Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 — NPA 251

WIDE VOICE, LLC - AL 1

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
2010-03-08	251-298	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL	6804	MOBILE	AL
2010-01-13	251-288	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL	6804	MOBILE	AL
2009-12-21	251-286	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	BREWTON	AL
2009-11-12	251-222	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL	6804	MOBILE	AL
2009-05-27	251-284	0–9 XXXall 10 · 4 holders which blocks →	ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC	6916	FOLEY	AL
2009-05-08	251-348	0–9 XXXall 10 · 3 holders which blocks →	AT&T ENTERPRISES, LLC	516C	MOBILE	AL
2009-04-07	251-287	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AL	7221	MOBILE	AL
2009-01-02	251-263	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - AL	604E	MOBILE	AL
2008-11-18	251-290	0–9 XXXall 10 · 4 holders which blocks →	MCC TELEPHONY OF THE SOUTH, LLC - AL	773F	GRAND BAY	AL
2008-10-23	251-201	0–9 XXXall 10 · 4 holders which blocks →	TELEPAK NETWORKS, INC. - AL	947G	FOLEY	AL
2008-09-29	251-285	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	MOBILE	AL
2008-09-26	251-273	0–9 XXXall 10 · 6 holders which blocks →	PAETEC ITEL, LLC	829J	CITRONELLE	AL
2008-05-14	251-289	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - AL	072F	MOBILE	AL
2008-05-05	251-317	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AL	5255	CITRONELLE	AL
2008-05-01	251-279	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - AL	8271	FAIRHOPE	AL
2008-02-07	251-281	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MOBILE	AL
2008-01-31	251-271	0–9 XXXall 10 · 3 holders which blocks →	MCC TELEPHONY OF THE SOUTH, LLC - AL	773F	FOLEY	AL
2007-10-29	251-280	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	BHN IP ENABLED SERVICES, LLC	045L	FLOMATON	AL
2007-09-18	251-321	0XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks →	ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC	6916	ATMORE	AL
2007-06-26	251-725	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	MOBILE	AL
2007-04-24	251-491	not yet reported which blocks →	TELEPAK NETWORKS, INC. - AL	947G	BAYMINETTE	AL
2007-02-06	251-240	0–9 XXXall 10 · 7 holders which blocks →	MCC TELEPHONY OF THE SOUTH, LLC - AL	773F	FOLEY	AL
2007-02-06	251-256	0–9 XXXall 10 · 4 holders which blocks →	MCC TELEPHONY OF THE SOUTH, LLC - AL	773F	FOLEY	AL
2007-02-02	251-324	0–9 XXXall 10 · 3 holders which blocks →	MCC TELEPHONY OF THE SOUTH, LLC - AL	773F	FOLEY	AL
2007-02-02	251-677	0–9 XXXall 10 · 3 holders which blocks →	MCC TELEPHONY OF THE SOUTH, LLC - AL	773F	FOLEY	AL
2007-01-05	251-200	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	FOLEY	AL
2006-06-21	251-622	0–9 XXXall 10 · 2 holders which blocks →	PAETEC ITEL, LLC	829J	MOBILE	AL
2006-05-30	251-727	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL	6804	BREWTON	AL
2006-05-11	251-322	0–9 XXXall 10 · 5 holders which blocks →	MCC TELEPHONY OF THE SOUTH, LLC - AL	773F	ATMORE	AL
2006-05-08	251-300	0–9 XXXall 10 · 5 holders which blocks →	TELEPAK NETWORKS, INC. - AL	947G	MOBILE	AL
2006-03-30	251-655	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	METROPCS, INC.	5562	ATMORE	AL
2006-02-23	251-644	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	MOBILE	AL
2006-01-30	251-272	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AL	5255	MOBILE	AL
2005-04-27	251-214	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MOBILE	AL
2005-03-22	251-697	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	FLOMATON	AL
2005-03-22	251-732	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AL	5255	FLOMATON	AL
2005-03-02	251-616	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AL	5255	CLEAR SPG	AL
2005-02-22	251-538	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL	6804	BREWTON	AL
2005-02-18	251-714	1XXX2XXX7XXX8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	FINCHBURG	AL
2004-12-17	251-244	1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL	6804	PETERMAN	AL
2004-12-16	251-428	1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL	6804	HUXFORD	AL
2004-09-22	251-269	0–9 XXXall 10 · 3 holders which blocks →	ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC	6916	FOLEY	AL
2004-07-14	251-213	2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	FOLEY	AL
2004-07-14	251-215	0–9 XXXall 10 · 3 holders which blocks →	ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC	6916	FOLEY	AL
2004-07-01	251-259	0–9 XXXall 10 · 3 holders which blocks →	ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC	6916	MOBILE	AL
2004-05-25	251-216	1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AL	5255	EVERGREEN	AL
2004-01-27	251-252	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AL	5255	MOBILE	AL
2004-01-19	251-207	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BELLEFONTN	AL
2003-10-27	251-217	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AL	5255	MOBILE	AL
2003-09-26	251-261	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MCCULLOUGH	AL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.