# Recommendation E.160 (11/1988): Definitions relating to national and international numbering plans

> superseded recommendation/international standard from the International Telecommunication Union

**Wikidata**: [Q27051328](https://www.wikidata.org/wiki/Q27051328)  
**Source**: https://4ort.xyz/entity/recommendation-e-160-11-1988-definitions-relating-to-national-and-international-numbering-plans