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
2014-07-10	762-448	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	JASPER	GA
2014-07-10	929-283	0–9 XXXall 10 · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY	7133	NWYRCYZN06	NY
2014-07-10	970-699	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO	6567	LOVELAND	CO
2014-07-09	289-540	not yet reported which blocks →	Distributel	082E	Streetsville	—
2014-07-09	506-414	not yet reported which blocks →	Aliant Telecom(NB)	8090	Moncton	—
2014-07-09	506-415	not yet reported which blocks →	Aliant Telecom(NB)	8090	Fredericton	—
2014-07-09	506-416	not yet reported which blocks →	Aliant Telecom(NB)	8090	Bathurst	—
2014-07-09	506-417	not yet reported which blocks →	Aliant Telecom(NB)	8090	Miramichi	—
2014-07-09	506-419	not yet reported which blocks →	Aliant Telecom(NB)	8090	Edmundston	—
2014-07-09	506-420	not yet reported which blocks →	Aliant Telecom(NB)	8090	Saint John	—
2014-07-09	901-609	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN	6673	MEMPHIS	TN
2014-07-09	902-519	not yet reported which blocks →	Aliant Telecom (PEI)	8087	Charlottetown	—
2014-07-09	902-571	not yet reported which blocks →	Aliant Telecom (NS)	8089	Halifax	—
2014-07-08	219-301	0–9 XXXall 10 · 6 holders which blocks →	AT&T ENTERPRISES, LLC	516C	HIGHLAND	IN
2014-07-08	361-339	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	ONVOY, LLC - TX	903C	PT ARANSAS	TX
2014-07-08	385-230	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	PROVO	UT
2014-07-08	385-299	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	SALT LAKE	UT
2014-07-08	402-704	0–9 XXXall 10 · 7 holders which blocks →	GREAT PLAINS BROADBAND, INC. - NE	012E	FREMONT	NE
2014-07-08	435-255	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	TOOELE	UT
2014-07-08	435-265	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	LOGAN	UT
2014-07-08	440-459	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH	7443	HILLCREST	OH
2014-07-08	469-559	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	GRANDPRARI	TX
2014-07-08	469-610	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	GRANDPRARI	TX
2014-07-08	667-777	0–9 XXXall 10 · 8 holders which blocks →	PEERLESS NETWORK OF MARYLAND, LLC	568G	SEVERNA PK	MD
2014-07-08	682-321	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	ARLINGTON	TX
2014-07-08	832-963	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	HOUSTON	TX
2014-07-08	980-288	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	CHARLOTTE	NC
2014-07-07	317-982	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	INDIANAPLS	IN
2014-07-07	385-519	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	CLEARFIELD	UT
2014-07-07	415-991	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	SAN RAFAEL	CA
2014-07-07	424-356	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	INGLEWOOD	CA
2014-07-07	442-233	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	LENWOOD	CA
2014-07-07	442-237	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	ESCONDIDO	CA
2014-07-07	469-609	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	PLANO	TX
2014-07-07	574-701	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	GALVESTON	IN
2014-07-07	618-515	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	E ST LOUIS	IL
2014-07-07	618-701	0–9 XXXall 10 · 7 holders which blocks →	METROPCS, INC.	5562	HIGHLAND	IL
2014-07-07	618-702	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	LEBANON	IL
2014-07-07	619-552	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	NATIONALCY	CA
2014-07-07	682-242	0–9 XXXwhole prefix which blocks →	SOUTHWESTERN BELL	9533	ARLINGTON	TX
2014-07-07	763-251	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MN	5256	TWINCITIES	MN
2014-07-07	912-259	0–9 XXXall 10 · 5 holders which blocks →	COMSOUTH TELENET, INC. - GA	9161	STATESBORO	GA
2014-07-07	949-537	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - CA	649C	IRVINE	CA
2014-07-07	949-562	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	IRVINE	CA
2014-07-07	951-423	0–9 XXXall 10 · 5 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	PERRIS	CA
2014-07-03	206-519	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	SEATTLE	WA
2014-07-03	226-342	not yet reported which blocks →	TELUS Mobility	8303	Aylmer	—
2014-07-03	249-777	not yet reported which blocks →	TELUS Mobility	8303	Mindemoya	—
2014-07-03	314-339	0–9 XXXall 10 · 6 holders which blocks →	METROPCS, INC.	5562	ST LOUIS	MO
2014-07-03	438-452	not yet reported which blocks →	TELUS Mobility	8303	Montreal	—

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.