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
2016-12-08	813-953	0–9 XXXall 10 · 6 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	TAMPANTH	FL
2016-12-08	830-507	0–9 XXXall 10 · 5 holders which blocks →	STPCS JOINT VENTURE, LLC	4290	DEL RIO	TX
2016-12-08	912-333	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	HAZLEHURST	GA
2016-12-08	941-304	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	PALMETTO	FL
2016-12-08	970-617	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO	6567	LOVELAND	CO
2016-12-07	251-312	0–9 XXXall 10 · 4 holders which blocks →	MCC TELEPHONY OF THE SOUTH, LLC - AL	773F	REPTON	AL
2016-12-07	431-733	not yet reported which blocks →	TELUS Mobility	8303	Altona	—
2016-12-07	431-734	not yet reported which blocks →	TELUS Mobility	8303	Killarney	—
2016-12-07	431-735	not yet reported which blocks →	TELUS Mobility	8303	Teulon	—
2016-12-07	431-736	not yet reported which blocks →	TELUS Mobility	8303	Pilot Mound	—
2016-12-07	431-737	not yet reported which blocks →	TELUS Mobility	8303	Arborg	—
2016-12-07	438-213	not yet reported which blocks →	Bell Canada	8050	Montreal	—
2016-12-07	438-214	not yet reported which blocks →	Bell Canada	8050	Montreal	—
2016-12-07	438-215	not yet reported which blocks →	Bell Canada	8050	Montreal	—
2016-12-07	438-216	not yet reported which blocks →	Bell Canada	8050	Montreal	—
2016-12-07	438-217	not yet reported which blocks →	Bell Canada	8050	Montreal	—
2016-12-07	509-904	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WA	6121	SPOKANE	WA
2016-12-07	587-406	not yet reported which blocks →	Iristel Inc.	154E	St. Paul	—
2016-12-07	587-606	not yet reported which blocks →	Iristel Inc.	154E	Vermilion	—
2016-12-07	587-607	not yet reported which blocks →	Iristel Inc.	154E	Wainwright	—
2016-12-07	734-802	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	YPSILANTI	MI
2016-12-07	778-743	not yet reported which blocks →	Iristel Inc.	154E	Sparwood	—
2016-12-07	910-605	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	FAYETTEVL	NC
2016-12-07	970-816	0–9 XXXall 10 · 8 holders which blocks →	T-MOBILE USA, INC.	6529	CORTEZ	CO
2016-12-06	205-847	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AL	5255	BIRMINGHAM	AL
2016-12-06	813-547	0–9 XXXall 10 · 6 holders which blocks →	METROPCS, INC.	5562	TAMPAWST	FL
2016-12-06	984-236	0–9 XXXwhole prefix which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - NC	8389	RALEIGH	NC
2016-12-05	202-871	0–9 XXXall 10 · 2 holders which blocks →	TELNYX LLC	073H	WSHNGTNZN1	DC
2016-12-05	262-330	0–9 XXXall 10 · 5 holders which blocks →	TELNYX LLC	073H	MILWAUKZN2	WI
2016-12-05	316-348	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	TOWANDA	KS
2016-12-05	336-840	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	GREENSBORO	NC
2016-12-05	434-215	0–9 XXXall 10 · 7 holders which blocks →	TELNYX LLC	073H	LYNCHBURG	VA
2016-12-05	434-484	0–9 XXXall 10 · 5 holders which blocks →	TELNYX LLC	073H	CHARLOTSVL	VA
2016-12-05	470-532	0–9 XXXall 10 · 2 holders which blocks →	TELNYX LLC	073H	ATLANTA	GA
2016-12-05	475-234	0–9 XXXall 10 · 6 holders which blocks →	TELNYX LLC	073H	NEW HAVEN	CT
2016-12-05	518-219	0–9 XXXall 10 · 6 holders which blocks →	TELNYX LLC	073H	PLATTSBG	NY
2016-12-05	540-655	0–9 XXXall 10 · 3 holders which blocks →	TELNYX LLC	073H	ROANOKE	VA
2016-12-05	551-278	0–9 XXXall 10 · 5 holders which blocks →	TELNYX LLC	073H	ORADELL	NJ
2016-12-05	585-401	1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks →	TELNYX LLC	073H	WYOMING	NY
2016-12-05	587-210	not yet reported which blocks →	Iristel Inc.	154E	Lac La Biche	—
2016-12-05	587-605	not yet reported which blocks →	Iristel Inc.	154E	Lloydminster	—
2016-12-05	607-365	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	BINGHAMTON	NY
2016-12-05	608-405	0–9 XXXall 10 · 7 holders which blocks →	TELNYX LLC	073H	MADISON	WI
2016-12-05	609-852	0–9 XXXall 10 · 7 holders which blocks →	TELNYX LLC	073H	ATLNTIC CY	NJ
2016-12-05	631-301	0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 5 holders which blocks →	TELNYX LLC	073H	FARMINGDL	NY
2016-12-05	701-498	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	BISMARCK	ND
2016-12-05	716-482	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	TELNYX LLC	073H	BUFFALO	NY
2016-12-05	757-756	0–9 XXXall 10 · 5 holders which blocks →	TELNYX LLC	073H	NRFOLKZON2	VA
2016-12-05	786-578	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2016-12-05	804-609	0–9 XXXall 10 · 6 holders which blocks →	TELNYX LLC	073H	PETERSBURG	VA

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.