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
2005-06-14	864-797	0–9 XXXwhole prefix which blocks →	BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL	9417	GREENVILLE	SC
2005-06-14	904-302	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	JACKSONVL	FL
2005-06-14	904-303	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	JACKSONVL	FL
2005-06-14	904-304	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	JACKSONVL	FL
2005-06-14	904-305	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	JACKSONVL	FL
2005-06-14	913-212	0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	LOUISBURG	KS
2005-06-14	941-580	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	BRADENTON	FL
2005-06-14	973-897	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	POMPTONLKS	NJ
2005-06-13	225-435	0–9 XXXall 10 · 8 holders which blocks →	PAETEC ITEL, LLC	829J	LIVINGSTON	LA
2005-06-13	276-484	0XXX1XXX4XXX6XXX9XXX · 5 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA	7299	WYTHEVILLE	VA
2005-06-13	479-922	not yet reported which blocks →	VANTAGE TELECOM, LLC DBA NEWROADS TELECOM - AR	5018	VAN BUREN	AR
2005-06-13	551-497	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	HACKENSACK	NJ
2005-06-13	571-451	0–9 XXXall 10 · 3 holders which blocks →	PAETEC ITEL, LLC	829J	WSNGTNZN08	VA
2005-06-13	703-357	0–9 XXXall 10 · 3 holders which blocks →	PAETEC ITEL, LLC	829J	OCCOQUAN	VA
2005-06-13	703-853	0–9 XXXall 10 · 3 holders which blocks →	PAETEC ITEL, LLC	829J	MANASSAS	VA
2005-06-11	702-439	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	LAS VEGAS	NV
2005-06-11	985-441	0–9 XXXall 10 · 8 holders which blocks →	PAETEC ITEL, LLC	829J	CHACKBAY	LA
2005-06-10	270-612	0XXX1XXX2XXX3XXX6XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	PARK CITY	KY
2005-06-10	347-598	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN07	NY
2005-06-10	347-756	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN06	NY
2005-06-10	551-689	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	JERSEYCITY	NJ
2005-06-10	570-701	0–9 XXXall 10 · 8 holders which blocks →	SERVICE ELECTRIC TELEPHONE COMPANY, LLC	8320	NORTHUBRLD	PA
2005-06-10	585-208	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	ROCHESTER	NY
2005-06-10	646-763	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN01	NY
2005-06-10	662-733	0XXX1XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	DUNCAN	MS
2005-06-10	706-952	1XXX2XXX4XXX5XXX6XXX · 4 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	RINGGOLD	GA
2005-06-10	716-462	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	BUFFALO	NY
2005-06-09	202-536	0–9 XXXall 10 · 3 holders which blocks →	PAETEC ITEL, LLC	829J	WSHNGTNZN1	DC
2005-06-09	304-914	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WEIRTON	WV
2005-06-09	404-397	0–9 XXXall 10 · 3 holders which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	ATLANTA	GA
2005-06-09	418-929	not yet reported which blocks →	Bell Mobility	6574	Quebec	—
2005-06-09	480-393	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	PHOENIX	AZ
2005-06-09	819-445	not yet reported which blocks →	Telephone Drummond Inc	8257	Drummondville	—
2005-06-09	978-822	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MA	990E	SHIRLEY	MA
2005-06-09	985-250	0–9 XXXall 10 · 7 holders which blocks →	PAETEC ITEL, LLC	829J	PEARLRIVER	LA
2005-06-08	407-453	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ORLANDO	FL
2005-06-08	407-454	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ORLANDO	FL
2005-06-08	407-455	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ORLANDO	FL
2005-06-08	407-456	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ORLANDO	FL
2005-06-08	605-579	0XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HOWARD	SD
2005-06-08	620-639	not yet reported which blocks →	NEX-TECH WIRELESS, LLC	122D	GREAT BEND	KS
2005-06-08	716-526	0–9 XXXall 10 · 7 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	LAKEWOOD	NY
2005-06-08	716-922	0XXX2XXX3XXX4XXX6XXX7XXX9XXX · 6 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	FREWSBURG	NY
2005-06-08	904-623	0–9 XXXwhole prefix which blocks →	BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL	9417	JACKSONVL	FL
2005-06-07	267-322	0–9 XXXall 10 · 4 holders which blocks →	PAETEC ITEL, LLC	829J	PHLDLPHZN1	PA
2005-06-07	270-504	0–9 XXXall 10 · 7 holders which blocks →	POWERTEL KENTUCKY LICENSES, INC.	365C	HARTFORD	KY
2005-06-07	416-342	not yet reported which blocks →	TELUS Integrated Communications	2782	Toronto	—
2005-06-07	505-701	not yet reported which blocks →	SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA	4146	FARMINGTON	NM
2005-06-07	780-757	not yet reported which blocks →	Shaw Telecom Inc.	497E	Edmonton	—
2005-06-06	314-448	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	ST LOUIS	MO

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.