Signal & Syntax · Numbers and formats

What Is an MSISDN?

MSISDN stands for Mobile Station International Subscriber Directory Number. The MSISDN is a mobile subscription's full phone number in E.164 form.

Also calledMobile Station International Subscriber Directory Number · mobile number

Example

MSISDN 447911123456

MSISDN in Practice

The MSISDN is the number people dial. The IMSI on the SIM identifies the subscription inside the network. The HLR maps one to the other, so calls and SMS reach the right SIM. Porting and SIM replacement change the IMSI behind an MSISDN while the number stays the same.

Where ScoreMachine Fits

score.phone.scoring

phones

Every phone method takes MSISDNs in the phones array, up to 10,000 per request.

Related Terms

IMSI The IMSI (International Mobile Subscriber Identity) is the up-to-15-digit code on a SIM. HLR The HLR (Home Location Register) is the subscriber database in a mobile operator's core network. E.164 E.164 is the ITU-T standard for international phone numbers. MCC and MNC The MCC (mobile country code) names a country in three digits.

Read the Guide

Guide

HLR Lookup vs eHLR

Two ways to check whether a number is in use. Read the guide →

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