Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026

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 19

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
2016-10-05	778-894	not yet reported which blocks →	TELUS	8086	Squamish	—
2016-10-05	804-805	0–9 XXXall 10 · 6 holders which blocks →	THE VOICE APPLICATION NETWORK, LLC	507J	PETERSBURG	VA
2016-10-05	830-251	0–9 XXXall 10 · 5 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	FLORESVL	TX
2016-10-05	856-846	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 8 holders which blocks →	WIDE VOICE, LLC - NJ	396H	BERLIN	NJ
2016-10-05	862-762	0–9 XXXall 10 · 6 holders which blocks →	WIDE VOICE, LLC - NJ	396H	BELLEVILLE	NJ
2016-10-05	873-996	not yet reported which blocks →	TELUS Mobility	8303	Nicolet	—
2016-10-05	873-997	not yet reported which blocks →	TELUS Mobility	8303	Temiscaming	—
2016-10-04	202-897	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - DC	850D	WSHNGTNZN1	DC
2016-10-04	312-597	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL	6333	CHICGOZN01	IL
2016-10-04	334-747	0–9 XXXwhole prefix which blocks →	LEVEL 3 TELECOM OF ALABAMA, LLC - AL	7327	MONTGOMERY	AL
2016-10-04	365-998	not yet reported which blocks →	TELUS Mobility	8303	Brampton	—
2016-10-04	518-901	0–9 XXXall 10 · 5 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	SCHENCTADY	NY
2016-10-04	716-336	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	BUFFALO	NY
2016-10-04	978-871	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PEABODY	MA
2016-10-04	980-737	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - NC	638E	LATTIMORE	NC
2016-10-03	202-878	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC	6402	WSHNGTNZN1	DC
2016-10-03	249-496	not yet reported which blocks →	Iristel Inc.	154E	Foleyet	—
2016-10-03	256-913	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	JACKSONVL	AL
2016-10-03	315-927	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	UTICA	NY
2016-10-03	315-960	0–9 XXXall 10 · 6 holders which blocks →	EMPIRE LONG DISTANCE CORPORATION	087H	SYRACUSE	NY
2016-10-03	321-603	0–9 XXXall 10 · 7 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - FL	8300	TITUSVILLE	FL
2016-10-03	612-295	0–9 XXXall 10 · 3 holders which blocks →	PEERLESS NETWORK OF MINNESOTA, LLC - MN	107F	TWINCITIES	MN
2016-10-03	778-548	not yet reported which blocks →	TELUS Mobility	8301	Abbotsford	—
2016-10-03	929-446	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN03	NY
2016-10-01	716-916	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks →	THE VOICE APPLICATION NETWORK, LLC	507J	GRAND IS	NY
2016-09-30	224-278	0–9 XXXall 10 · 5 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ROSELLE	IL
2016-09-30	236-980	not yet reported which blocks →	TELUS Mobility	8301	Vancouver	—
2016-09-30	236-981	not yet reported which blocks →	TELUS Mobility	8301	Vancouver	—
2016-09-30	236-982	not yet reported which blocks →	TELUS Mobility	8301	Vancouver	—
2016-09-30	236-983	not yet reported which blocks →	TELUS Mobility	8301	Vancouver	—
2016-09-30	323-628	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	LSAN DA 14	CA
2016-09-30	431-336	not yet reported which blocks →	Bell Mobility	6574	Winnipeg	—
2016-09-30	440-538	0–9 XXXall 10 · 6 holders which blocks →	METROPCS, INC.	5562	LORAIN	OH
2016-09-30	551-234	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	CLIFFSIDE	NJ
2016-09-30	612-261	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	TWINCITIES	MN
2016-09-30	763-247	0–9 XXXall 10 · 4 holders which blocks →	WINDSTREAM NORTHSTAR, LLC - MN	4263	BIG LAKE	MN
2016-09-30	778-758	not yet reported which blocks →	Fido Solutions Inc.	8820	Powell River	—
2016-09-30	929-437	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN07	NY
2016-09-30	929-438	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN10	NY
2016-09-30	949-522	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	IRVINE	CA
2016-09-30	972-903	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WAXAHACHIE	TX
2016-09-29	267-673	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	PHPHSBZN39	PA
2016-09-29	267-674	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	PHPHSBZN43	PA
2016-09-29	267-924	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	PHLDLPHZN2	PA
2016-09-29	475-319	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	BRIDGEPORT	CT
2016-09-29	579-601	not yet reported which blocks →	Bell Canada	8050	Chateauguay	—
2016-09-29	579-602	not yet reported which blocks →	Bell Canada	8050	Granby	—
2016-09-29	579-603	not yet reported which blocks →	Bell Canada	8050	Joliette	—
2016-09-29	579-604	not yet reported which blocks →	Bell Canada	8050	L'Epiphanie-l'Assomption	—
2016-09-29	579-605	not yet reported which blocks →	Bell Canada	8050	Pont-Viau	—

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.