobile device, and allocated the model a unique code. {{Cite web |access-date=17 Nov 2025

The numbers are loosely based on the telephone country code (CC) of the organization identified, as most approving nations used a single approval body endorsed by their national GSM Association chapter. However, not all Reporting Body Identifiers follow this tendency.

Reporting Body Identifier codes

According to Permanent Reference Document TS.06 (IMEI Allocation and Approval Process Version 25.0, 01 May 2024 ), Appendix A of the GSM Association, the current Reporting Body Identifier (RBI) codes indicate the following approval/allocation bodies:

CodeGroup/indicationOrigin
00Test IMEINations with 2-digit CCs
02-09Test IMEINations with 3-digit CCs
01CTIA (PTCRB)United States
35TÜV SÜD (BABT)United Kingdom
86TAFChina
98Reserved for Future Use
99Global HexadecimalFor multi RAT 3GPP2/3GPP

Reporting Bodies that no Longer Allocate IMEIs:

CodeGroup/indicationOrigin
10DECT devices
30IridiumUnited States (satellite phones)
33DGPTFrance
35BABTUnited Kingdom
44BABTUnited Kingdom
45NTADenmark
49BZT / BAPTGermany
50BZT ETSGermany
51Cetecom ICTGermany
52CetecomGermany
53TÜVGermany
54Phoenix Test LabGermany
91MSAIIndia

Normally, when a RBI is 35, the phone device supports operation on the 1800 MHz band, but if it is 01, it will not have it, e.g., Motorola and Nokia. There are some exceptions for RBI 01, e.g., on LG and Sony Ericsson.

Reporting Body Identifier vs Regional Code

The "Reporting Body Identifier" is also known as the Regional Code in the CDMA context. The International Mobile Station Equipment Identity (IMEI) and Mobile Equipment Identifier (MEID) structures are superficially the same, except that the first two digits must be decimal for an IMEI, and must be hexadecimal for an MEID. In 3GPP2 terms the GSMA is the Global Decimal Administrator while the Telecommunications Industry Association (TIA) is the Global Hexadecimal Administrator.

References

References

  1. (1 May 2024). "IMEI Allocation and Approval Process". GSM Association.
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