Recent prefix assignments

0 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, all time — NPA 901

BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 175

NEW CINGULAR WIRELESS PCS, LLC - GA 93

POWERTEL MEMPHIS LICENSES, INC. 64

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 36

MCIMETRO ACCESS TRANSMISSION SERVICES LLC 35

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
2014-12-19	901-530	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MEMPHIS	TN
2014-12-11	901-480	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	MEMPHIS	TN
2014-11-20	901-518	0–9 XXXwhole prefix which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2014-11-13	901-614	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TN	124F	MEMPHIS	TN
2014-11-10	901-608	0–9 XXXall 10 · 2 holders which blocks →	PAETEC ITEL, LLC	829J	MEMPHIS	TN
2014-10-16	901-468	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 TELECOM OF TENNESSEE, LLC - TN	7517	COLLIERVL	TN
2014-10-16	901-602	0–9 XXXall 10 · 2 holders which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2014-10-16	901-607	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MEMPHIS	TN
2014-08-18	901-430	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TN	124F	ARLINGTON	TN
2014-07-09	901-609	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN	6673	MEMPHIS	TN
2014-07-03	901-567	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	MEMPHIS	TN
2014-03-10	901-513	0–9 XXXwhole prefix which blocks →	METROPCS, INC.	5562	MEMPHIS	TN
2014-03-03	901-443	0–9 XXXall 10 · 2 holders which blocks →	AT&T ENTERPRISES, LLC	516C	MEMPHIS	TN
2014-02-27	901-425	0–9 XXXall 10 · 6 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	MEMPHIS	TN
2014-02-26	901-512	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	MEMPHIS	TN
2014-01-17	901-421	0–9 XXXall 10 · 5 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	MEMPHIS	TN
2014-01-17	901-453	0–9 XXXall 10 · 5 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	MEMPHIS	TN
2013-12-12	901-801	0–9 XXXall 10 · 2 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TN	114F	MEMPHIS	TN
2013-12-05	901-520	0–9 XXXall 10 · 3 holders which blocks →	E. RITTER COMMUNICATIONS, LLC	128L	MILLINGTON	TN
2013-12-05	901-612	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TN	4806	MEMPHIS	TN
2013-08-26	901-424	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TN	114F	SOMERVILLE	TN
2013-08-12	901-203	0–9 XXXwhole prefix which blocks →	PEERLESS NETWORK OF TENNESSEE, LLC - TN	276F	MEMPHIS	TN
2013-06-28	901-364	0–9 XXXwhole prefix which blocks →	METROPCS, INC.	5562	MEMPHIS	TN
2013-06-28	901-376	0–9 XXXwhole prefix which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2013-02-12	901-440	0–9 XXXall 10 · 5 holders which blocks →	NUSO, LLC	551G	MEMPHIS	TN
2013-01-31	901-509	0–9 XXXall 10 · 7 holders which blocks →	COMCAST IP PHONE, LLC	318J	MEMPHIS	TN
2013-01-09	901-228	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	MEMPHIS	TN
2012-11-09	901-505	0–9 XXXall 10 · 5 holders which blocks →	TELEPAK NETWORKS, INC. - TN	948G	MEMPHIS	TN
2012-08-17	901-402	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TN	124F	MOSCOW	TN
2012-07-25	901-401	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TN	124F	WESTWHITEV	TN
2012-05-22	901-352	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TN	4806	LAGRANGE	TN
2012-04-10	901-330	0–9 XXXwhole prefix which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2012-03-29	901-249	0–9 XXXall 10 · 3 holders which blocks →	AT&T ENTERPRISES, LLC	516C	MEMPHIS	TN
2012-03-08	901-208	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN	6673	MEMPHIS	TN
2012-02-01	901-207	0–9 XXXall 10 · 4 holders which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2012-01-10	901-206	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	MEMPHIS	TN
2011-07-11	901-244	0–9 XXXall 10 · 4 holders which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2011-06-22	901-232	0–9 XXXall 10 · 3 holders which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2011-06-09	901-220	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	MEMPHIS	TN
2011-04-14	901-900	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	MEMPHIS	TN
2011-03-24	901-800	0–9 XXXall 10 · 6 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	MEMPHIS	TN
2011-03-02	901-600	0–9 XXXwhole prefix which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2011-01-11	901-500	0–9 XXXall 10 · 2 holders which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2010-12-14	901-444	0–9 XXXall 10 · 4 holders which blocks →	PAETEC ITEL, LLC	829J	ARLINGTON	TN
2010-11-23	901-300	0–9 XXXall 10 · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TN	4806	MEMPHIS	TN
2010-07-16	901-343	0–9 XXXall 10 · 5 holders which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2010-06-09	901-736	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	MEMPHIS	TN
2010-03-17	901-310	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MEMPHIS	TN
2010-03-09	901-654	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 TELECOM OF TENNESSEE, LLC - TN	7517	MEMPHIS	TN
2010-01-18	901-308	0–9 XXXall 10 · 5 holders which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN

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.