Recent prefix assignments

358 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
2022-03-15	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
2022-03-14	458-287	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	PRINEVILLE	OR
2022-03-14	463-272	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	CICERO	IN
2022-03-14	463-273	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IN	4803	CARMEL	IN
2022-03-14	464-646	0–9 XXXall 10 · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	PALOS PARK	IL
2022-03-14	515-464	0XXX4XXX5XXX6XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MCCALLSBG	IA
2022-03-14	515-788	1XXX3XXX4XXX8XXX9XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	PERRY	IA
2022-03-14	518-920	0–9 XXXall 10 · 5 holders which blocks →	COMMIO, LLC	939H	GLENSFALLS	NY
2022-03-14	530-969	0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	NTAH BCWY	CA
2022-03-14	574-381	0–9 XXXall 10 · 5 holders which blocks →	PAETEC ITEL, LLC	829J	SOUTH BEND	IN
2022-03-14	585-618	0–9 XXXall 10 · 2 holders which blocks →	COMMIO, LLC	939H	FAIRPORT	NY
2022-03-14	607-415	0–9 XXXall 10 · 2 holders which blocks →	COMMIO, LLC	939H	CORNING	NY
2022-03-14	641-668	4XXX6XXX8XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BUSSEY	IA
2022-03-14	667-827	0–9 XXXall 10 · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BERLIN	MD
2022-03-14	716-612	0–9 XXXall 10 · 4 holders which blocks →	COMMIO, LLC	939H	WILLIAMSVL	NY
2022-03-14	726-219	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	SANANTONIO	TX
2022-03-14	726-220	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	SANANTONIO	TX
2022-03-14	726-221	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	SANANTONIO	TX
2022-03-14	825-863	not yet reported which blocks →	Videotron Ltd.	787G	Calgary	—
2022-03-14	839-267	0–9 XXXall 10 · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BARNWELL	SC
2022-03-14	872-299	0–9 XXXall 10 · 4 holders which blocks →	PAETEC ITEL, LLC	829J	CHICGOZN01	IL
2022-03-14	901-665	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	ONVOY, LLC - TN	525E	MEMPHIS	TN
2022-03-14	938-665	0–9 XXXall 10 · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	TALLADEGA	AL
2022-03-14	979-783	0XXX1XXX2XXX6XXX9XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	EAGLE LAKE	TX
2022-03-11	331-284	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks →	T-MOBILE USA, INC.	6529	BARTLETT	IL
2022-03-11	346-551	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BAMMEL	TX
2022-03-11	438-867	not yet reported which blocks →	TELUS Mobility	8303	Montreal	—
2022-03-11	564-633	2XXX3XXX4XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	WINLOCK	WA
2022-03-11	564-665	4XXX5XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	OCOSTA	WA
2022-03-11	657-571	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	YORBALINDA	CA
2022-03-11	873-945	not yet reported which blocks →	TELUS Quebec	2243	Cookshire	—
2022-03-11	873-946	not yet reported which blocks →	TELUS Quebec	2243	East Angus	—
2022-03-11	873-947	not yet reported which blocks →	TELUS Quebec	2243	La Patrie	—

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.