Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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 26

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 22

ONVOY, LLC - CA 21

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
2022-03-17	873-640	not yet reported which blocks →	TELUS Quebec	2243	Rock Island	—
2022-03-17	917-800	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN15	NY
2022-03-17	959-559	0–9 XXXall 10 · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MIDDLETOWN	CT
2022-03-17	959-595	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	SOUTHINGTN	CT
2022-03-16	228-286	0–9 XXXall 10 · 2 holders which blocks →	PAETEC ITEL, LLC	829J	BILOXI	MS
2022-03-16	346-552	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	ALVIN	TX
2022-03-16	463-274	0–9 XXXall 10 · 4 holders which blocks →	PAETEC ITEL, LLC	829J	INDIANAPLS	IN
2022-03-16	564-653	0–9 XXXall 10 · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	VANCOUVER	WA
2022-03-16	620-929	0XXX1XXX2XXX3XXX4XXX8XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	SUBLETTE	KS
2022-03-16	712-878	7XXX8XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	IRETON	IA
2022-03-16	712-996	0XXX6XXX9XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MANSON	IA
2022-03-16	775-494	0XXX1XXX6XXX8XXX9XXX · 5 holders which blocks →	AT&T CORP. - NV	7692	EMPIRE	NV
2022-03-16	856-838	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	PITMAN	NJ
2022-03-16	948-468	0XXX1XXX4XXX7XXX8XXX9XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	CAPECHARLS	VA
2022-03-16	948-946	0–9 XXXall 10 · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	TOANO	VA
2022-03-16	970-525	0XXX2XXX3XXX4XXX5XXX7XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	PAONIA	CO
2022-03-16	989-994	0XXX1XXX2XXX3XXX4XXX7XXX8XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BEAVERTON	MI
2022-03-15	223-287	0–9 XXXwhole prefix which blocks →	LEVEL 3 COMMUNICATIONS, LLC - PA	4007	LANDISVL	PA
2022-03-15	236-234	not yet reported which blocks →	Videotron Ltd.	787G	Vancouver	—
2022-03-15	316-399	0–9 XXXall 10 · 5 holders which blocks →	PAETEC ITEL, LLC	829J	WICHITA	KS
2022-03-15	319-995	1XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	WINFIELD	IA
2022-03-15	414-497	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	MILWAUKZN5	WI
2022-03-15	464-205	0–9 XXXwhole prefix which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IL	6115	PALOS PARK	IL
2022-03-15	479-588	0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 7 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MENA	AR
2022-03-15	539-426	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	PRYOR	OK
2022-03-15	564-669	0–9 XXXall 10 · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	OLYMPIA	WA
2022-03-15	657-575	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	ANAHEIM	CA
2022-03-15	720-698	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO	6567	LONGMONT	CO
2022-03-15	726-224	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	SANANTONIO	TX
2022-03-15	775-558	0–9 XXXall 10 · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	CRYSTALBAY	NV
2022-03-15	810-737	3XXX which blocks →	TON80 COMMUNICATIONS, LLC	516J	HARTLAND	MI
2022-03-15	831-260	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	SOLEDAD	CA
2022-03-15	838-722	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	GLENSFALLS	NY
2022-03-15	864-790	0–9 XXXwhole prefix which blocks →	SUNCOM DBA T-MOBILE USA	8645	ANDERSON	SC
2022-03-15	904-820	0–9 XXXall 10 · 5 holders which blocks →	POWERTEL JACKSONVILLE LICENSES, INC.	7472	JACKSONVL	FL
2022-03-15	936-324	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	CONROE	TX
2022-03-15	936-330	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	CONROE	TX
2022-03-15	979-588	0–9 XXXall 10 · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	HEMPSTEAD	TX
2022-03-14	218-884	0XXX4XXX9XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	STAPLES	MN
2022-03-14	218-949	0XXX1XXX2XXX4XXX9XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	HOYT LAKES	MN
2022-03-14	218-989	0XXX1XXX2XXX3XXX8XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	SABIN	MN
2022-03-14	234-350	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	SHARON CTR	OH
2022-03-14	318-819	0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 4 holders which blocks →	CSC VOICE, LLC	612K	JONESBORO	LA
2022-03-14	318-881	0XXX1XXX6XXX7XXX8XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	SPENCER	LA
2022-03-14	318-910	0XXX1XXX3XXX4XXX9XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	OAK RIDGE	LA
2022-03-14	319-566	1XXX5XXX6XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	RICHLAND	IA
2022-03-14	319-922	1XXX2XXX3XXX8XXX9XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	SALEM	IA
2022-03-14	320-767	6XXX7XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MILACA	MN
2022-03-14	367-800	not yet reported which blocks →	Iristel Inc.	154E	La Malbaie	—
2022-03-14	413-646	1XXX4XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MILLERSFLS	MA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.