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
2016-04-13	910-507	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - NC	638E	HOLLYRIDGE	NC
2016-04-13	910-586	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NC	638E	REDSPRINGS	NC
2016-04-13	910-601	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - NC	638E	RICHLANDS	NC
2016-04-13	910-659	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NC	638E	WARSAW	NC
2016-04-13	910-886	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - NC	638E	SNEADSFRRY	NC
2016-04-13	910-936	0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - NC	638E	VASS	NC
2016-04-12	207-250	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WATERVILLE	ME
2016-04-12	236-712	not yet reported which blocks →	Navigata Communications Limited	078G	100 Mile House	—
2016-04-12	236-713	not yet reported which blocks →	Navigata Communications Limited	078G	Quesnel	—
2016-04-12	236-714	not yet reported which blocks →	Navigata Communications Limited	078G	108 Mile House	—
2016-04-12	236-715	not yet reported which blocks →	Navigata Communications Limited	078G	150 Mile House	—
2016-04-12	236-716	not yet reported which blocks →	Navigata Communications Limited	078G	Alexis Creek	—
2016-04-12	236-717	not yet reported which blocks →	Navigata Communications Limited	078G	Alkali Lake	—
2016-04-12	442-204	0–9 XXXall 10 · 6 holders which blocks →	AT&T ENTERPRISES, LLC	516C	VISTA	CA
2016-04-12	469-925	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	PLANO	TX
2016-04-12	470-304	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	ATLANTA NE	GA
2016-04-12	478-205	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	DUBLIN	GA
2016-04-12	517-221	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HOLT	MI
2016-04-12	517-867	0–9 XXXall 10 · 3 holders which blocks →	CLEAR RATE COMMUNICATIONS, LLC	046L	JACKSON	MI
2016-04-12	531-500	0–9 XXXall 10 · 4 holders which blocks →	ALLO COMMUNICATIONS LLC	907K	LINCOLN	NE
2016-04-12	626-877	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	EL MONTE	CA
2016-04-12	626-977	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	LA PUENTE	CA
2016-04-11	240-534	0–9 XXXall 10 · 7 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN2	MD
2016-04-11	240-719	0–9 XXXall 10 · 7 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN5	MD
2016-04-11	240-856	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LAUREL238	MD
2016-04-11	437-537	not yet reported which blocks →	Iristel Inc.	154E	Toronto	—
2016-04-11	587-203	not yet reported which blocks →	Distributel	081E	Crowsnest Pass	—
2016-04-11	657-316	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SILVERADO	CA
2016-04-11	657-318	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	WESTMINSTR	CA
2016-04-11	925-390	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	ECONTRCOST	CA
2016-04-08	208-205	0–9 XXXall 10 · 3 holders which blocks →	QWEST CORPORATION	9636	NAMPA	ID
2016-04-08	385-253	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	MIDVALE	UT
2016-04-08	470-303	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	ATLANTA	GA
2016-04-08	518-919	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks →	PEERLESS NETWORK OF NEW YORK, LLC - NY	155E	PUTNAM	NY
2016-04-08	646-806	0–9 XXXall 10 · 2 holders which blocks →	AIRESPRING, INC. - CA	200B	NWYRCYZN01	NY
2016-04-08	715-227	0–9 XXXall 10 · 6 holders which blocks →	AMHERST TELEPHONE COMPANY	279H	WAUPACA	WI
2016-04-08	786-381	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2016-04-08	910-597	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - NC	638E	BEULAVILLE	NC
2016-04-08	913-326	0–9 XXXall 10 · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	KANSASCITY	KS
2016-04-08	979-225	5XXX which blocks →	EVOLVE CELLULAR, INC.	139F	BORDEN	TX
2016-04-08	979-666	6XXX which blocks →	EVOLVE CELLULAR, INC.	139F	MORAVIA	TX
2016-04-07	269-999	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF MICHIGAN, LLC - MI	933G	BENTON HBR	MI
2016-04-07	315-880	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	UTICA	NY
2016-04-07	361-352	7XXX which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	MIRANDO CY	TX
2016-04-07	380-898	0–9 XXXwhole prefix which blocks →	OHIO BELL TEL CO	9321	WESTERVL	OH
2016-04-07	469-494	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	ENNIS	TX
2016-04-07	567-339	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - OH	464C	VENEDOCIA	OH
2016-04-07	567-704	0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - OH	464C	LYKENS	OH
2016-04-07	587-204	not yet reported which blocks →	Distributel	081E	Fort Macleod	—
2016-04-07	587-420	not yet reported which blocks →	Distributel	081E	Barons	—

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.