# Recommendation I.251.7 (11/1988): Number identification supplementary services: Malicious Call Identification (MCID)

> superseded recommendation/international standard from the International Telecommunication Union

**Wikidata**: [Q26985379](https://www.wikidata.org/wiki/Q26985379)  
**Source**: https://4ort.xyz/entity/recommendation-i-251-7-11-1988-number-identification-supplementary-services-malicious-call-identification-mcid-