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
2022-08-24	773-461	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	CHICGOZN02	IL
2022-08-24	816-762	0–9 XXXall 10 · 3 holders which blocks →	PAETEC ITEL, LLC	829J	KANSASCITY	MO
2022-08-24	835-777	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	TERRA NOVA TELECOM INC.	145J	BERNVILLE	PA
2022-08-24	835-888	0–9 XXXall 10 · 2 holders which blocks →	TERRA NOVA TELECOM INC.	145J	PHPHSBZN23	PA
2022-08-24	835-999	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	TERRA NOVA TELECOM INC.	145J	PHPHSBZN22	PA
2022-08-24	970-307	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	GRAND JCT	CO
2022-08-24	984-304	0–9 XXXall 10 · 3 holders which blocks →	PAETEC ITEL, LLC	829J	RALEIGH	NC
2022-08-23	220-236	0XXX which blocks →	ONVOY SPECTRUM, LLC	624H	CHESTER	OH
2022-08-23	352-640	0–9 XXXall 10 · 5 holders which blocks →	BHN IP ENABLED SERVICES, LLC	045L	WILDWOOD	FL
2022-08-23	367-348	not yet reported which blocks →	Bell Mobility	6574	Alma	—
2022-08-23	385-476	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	PROVO	UT
2022-08-23	409-294	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	JASPER	TX
2022-08-23	447-239	1XXX8XXX9XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	SPRINGFLD	IL
2022-08-23	448-440	0–9 XXXwhole prefix which blocks →	ONVOY SPECTRUM, LLC	624H	PANAMACITY	FL
2022-08-23	463-278	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - IN	105F	NOBLESVL	IN
2022-08-23	548-919	not yet reported which blocks →	Iristel Inc.	154E	Leamington	—
2022-08-23	754-292	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	HOLLYWOOD	FL
2022-08-23	754-293	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	POMPANOBCH	FL
2022-08-23	825-866	not yet reported which blocks →	Iristel Inc.	154E	Olds	—
2022-08-23	947-948	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	SOUTHFIELD	MI
2022-08-22	408-581	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	SNJS WEST	CA
2022-08-22	559-814	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	FOWLER	CA
2022-08-22	732-466	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	SOUTHAMBOY	NJ
2022-08-22	769-290	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	NATCHEZ	MS
2022-08-19	206-796	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - WA	006F	SEATTLE	WA
2022-08-19	260-320	0XXX3XXX6XXX · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - IN	105F	MARKLE	IN
2022-08-19	269-238	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MI	991E	KALAMAZOO	MI
2022-08-19	308-298	9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BUSHNELL	NE
2022-08-19	308-347	9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DALTON	NE
2022-08-19	334-880	0–9 XXXwhole prefix which blocks →	ONVOY SPECTRUM, LLC	624H	DOTHAN	AL
2022-08-19	346-581	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	SPRING	TX
2022-08-19	380-253	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	CANALWHSTR	OH
2022-08-19	657-616	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	HUNTITNBCH	CA
2022-08-19	725-280	0–9 XXXall 10 · 4 holders which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	MTCHARLETN	NV
2022-08-19	725-282	0XXX4XXX7XXX8XXX · 3 holders which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	NELSON	NV
2022-08-19	725-283	2XXX3XXX7XXX · 3 holders which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	JEAN	NV
2022-08-19	725-284	0–9 XXXall 10 · 3 holders which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	LAS VEGAS	NV
2022-08-19	769-289	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MS	992E	MADISON	MS
2022-08-19	775-497	0XXX4XXX5XXX7XXX8XXX · 3 holders which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	FERNLEY	NV
2022-08-19	775-498	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	CARSONCITY	NV
2022-08-19	775-503	0–9 XXXall 10 · 3 holders which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	RENO	NV
2022-08-19	775-506	0XXX1XXX4XXX7XXX · 3 holders which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	SILVER SPG	NV
2022-08-19	815-749	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - IL	984E	LOCKPORT	IL
2022-08-19	864-813	0–9 XXXall 10 · 4 holders which blocks →	WOW! INTERNET, CABLE AND PHONE	961J	GREENVILLE	SC
2022-08-19	940-338	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	BOWIE	TX
2022-08-19	971-434	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	STFRD-SNDY	OR
2022-08-18	225-491	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BATONROUGE	LA
2022-08-18	343-654	not yet reported which blocks →	Westport Telephone Company Limited	920D	Smiths Falls	—
2022-08-18	412-546	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	PTTSBGZON1	PA
2022-08-18	425-547	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	RENTON	WA

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.