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
2019-12-17	828-470	0–9 XXXall 10 · 5 holders which blocks →	TELNYX LLC	073H	ASHEVILLE	NC
2019-12-17	859-529	0–9 XXXall 10 · 2 holders which blocks →	FRACTEL, LLC	965H	COVINGTON	KY
2019-12-17	910-912	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	FAYETTEVL	NC
2019-12-17	913-379	0–9 XXXall 10 · 3 holders which blocks →	AVID COMMUNICATIONS, LLC - KS	742D	KANSASCITY	KS
2019-12-17	979-326	0–9 XXXall 10 · 2 holders which blocks →	TELNYX LLC	073H	BRYAN	TX
2019-12-16	218-514	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	TELNYX LLC	073H	DULUTH	MN
2019-12-16	320-426	0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	TELNYX LLC	073H	ST CLOUD	MN
2019-12-16	337-486	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	STMARTINVL	LA
2019-12-16	575-213	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - NM	206F	ALAMOGORDO	NM
2019-12-16	575-216	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - NM	206F	ANGEL FIRE	NM
2019-12-16	575-237	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - NM	206F	CARLSBAD	NM
2019-12-16	647-512	not yet reported which blocks →	Videotron Ltd.	787G	Toronto	—
2019-12-16	647-514	not yet reported which blocks →	Videotron Ltd.	787G	Toronto	—
2019-12-16	708-694	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	MOKENA	IL
2019-12-16	720-780	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - CO	026D	DENVER	CO
2019-12-13	225-577	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	BATONROUGE	LA
2019-12-13	267-962	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHPHSBZN39	PA
2019-12-13	337-688	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	LK CHARLES	LA
2019-12-13	438-283	not yet reported which blocks →	Bell Mobility	6574	Montreal	—
2019-12-13	438-284	not yet reported which blocks →	Bell Mobility	6574	Montreal	—
2019-12-13	438-285	not yet reported which blocks →	Bell Mobility	6574	Montreal	—
2019-12-13	470-534	0–9 XXXall 10 · 3 holders which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	ATLANTA NE	GA
2019-12-13	504-688	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	NEWORLEANS	LA
2019-12-13	504-946	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	JESUITBEND	LA
2019-12-13	575-210	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NM	206F	TUCUMCARI	NM
2019-12-13	646-540	0–9 XXXall 10 · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	NWYRCYZN01	NY
2019-12-13	647-565	not yet reported which blocks →	Bell Mobility	6574	Toronto	—
2019-12-13	647-579	not yet reported which blocks →	Bell Mobility	6574	Toronto	—
2019-12-13	737-263	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	AUSTIN	TX
2019-12-13	769-254	0XXX1XXX2XXX3XXX6XXX7XXX8XXX · 6 holders which blocks →	AIRUS, INC. - MS	459H	BUCKATUNNA	MS
2019-12-12	309-459	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	BLOOMINGTN	IL
2019-12-12	320-666	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	FOLEY	MN
2019-12-12	612-688	0–9 XXXall 10 · 2 holders which blocks →	FRACTEL, LLC	965H	TWINCITIES	MN
2019-12-12	647-541	not yet reported which blocks →	Bell Mobility	6574	Toronto	—
2019-12-12	872-257	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CHICGOZN05	IL
2019-12-11	320-465	0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks →	FRACTEL, LLC	965H	PINE CITY	MN
2019-12-11	520-386	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	BENSON	AZ
2019-12-11	548-869	not yet reported which blocks →	ISP Telecom Inc.	4727	Baden	—
2019-12-11	548-870	not yet reported which blocks →	ISP Telecom Inc.	4727	St. Clements	—
2019-12-11	548-871	not yet reported which blocks →	ISP Telecom Inc.	4727	Linwood	—
2019-12-11	548-872	not yet reported which blocks →	ISP Telecom Inc.	4727	Elmira	—
2019-12-11	647-510	not yet reported which blocks →	Videotron Ltd.	787G	Toronto	—
2019-12-11	754-253	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	DEERFLDBCH	FL
2019-12-10	239-323	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - FL	937C	CAPE CORAL	FL
2019-12-10	249-887	not yet reported which blocks →	ISP Telecom Inc.	4727	Collingwood	—
2019-12-10	249-890	not yet reported which blocks →	ISP Telecom Inc.	4727	Alliston	—
2019-12-10	249-891	not yet reported which blocks →	ISP Telecom Inc.	4727	Orillia	—
2019-12-10	249-892	not yet reported which blocks →	ISP Telecom Inc.	4727	Stayner	—
2019-12-10	249-893	not yet reported which blocks →	ISP Telecom Inc.	4727	Midland	—
2019-12-10	260-265	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	FORT WAYNE	IN

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.