Recent prefix assignments

360 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 28

ONVOY, LLC - CA 26

NEW CINGULAR WIRELESS PCS, LLC - IL 26

Rogers Communications Canada Inc. (Wireless) 23

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
2021-09-15	672-788	not yet reported which blocks →	ISP Telecom Inc.	4727	Port Renfrew	—
2021-09-15	672-789	not yet reported which blocks →	ISP Telecom Inc.	4727	Tahsis	—
2021-09-15	672-790	not yet reported which blocks →	ISP Telecom Inc.	4727	Winter Harbour	—
2021-09-15	743-230	0–9 XXXall 10 · 3 holders which blocks →	IP HORIZON LLC	515J	GREENSBORO	NC
2021-09-15	939-321	0–9 XXXwhole prefix which blocks →	SUNCOM DBA T-MOBILE USA	8645	MANATI	PR
2021-09-15	939-363	0–9 XXXall 10 · 2 holders which blocks →	SUNCOM DBA T-MOBILE USA	8645	BAYAMONNOR	PR
2021-09-15	939-408	0–9 XXXwhole prefix which blocks →	SUNCOM DBA T-MOBILE USA	8645	CAROLINA	PR
2021-09-15	984-284	0–9 XXXall 10 · 4 holders which blocks →	IP HORIZON LLC	515J	RALEIGH	NC
2021-09-14	202-666	0–9 XXXall 10 · 5 holders which blocks →	WIDE VOICE, LLC - DC	538H	WSHNGTNZN1	DC
2021-09-14	202-993	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN1	DC
2021-09-14	202-995	0–9 XXXwhole prefix which blocks →	ONVOY SPECTRUM, LLC	624H	WSHNGTNZN1	DC
2021-09-14	214-795	0–9 XXXwhole prefix which blocks →	ONVOY SPECTRUM, LLC	624H	DLFTWTARPT	TX
2021-09-14	236-502	not yet reported which blocks →	ISP Telecom Inc.	4727	White Rock	—
2021-09-14	236-503	not yet reported which blocks →	ISP Telecom Inc.	4727	Whonnock	—
2021-09-14	236-770	not yet reported which blocks →	ISP Telecom Inc.	4727	Britannia Beach	—
2021-09-14	236-771	not yet reported which blocks →	ISP Telecom Inc.	4727	Pitt Meadows	—
2021-09-14	236-772	not yet reported which blocks →	ISP Telecom Inc.	4727	Squamish	—
2021-09-14	251-373	0–9 XXXall 10 · 4 holders which blocks →	IP HORIZON LLC	515J	MOBILE	AL
2021-09-14	260-290	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	IP HORIZON LLC	515J	HUNTINGTON	IN
2021-09-14	276-260	0–9 XXXall 10 · 4 holders which blocks →	UNITED STATES CELLULAR - VA	6283	GALAX	VA
2021-09-14	334-840	0–9 XXXall 10 · 4 holders which blocks →	IP HORIZON LLC	515J	MONTGOMERY	AL
2021-09-14	445-228	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	PHLDLPHZN4	PA
2021-09-14	463-256	0–9 XXXall 10 · 2 holders which blocks →	IP HORIZON LLC	515J	INDIANAPLS	IN
2021-09-14	470-967	0–9 XXXwhole prefix which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	WINDER	GA
2021-09-14	574-378	0–9 XXXall 10 · 5 holders which blocks →	IP HORIZON LLC	515J	SOUTH BEND	IN
2021-09-14	612-633	0–9 XXXwhole prefix which blocks →	ONVOY SPECTRUM, LLC	624H	TWINCITIES	MN
2021-09-14	623-275	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	PHOENIX	AZ
2021-09-14	659-241	0–9 XXXall 10 · 6 holders which blocks →	IP HORIZON LLC	515J	BIRMINGHAM	AL
2021-09-14	672-365	not yet reported which blocks →	ISP Telecom Inc.	4727	Cobble Hill	—
2021-09-14	684-274	not yet reported which blocks →	AST TELECOM, LLC	1460	AM SAMOA	AS
2021-09-14	689-253	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KISSIMMEE	FL
2021-09-14	726-215	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	SANANTONIO	TX
2021-09-14	737-301	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	AUSTIN	TX
2021-09-14	786-820	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2021-09-14	786-887	0–9 XXXwhole prefix which blocks →	ONVOY SPECTRUM, LLC	624H	MIAMI	FL
2021-09-14	813-869	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - FL	4802	TAMPACEN	FL
2021-09-14	854-215	0XXX2XXX3XXX which blocks →	ONVOY, LLC - SC	548E	BETHUNE	SC
2021-09-14	854-224	0XXX1XXX2XXX3XXX4XXX · 3 holders which blocks →	ONVOY, LLC - SC	548E	MCBEE	SC
2021-09-14	907-921	0–9 XXXall 10 · 2 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC	724J	ANCHORAGE	AK
2021-09-14	929-597	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	NWYRCYZN03	NY
2021-09-14	930-246	0XXX1XXX2XXX · 2 holders which blocks →	IP HORIZON LLC	515J	EVANSVILLE	IN
2021-09-14	930-249	0–9 XXXall 10 · 2 holders which blocks →	IP HORIZON LLC	515J	BLOOMINGTN	IN
2021-09-14	945-219	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - TX	903C	DALLAS	TX
2021-09-14	949-695	0–9 XXXall 10 · 3 holders which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	IRVINE	CA
2021-09-14	949-739	0–9 XXXall 10 · 5 holders which blocks →	TELNYX LLC	073H	IRVINE	CA
2021-09-14	959-599	0–9 XXXall 10 · 5 holders which blocks →	SKYE TELECOM LLC DBA SKYETEL	622J	HARTFORD	CT
2021-09-13	213-597	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	LSAN DA 13	CA
2021-09-13	236-890	not yet reported which blocks →	ISP Telecom Inc.	4727	Haney	—
2021-09-13	236-891	not yet reported which blocks →	ISP Telecom Inc.	4727	Ladner	—
2021-09-13	236-901	not yet reported which blocks →	ISP Telecom Inc.	4727	Boston Bar	—

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.