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
2003-10-29	403-968	not yet reported which blocks →	TELUS Mobility	8301	Calgary	—
2003-10-29	418-293	not yet reported which blocks →	TELUS Quebec	8083	Baie-Comeau (Hauterive)	—
2003-10-29	607-206	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	BINGHAMTON	NY
2003-10-28	316-201	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS	7593	WICHITA	KS
2003-10-28	414-455	0–9 XXXall 10 · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	MILWAUKZN1	WI
2003-10-28	801-454	0–9 XXXwhole prefix which blocks →	FIRSTDIGITAL TELECOM, LLC - UT	5727	MIDVALE	UT
2003-10-28	801-460	0–9 XXXwhole prefix which blocks →	FIRSTDIGITAL TELECOM, LLC - UT	5727	MIDVALE	UT
2003-10-28	801-665	0–9 XXXwhole prefix which blocks →	FIRSTDIGITAL TELECOM, LLC - UT	5727	SALT LAKE	UT
2003-10-28	801-672	0–9 XXXwhole prefix which blocks →	FIRSTDIGITAL TELECOM, LLC - UT	5727	SALT LAKE	UT
2003-10-28	801-757	0–9 XXXwhole prefix which blocks →	FIRSTDIGITAL TELECOM, LLC - UT	5727	SALT LAKE	UT
2003-10-28	828-400	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	WAYNESVL	NC
2003-10-28	843-655	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC	6398	MYRTLE BCH	SC
2003-10-27	251-217	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AL	5255	MOBILE	AL
2003-10-27	260-247	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN	7440	FORT WAYNE	IN
2003-10-27	479-221	0–9 XXXall 10 · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR	7277	FORT SMITH	AR
2003-10-27	757-747	0–9 XXXwhole prefix which blocks →	PAETEC ITEL, LLC	829J	NRFOLKZON2	VA
2003-10-27	804-249	0–9 XXXall 10 · 2 holders which blocks →	PAETEC ITEL, LLC	829J	RICHMOND	VA
2003-10-27	812-590	0–9 XXXall 10 · 5 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN	7440	NEW ALBANY	IN
2003-10-27	828-200	4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	HIGHLANDS	NC
2003-10-24	254-523	0–9 XXXall 10 · 5 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX	7249	WACO	TX
2003-10-24	256-610	0–9 XXXall 10 · 3 holders which blocks →	SOUTHERN COMMUNICATIONS SERVICES, INC.	6744	WEDOWEE	AL
2003-10-24	304-712	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV	6394	BECKLEY	WV
2003-10-24	308-250	not yet reported which blocks →	N.E. COLORADO CELLULAR, INC.	6874	SIDNEY	NE
2003-10-24	325-201	0–9 XXXall 10 · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ABILENE	TX
2003-10-24	352-558	0–9 XXXall 10 · 5 holders which blocks →	METROPCS NETWORKS, LLC	899D	WILLISTON	FL
2003-10-24	407-557	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	CELEBRATN	FL
2003-10-24	505-947	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	FARMINGTON	NM
2003-10-24	506-440	not yet reported which blocks →	Bell Mobility Aliant	329A	Fredericton	—
2003-10-24	506-530	not yet reported which blocks →	Bell Mobility Aliant	329A	Shediac	—
2003-10-24	709-450	not yet reported which blocks →	Bell Mobility Aliant	329A	St. Anthony	—
2003-10-24	709-668	not yet reported which blocks →	Bell Mobility Aliant	329A	Springdale	—
2003-10-24	785-212	2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS	6532	LINDSBORG	KS
2003-10-24	806-283	0–9 XXXall 10 · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	LUBBOCK	TX
2003-10-24	806-290	0–9 XXXall 10 · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	AMARILLO	TX
2003-10-24	806-308	not yet reported which blocks →	VEXUS	4913	WOODROW	TX
2003-10-24	859-474	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 TELECOM OF KENTUCKY, LLC - KY	7260	ALEXANDRIA	KY
2003-10-24	915-307	0–9 XXXall 10 · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	EL PASO	TX
2003-10-24	940-232	0–9 XXXall 10 · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WICHITAFLS	TX
2003-10-24	951-837	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	MURRIETA	CA
2003-10-23	239-377	0–9 XXXwhole prefix which blocks →	PAETEC ITEL, LLC	829J	NO NAPLES	FL
2003-10-23	386-338	0–9 XXXall 10 · 6 holders which blocks →	AT&T - LOCAL	7421	FLAGLERBCH	FL
2003-10-23	403-361	not yet reported which blocks →	TELUS	8084	Strathmore	—
2003-10-23	403-636	not yet reported which blocks →	TELUS	8084	Sundre	—
2003-10-23	418-282	not yet reported which blocks →	TELUS Mobility	8303	Baie-Comeau (Hauterive)	—
2003-10-23	478-233	8XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	GORDON	GA
2003-10-23	478-234	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	LKSINCLAIR	GA
2003-10-23	478-235	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	MARSHALLVL	GA
2003-10-23	506-878	not yet reported which blocks →	Aliant Telecom(NB)	8090	Moncton	—
2003-10-22	419-709	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MANSFIELD	OH
2003-10-22	514-225	not yet reported which blocks →	Primus Telecommunications Canada Inc.	201A	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.