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
2022-10-03	672-866	not yet reported which blocks →	Fido Solutions Inc.	5643	Vancouver	—
2022-10-03	718-718	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN05	NY
2022-10-03	737-340	0–9 XXXall 10 · 7 holders which blocks →	T-MOBILE USA, INC.	6529	GEORGETOWN	TX
2022-10-03	772-275	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	FORTPIERCE	FL
2022-10-03	779-350	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MOMENCE	IL
2022-10-03	828-701	0XXX1XXX8XXX9XXX · 2 holders which blocks →	PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC	350F	ASHEVILLE	NC
2022-10-03	830-300	0XXX3XXX6XXX8XXX · 3 holders which blocks →	ONVOY, LLC - TX	903C	COST	TX
2022-10-03	872-320	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CHICGOZN10	IL
2022-10-03	940-344	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	LAKEDALLAS	TX
2022-10-03	956-680	0–9 XXXwhole prefix which blocks →	STPCS JOINT VENTURE, LLC	4290	MISSION	TX
2022-10-03	971-439	0–9 XXXall 10 · 4 holders which blocks →	NUSO, LLC	732J	BEAVERTON	OR
2022-10-03	971-471	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - OR	750E	CLACKAMAS	OR
2022-09-30	228-212	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	TANNERWLMS	MS
2022-09-30	279-289	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - CA	649C	FOLSOM	CA
2022-09-30	437-599	not yet reported which blocks →	Fido Solutions Inc.	5643	Toronto	—
2022-09-30	437-799	not yet reported which blocks →	Fido Solutions Inc.	5643	Toronto	—
2022-09-30	505-542	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	ESPANOLA	NM
2022-09-30	505-868	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	GALLUP	NM
2022-09-30	506-615	not yet reported which blocks →	Iristel Inc.	154E	Campbellton	—
2022-09-30	509-746	0–9 XXXall 10 · 5 holders which blocks →	UNITED STATES CELLULAR - WA	6270	YAKIMA	WA
2022-09-30	515-515	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - IA	221F	FORT DODGE	IA
2022-09-30	605-605	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - SD	162G	ABERDEEN	SD
2022-09-30	681-446	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	MARTINSBG	WV
2022-09-30	734-706	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	BELLEVILLE	MI
2022-09-30	808-229	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	HILO	HI
2022-09-29	217-261	0–9 XXXall 10 · 2 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	MATTOON	IL
2022-09-29	223-301	4XXX which blocks →	COMCAST IP PHONE, LLC	318J	REEDSVILLE	PA
2022-09-29	223-304	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	NEWVILLE	PA
2022-09-29	352-755	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	MOUNT DORA	FL
2022-09-29	368-996	not yet reported which blocks →	TELUS Mobility	8301	Calgary	—
2022-09-29	405-363	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	EDMOND	OK
2022-09-29	405-978	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	BETHANY	OK
2022-09-29	417-514	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	CARTHAGE	MO
2022-09-29	448-212	0XXX1XXX2XXX7XXX8XXX9XXX · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	CRAWFORDVL	FL
2022-09-29	548-766	not yet reported which blocks →	Gosfield North Communication Co-operative Ltd.	117H	Essex	—
2022-09-29	603-649	7XXX which blocks →	COMCAST IP PHONE, LLC	318J	JAFFREY	NH
2022-09-29	646-646	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN01	NY
2022-09-29	681-451	0XXX1XXX2XXX3XXX · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - WV	080F	BUFFALO	WV
2022-09-29	719-692	2XXX7XXX9XXX · 3 holders which blocks →	AT&T - LOCAL	7421	CRIPPLECRK	CO
2022-09-29	727-425	0–9 XXXall 10 · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	NWPTRICHEY	FL
2022-09-29	770-524	0–9 XXXwhole prefix which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	ATLANTA NE	GA
2022-09-29	772-273	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	HOBE SOUND	FL
2022-09-29	772-274	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	JENSEN BCH	FL
2022-09-29	782-725	not yet reported which blocks →	Iristel Inc.	154E	Port Hawkesbury	—
2022-09-29	910-910	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - NC	638E	JACKSONVL	NC
2022-09-28	209-209	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - CA	649C	MODESTO	CA
2022-09-28	209-991	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	LIVINGSTON	CA
2022-09-28	209-994	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	RIPON	CA
2022-09-28	346-592	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	BAMMEL	TX
2022-09-28	346-593	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	BAMMEL	TX

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.