MCC/MNC — Mobile Country Code / Mobile Network Code
What is MCC/MNC?
MCC (Mobile Country Code) and MNC (Mobile Network Code) together uniquely identify a mobile subscriber's country and specific carrier network — for example, which network a phone number is currently registered on. Messaging and voice platforms use MCC/MNC lookups to route traffic correctly, apply the right per-carrier pricing and compliance rules, and detect when a number has ported to a different network since it was last checked.
More detail
An MCC/MNC pair is typically returned by a number lookup (an HLR lookup or a carrier-data API) alongside line type and portability status, not guessed from the number's dialing prefix alone.
MCC/MNC accuracy matters most right after a number ports between carriers — routing on stale carrier data is a common cause of misrouted messages or inflated delivery costs.
Frequently asked
- Is MCC/MNC the same as a phone number's area code?
- No. An area code or country code identifies geography from the number's digits alone. MCC/MNC identifies the actual carrier network the number is currently registered on, which can change when a subscriber ports to a new carrier.
- Why would a platform look up MCC/MNC before sending?
- To route the message or call correctly, apply the destination carrier's pricing and compliance rules, and catch cases where a number has ported to a different network since it was last delivered to.
See also
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