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Other numbers and codes

Access our services online.

Request a manufacturer code

Request a manufacturer code, which is used by the control procedures for Group 3 fax machines (non-standard facilities). The structure of the manufacturer code (or 'terminal provider code') is specified in ITU-T Recommendation T.35. 
Addressing resource,OFCOM,Communication parameters,Numbering,Telecom,Telephony

Request an operator code 

Request an operator code to identify service providers and operators of national and international networks for telephony and data transmission in accordance with ITU-T Recommendation M.1400.
Addressing resource,OFCOM,Communication parameters,Numbering,Telecom,Telephony

Search for more addressing resources

Search for more allocated or available addressing resources (e.g. ADMD, NSAP, manufacturer codes).
Addressing resource,OFCOM,Communication parameters,Numbering,Telecom,Telephony,IIN,ISPC,MNC,NSPC,OID,ADMD,Manufacturer code,ICD,NSAP,PRMD,RDN,T-MNC,Operator code,Tenth of DNIC