Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026

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

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 26

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 22

ONVOY, LLC - CA 19

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
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2019-11-12	672-994	not yet reported which blocks →	TELUS Mobility	646F	Abbotsford	—
2019-11-12	672-995	not yet reported which blocks →	TELUS Mobility	646F	Victoria	—
2019-11-12	786-736	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2019-11-12	786-737	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2019-11-12	807-322	not yet reported which blocks →	Bell Mobility	6574	Dryden	—
2019-11-12	873-992	not yet reported which blocks →	TELUS Mobility	646F	Ottawa-Hull	—
2019-11-11	206-572	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	SEATTLE	WA
2019-11-11	249-559	not yet reported which blocks →	Iristel Inc.	154E	Midland	—
2019-11-11	343-686	not yet reported which blocks →	TELUS Integrated Communications	2782	Ottawa-Hull	—
2019-11-11	951-508	0–9 XXXall 10 · 7 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA	7240	CORONA	CA
2019-11-08	213-468	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	LSAN DA 13	CA
2019-11-08	308-270	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KEARNEY	NE
2019-11-08	510-767	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	FRNK MAIN	CA
2019-11-08	579-404	not yet reported which blocks →	Distributel	083E	St-Calixte-de-Kilkenny	—
2019-11-08	579-405	not yet reported which blocks →	Distributel	083E	St-Damase	—
2019-11-08	579-406	not yet reported which blocks →	Distributel	083E	St-Hippolyte	—
2019-11-08	579-407	not yet reported which blocks →	Distributel	083E	St-Lin	—
2019-11-08	579-408	not yet reported which blocks →	Distributel	083E	St-Pie	—
2019-11-08	579-409	not yet reported which blocks →	Distributel	083E	Ste-Anne-des-Plaines	—
2019-11-08	579-410	not yet reported which blocks →	Distributel	083E	Ste-Madeleine	—
2019-11-08	657-409	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SILVERADO	CA
2019-11-08	657-416	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	HUNTITNBCH	CA
2019-11-08	657-430	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SANTA ANA	CA
2019-11-08	878-223	0–9 XXXall 10 · 7 holders which blocks →	CSC WIRELESS, LLC	425J	UNIONTOWN	PA
2019-11-08	954-869	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - FL	8300	FTLAUDERDL	FL
2019-11-07	236-471	not yet reported which blocks →	TELUS	8086	Vancouver	—
2019-11-07	404-383	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - GA	067D	ATLANTA	GA
2019-11-07	509-824	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - WA	006F	SPOKANE	WA
2019-11-07	540-573	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - VA	4644	PULASKI	VA
2019-11-07	579-402	not yet reported which blocks →	Distributel	083E	Actonvale	—
2019-11-07	579-403	not yet reported which blocks →	Distributel	083E	Mirabel-Aeroport	—
2019-11-07	814-738	0–9 XXXall 10 · 4 holders which blocks →	CSC WIRELESS, LLC	425J	ERIE	PA
2019-11-07	814-895	0–9 XXXall 10 · 3 holders which blocks →	CSC WIRELESS, LLC	425J	ALTOONA	PA
2019-11-07	828-616	0–9 XXXall 10 · 5 holders which blocks →	RIVERSTREET COMMUNICATIONS OF NO CAROLINA - NC	769H	BOONE	NC
2019-11-07	910-656	0–9 XXXwhole prefix which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC	7835	FAYETTEVL	NC
2019-11-06	236-513	not yet reported which blocks →	Videotron Ltd.	787G	Vancouver	—
2019-11-06	332-218	0–9 XXXwhole prefix which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	NWYRCYZN01	NY
2019-11-06	509-409	0–9 XXXwhole prefix which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA	7274	QUINCY	WA
2019-11-06	571-537	0–9 XXXwhole prefix which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	HERNDON	VA
2019-11-06	571-539	0–9 XXXall 10 · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	HERNDON	VA
2019-11-06	647-425	not yet reported which blocks →	Videotron Ltd.	787G	Toronto	—
2019-11-06	647-450	not yet reported which blocks →	Videotron Ltd.	787G	Toronto	—
2019-11-06	825-395	not yet reported which blocks →	TELUS	8084	Calgary	—
2019-11-06	873-629	not yet reported which blocks →	Cooptel	818D	St-Germain-de-Grantham	—
2019-11-05	225-433	0–9 XXXall 10 · 4 holders which blocks →	EXIANT COMMUNICATIONS LLC	114J	BATONROUGE	LA
2019-11-05	318-725	0–9 XXXall 10 · 4 holders which blocks →	EXIANT COMMUNICATIONS LLC	114J	SHREVEPORT	LA
2019-11-05	337-270	0–9 XXXall 10 · 2 holders which blocks →	EXIANT COMMUNICATIONS LLC	114J	LAFAYETTE	LA
2019-11-05	431-602	not yet reported which blocks →	MTS Inc.	8088	Brandon	—
2019-11-05	431-603	not yet reported which blocks →	MTS Inc.	8088	Dauphin	—
2019-11-05	431-604	not yet reported which blocks →	MTS Inc.	8088	Melita	—

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.