Recent prefix assignments

5 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.

Most active assignees, last 30 days

T-MOBILE USA, INC. 5

New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025

Recent NPA-NXX prefix assignments
NPA-NXX	Assignee	OCN	Rate center	State
760-622	T-MOBILE USA, INC.	6529	OCSD OCSD	CA
760-641	T-MOBILE USA, INC.	6529	PALM SPG	CA
760-644	T-MOBILE USA, INC.	6529	ESCONDIDO	CA
760-801	T-MOBILE USA, INC.	6529	ESCONDIDO	CA
760-802	T-MOBILE USA, INC.	6529	ESCONDIDO	CA
760-809	T-MOBILE USA, INC.	6529	ENCINITAS	CA
760-877	T-MOBILE USA, INC.	6529	ESCONDIDO	CA
760-884	T-MOBILE USA, INC.	6529	ESCONDIDO	CA
760-899	T-MOBILE USA, INC.	6529	INDIO	CA
760-907	T-MOBILE USA, INC.	6529	WARNER SPG	CA
773-209	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-216	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-219	T-MOBILE USA, INC.	6529	CHICGOZN07	IL
773-220	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-263	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-280	T-MOBILE USA, INC.	6529	CHICGOZN06	IL
773-297	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-301	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-312	T-MOBILE USA, INC.	6529	CHICGOZN02	IL
773-317	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-319	T-MOBILE USA, INC.	6529	CHICGOZN10	IL
773-322	T-MOBILE USA, INC.	6529	CHICGOZN07	IL
773-331	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-354	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-368	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-370	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-386	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-392	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-398	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-403	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-406	T-MOBILE USA, INC.	6529	CHICGOZN07	IL
773-407	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-410	T-MOBILE USA, INC.	6529	CHICGOZN02	IL
773-412	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-416	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-418	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-419	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-425	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-430	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-433	T-MOBILE USA, INC.	6529	CHICGOZN02	IL
773-443	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-447	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-454	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-457	T-MOBILE USA, INC.	6529	CHICGOZN07	IL
773-459	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-469	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-491	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
773-495	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-517	T-MOBILE USA, INC.	6529	CHICGOZN01	IL
773-531	T-MOBILE USA, INC.	6529	CHICGOZN03	IL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.