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
2005-02-09	469-328	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	GRANDPRARI	TX
2005-02-09	503-782	1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OR	3234	PACIFIC CY	OR
2005-02-09	631-456	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	BRENTWOOD	NY
2005-02-09	778-216	not yet reported which blocks →	Rogers Communications Canada Inc. (Cable)	8377	Port Coquitlam	—
2005-02-09	778-880	not yet reported which blocks →	TELUS	8086	Abbotsford	—
2005-02-09	805-540	0–9 XXXall 10 · 2 holders which blocks →	UTILITY TELECOM GROUP, LLC - CA	9262	SNLUSOBSPO	CA
2005-02-09	903-490	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	TEXARKANA	TX
2005-02-08	204-760	not yet reported which blocks →	MTS Inc.	8088	Winnipeg	—
2005-02-08	204-801	not yet reported which blocks →	MTS Inc.	991B	Winnipeg	—
2005-02-08	218-433	1XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MN	5256	BENNETTVL	MN
2005-02-08	321-514	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	COCOA	FL
2005-02-08	347-394	0–9 XXXall 10 · 3 holders which blocks →	PAETEC ITEL, LLC	829J	NWYRCYZN07	NY
2005-02-08	386-473	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ORANGECITY	FL
2005-02-08	407-276	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	ORLANDO	FL
2005-02-08	450-614	not yet reported which blocks →	Videotron Ltd.	8306	St-Marc	—
2005-02-08	450-725	not yet reported which blocks →	Videotron Ltd.	8306	Marieville	—
2005-02-08	504-875	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	NEWORLEANS	LA
2005-02-08	507-656	2XXX4XXX5XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MN	5256	WALDORF	MN
2005-02-08	512-747	0–9 XXXall 10 · 2 holders which blocks →	LEVEL 3 OF TELECOM OF TEXAS, LLC - TX	7516	AUSTIN	TX
2005-02-08	561-459	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WPALMBEACH	FL
2005-02-08	585-410	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	ROCHESTER	NY
2005-02-08	601-827	0XXX1XXX2XXX3XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	TYLERTOWN	MS
2005-02-08	601-921	1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	COLLINS	MS
2005-02-08	613-356	not yet reported which blocks →	Bell Canada	8051	Ottawa-Hull	—
2005-02-08	613-369	not yet reported which blocks →	Bell Canada	8051	Ottawa-Hull	—
2005-02-08	620-209	1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	PRETTYPRRI	KS
2005-02-08	646-502	0–9 XXXall 10 · 2 holders which blocks →	PAETEC ITEL, LLC	829J	NWYRCYZN01	NY
2005-02-08	785-219	1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	OSAGE CITY	KS
2005-02-08	785-504	1XXX2XXX3XXX5XXX6XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	GARNETT	KS
2005-02-08	785-756	1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	LYNDON	KS
2005-02-08	813-326	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	TAMPA	FL
2005-02-08	819-717	not yet reported which blocks →	TELUS Quebec	2243	St-Jovite	—
2005-02-08	902-240	not yet reported which blocks →	Bell Mobility Aliant	329A	Halifax	—
2005-02-08	913-204	not yet reported which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	MCLOUTH	KS
2005-02-08	937-730	1XXX which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	ROSSBURG	OH
2005-02-08	937-881	3XXX8XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	UNION CITY	OH
2005-02-08	954-638	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	FTLAUDERDL	FL
2005-02-08	985-415	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA	6505	HAMMOND	LA
2005-02-07	304-808	0XXX1XXX2XXX9XXX · 3 holders which blocks →	COMMUNICATIONS PLUS, INC. - WV	4601	BRIDGEPORT	WV
2005-02-07	347-589	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN05	NY
2005-02-07	347-621	0–9 XXXall 10 · 4 holders which blocks →	CSC VOICE, LLC	612K	NWYRCYZN04	NY
2005-02-07	347-706	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	NWYRCYZN08	NY
2005-02-07	416-354	not yet reported which blocks →	Bell Canada	8051	Toronto	—
2005-02-07	416-479	not yet reported which blocks →	Bell Canada	8051	Toronto	—
2005-02-07	502-759	0–9 XXXall 10 · 2 holders which blocks →	POWERTEL KENTUCKY LICENSES, INC.	365C	LOUISVILLE	KY
2005-02-07	502-889	0–9 XXXall 10 · 3 holders which blocks →	POWERTEL KENTUCKY LICENSES, INC.	365C	LOUISVILLE	KY
2005-02-07	517-488	0–9 XXXall 10 · 2 holders which blocks →	PAETEC ITEL, LLC	829J	LANSING	MI
2005-02-07	646-586	0–9 XXXall 10 · 5 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN01	NY
2005-02-07	870-624	0XXX1XXX2XXX4XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	TUCKERMAN	AR
2005-02-04	702-422	not yet reported which blocks →	LINCOLN COUNTY TEL. SYSTEM, INC.	2351	COYOTE SPG	NV

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.