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 803

HD CARRIER LLC 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
2015-06-16	803-901	8XXX9XXX · 2 holders which blocks →	WINDSTREAM SOUTH CAROLINA, INC.	0517	STMATTHEWS	SC
2015-05-07	803-828	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - SC	548E	COLUMBIA	SC
2015-05-05	803-845	0–9 XXXall 10 · 6 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA SC- LLC	635C	AIKEN	SC
2015-03-10	803-850	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - SC	077F	FAIRFAX	SC
2015-02-25	803-559	0XXX1XXX2XXX3XXX4XXX5XXX9XXX · 6 holders which blocks →	IDT AMERICA, CORP. - SC	467E	WAGENER	SC
2015-01-27	803-615	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - SC	077F	EDGEFIELD	SC
2014-12-24	803-888	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - SC	548E	COLUMBIA	SC
2014-12-22	803-999	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - SC	548E	COLUMBIA	SC
2014-10-09	803-630	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC	098H	CLOVER	SC
2014-09-09	803-878	0–9 XXXall 10 · 7 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC	6398	ORANGEBURG	SC
2014-08-21	803-626	0–9 XXXall 10 · 2 holders which blocks →	PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC	098H	COLUMBIA	SC
2014-08-15	803-674	0–9 XXXall 10 · 8 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	BATESBURG	SC
2014-07-23	803-745	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 TELECOM OF SOUTH CAROLINA, LLC - SC	5344	LANCASTER	SC
2014-06-13	803-681	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - SC	077F	SHARON	SC
2014-05-28	803-757	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - SC	077F	SUMTER	SC
2014-04-23	803-812	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ALLENDALE	SC
2014-03-11	803-570	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC	6398	ORANGEBURG	SC
2014-03-03	803-623	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	CHESTER	SC
2014-02-21	803-638	0–9 XXXall 10 · 7 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	COLUMBIA	SC
2014-02-20	803-306	0–9 XXXall 10 · 3 holders which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	AIKEN	SC
2013-11-15	803-805	0–9 XXXall 10 · 4 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	WHITMIRE	SC
2013-09-09	803-618	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC	6398	JOHNSTON	SC
2013-08-07	803-907	0–9 XXXwhole prefix which blocks →	BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL	9417	COLUMBIA	SC
2013-06-28	803-672	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - SC	5258	DENMARK	SC
2013-06-27	803-636	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - SC	5258	COLUMBIA	SC
2013-06-21	803-470	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - SC	077F	COLUMBIA	SC
2013-02-13	803-602	0–9 XXXall 10 · 6 holders which blocks →	NUSO, LLC	551G	COLUMBIA	SC
2013-01-29	803-662	0–9 XXXall 10 · 4 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	ORANGEBURG	SC
2013-01-09	803-801	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC	6398	WINNSBORO	SC
2013-01-03	803-764	0–9 XXXall 10 · 2 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	COLUMBIA	SC
2012-11-09	803-620	0–9 XXXall 10 · 7 holders which blocks →	PBT COMMUNICATIONS, INC. - SC	3453	YORK	SC
2012-10-31	803-717	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - SC	077F	SHAWAFBHTS	SC
2012-10-10	803-504	0–9 XXXall 10 · 3 holders which blocks →	SUNCOM DBA T-MOBILE USA	8645	ROCK HILL	SC
2012-08-02	803-567	0–9 XXXall 10 · 5 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL	9417	COLUMBIA	SC
2012-07-25	803-281	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - SC	077F	WHITMIRE	SC
2012-06-29	803-814	0–9 XXXall 10 · 4 holders which blocks →	FAIRFIELD COMMUNICATIONS, INC. - SC	863A	COLUMBIA	SC
2012-06-21	803-314	0–9 XXXwhole prefix which blocks →	BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL	9417	COLUMBIA	SC
2012-04-20	803-305	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - SC	077F	SUMTER	SC
2011-12-19	803-248	4XXX7XXX8XXX · 3 holders which blocks →	WINDSTREAM SOUTH CAROLINA, INC.	0517	KERSHAW	SC
2011-10-25	803-219	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	BLACKVILLE	SC
2011-08-23	803-262	0–9 XXXall 10 · 4 holders which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	AIKEN	SC
2011-08-09	803-490	0–9 XXXall 10 · 5 holders which blocks →	WINDSTREAM SOUTH CAROLINA, INC.	0517	LEXINGTON	SC
2011-07-29	803-299	0–9 XXXwhole prefix which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC	8534	COLUMBIA	SC
2011-06-10	803-297	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	COLUMBIA	SC
2011-04-25	803-885	0–9 XXXwhole prefix which blocks →	FTC DIVERSIFIED SERVICES, INC.	4255	SUMTER	SC
2011-03-21	803-716	0–9 XXXall 10 · 3 holders which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	AIKEN	SC
2011-02-23	803-220	0–9 XXXall 10 · 3 holders which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	AIKEN	SC
2011-02-17	803-307	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BATESBURG	SC
2011-02-08	803-291	0–9 XXXall 10 · 6 holders which blocks →	AT&T ENTERPRISES, LLC	516C	SRNGFLSLLY	SC
2011-01-05	803-998	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	NEWELLENTN	SC

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.