Recent prefix assignments

349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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 31

ONVOY, LLC - CA 27

NEW CINGULAR WIRELESS PCS, LLC - IL 27

ONVOY, LLC - NJ 15

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
2002-05-23	810-746	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	HARTLAND	MI
2002-05-23	810-788	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	YALE	MI
2002-05-23	812-701	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MADISON	IN
2002-05-23	812-756	6XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	VERSAILLES	IN
2002-05-23	812-767	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	NO VERNON	IN
2002-05-23	812-797	6XXX7XXX8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BEDFORD	IN
2002-05-23	812-798	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	LINTON	IN
2002-05-23	812-820	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SCOTTSBURG	IN
2002-05-23	812-844	2XXX3XXX4XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SALEM	IN
2002-05-23	859-297	3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	VERSAILLES	KY
2002-05-23	904-673	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	JACKSONVL	FL
2002-05-23	919-430	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	SUNCOM DBA T-MOBILE USA	8645	DURHAM	NC
2002-05-23	971-252	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OR	3234	STFRD-SNDY	OR
2002-05-22	217-715	not yet reported which blocks →	NORTH COUNTY COMMUNICATION CORPORATION - CA	7894	LOVINGTON	IL
2002-05-22	301-956	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	VERIZON MARYLAND, INC.	9212	GAITHERSBG	MD
2002-05-22	405-648	0–9 XXXall 10 · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OK	5257	ANADARKO	OK
2002-05-22	678-779	not yet reported which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	GAINESVL	GA
2002-05-22	678-858	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	GAINESVL	GA
2002-05-22	678-989	4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL	9417	GAINESVL	GA
2002-05-22	706-662	5XXX6XXX7XXX8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	COLUMBUS	GA
2002-05-22	828-379	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NC	3235	BOONE	NC
2002-05-22	845-323	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NEW CITY	NY
2002-05-22	859-241	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	PAETEC ITEL, LLC	829J	NICHOLASVL	KY
2002-05-21	308-615	none assigned yet which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE	5807	CHADRON	NE
2002-05-21	334-294	0XXX3XXX4XXX5XXX · 2 holders which blocks →	METROPCS, INC.	5562	MONTGOMERY	AL
2002-05-21	402-710	4XXX5XXX6XXX7XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE	5807	YORK	NE
2002-05-21	616-890	none assigned yet which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	GRAND RPDS	MI
2002-05-21	646-296	none assigned yet which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN01	NY
2002-05-21	651-341	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2002-05-21	708-699	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	LA GRANGE	IL
2002-05-21	712-934	not yet reported which blocks →	NORTHWEST IOWA TELEPHONE, LLC	1260	SERGENTBLF	IA
2002-05-21	773-759	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	CHICGOZN03	IL
2002-05-21	786-877	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	MIAMI	FL
2002-05-21	850-525	none assigned yet which blocks →	ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC	6916	PENSACOLA	FL
2002-05-21	918-718	0XXX2XXX4XXX5XXX8XXX · 4 holders which blocks →	T-MOBILE USA, INC.	6529	TAHLEQUAH	OK
2002-05-21	918-908	1XXX2XXX3XXX4XXX5XXX8XXX · 2 holders which blocks →	T-MOBILE USA, INC.	6529	STROUD	OK
2002-05-21	918-926	1XXX3XXX6XXX7XXX8XXX · 4 holders which blocks →	T-MOBILE USA, INC.	6529	CHECOTAH	OK
2002-05-20	224-653	0XXX7XXX8XXX9XXX · 3 holders which blocks →	ILLINOIS BELL TEL CO	9329	ROSELLE	IL
2002-05-20	229-796	2XXX9XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - GA	6116	OCILLA	GA
2002-05-20	229-798	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MOULTRIE	GA
2002-05-20	256-206	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ATHENS	AL
2002-05-20	256-425	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks →	PAETEC ITEL, LLC	829J	HUNTSVILLE	AL
2002-05-20	308-737	1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE	5807	MCCOOK	NE
2002-05-20	318-235	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MONROE	LA
2002-05-20	337-448	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA	6505	MELVILLE	LA
2002-05-20	347-254	3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN07	NY
2002-05-20	347-255	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN10	NY
2002-05-20	402-806	3XXX4XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE	5807	BEATRICE	NE
2002-05-20	410-690	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	EASTON	MD
2002-05-20	434-222	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA	6827	SO BOSTON	VA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.