MCC / MNC lookup.

MCC (Mobile Country Code) is a three-digit code identifying a country, and MNC (Mobile Network Code) is a two- or three-digit code identifying an operator within that country. Together they are defined by ITU-T Recommendation E.212 and form the PLMN identity that begins every IMSI on a SIM.

The MCC+MNC pair is the leading digits of the IMSI stored on a SIM card, and the network broadcasts it as the PLMN ID. HLR/HNI lookups, roaming agreements and number-portability databases all use it to identify a subscriber's home network.

No. The MNC is two digits in most of the world but three digits in North America (MCC 310–316) and a few other markets. Leading zeros are significant — MNC 02 and MNC 2 are different codes — so always preserve the zero when parsing an IMSI or building a PLMN ID.

A country calling code such as +971 is part of the E.164 dialling plan used to route calls and SMS to a number. The MCC/MNC (E.212) identifies the network a SIM belongs to at the signalling layer. The UAE dials with +971 but its MCC is 424 — the two numbering systems are unrelated.

Operators can hold several MNCs — for legacy 2G/3G/4G cores, acquired brands, or historic per-region allocations. Some countries also retain legacy MCCs (the UAE, for example, has historic codes 430 and 431 alongside the current 424). All valid codes for a network should be treated as that operator.

No. It is a curated, non-exhaustive subset for quick reference and debugging, focused on GCC/MENA plus major global operators. Assignments change over time, so for operational or billing decisions confirm against the official ITU E.212 register or your provider's routing tables.