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
2021-03-31	224-382	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL	6333	GLENVIEW	IL
2021-03-31	229-512	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	THOMASVL	GA
2021-03-31	253-544	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - WA	483E	PUYALLUP	WA
2021-03-31	307-393	0–9 XXXall 10 · 3 holders which blocks →	AIRUS, INC. - WY	581H	EVANSTON	WY
2021-03-31	316-910	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - KS	205F	WICHITA	KS
2021-03-31	380-225	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	LOCKBOURNE	OH
2021-03-31	423-880	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - TN	525E	JOHNSON CY	TN
2021-03-31	423-980	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - TN	525E	CHATTNOOGA	TN
2021-03-31	430-282	0XXX2XXX · 2 holders which blocks →	TELNYX LLC	073H	VIVIAN	TX
2021-03-31	469-953	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	GRANDPRARI	TX
2021-03-31	480-762	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	PHOENIX	AZ
2021-03-31	517-786	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	CHARLOTTE	MI
2021-03-31	539-257	0XXX1XXX3XXX5XXX8XXX9XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OK	119F	CLEVELAND	OK
2021-03-31	562-939	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	ALAMITOS	CA
2021-03-31	602-855	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	PHOENIX	AZ
2021-03-31	605-663	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks →	AIRUS, INC. - SD	580H	HURON	SD
2021-03-31	605-991	0XXX1XXX2XXX3XXX4XXX · 5 holders which blocks →	AIRUS, INC. - SD	580H	MILBANK	SD
2021-03-31	607-407	2XXX4XXX6XXX7XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	LANSING	NY
2021-03-31	607-606	1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	NEWFIELD	NY
2021-03-31	629-910	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - TN	525E	NASHVILLE	TN
2021-03-31	672-388	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Sparwood	—
2021-03-31	708-723	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL	6333	CICERO	IL
2021-03-31	715-981	4XXX which blocks →	BRIGHTSPEED OF NORTHERN WISCONSIN, LLC	0956	MANISHWTRS	WI
2021-03-31	726-203	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	SANANTONIO	TX
2021-03-31	757-792	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - VA	079F	COURTLAND	VA
2021-03-31	762-293	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	TELNYX LLC	073H	THOMSON	GA
2021-03-31	779-855	5XXX which blocks →	TERRA NOVA TELECOM INC.	145J	FORREST	IL
2021-03-31	785-610	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - KS	205F	TOPEKA	KS
2021-03-31	814-780	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	CLEARFIELD	PA
2021-03-31	814-989	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	BRADFORD	PA
2021-03-31	819-270	not yet reported which blocks →	Cooptel	818D	Stoke	—
2021-03-31	859-451	0XXX9XXX · 2 holders which blocks →	TELNYX LLC	073H	WINCHESTER	KY
2021-03-31	865-910	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - TN	525E	KNOXVILLE	TN
2021-03-31	873-465	not yet reported which blocks →	Videotron Ltd.	8306	Notre-Dame-du-Laus	—
2021-03-31	901-810	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - TN	525E	MEMPHIS	TN
2021-03-31	930-233	0XXX1XXX which blocks →	BANDWIDTH.COM CLEC, LLC - IN	105F	BRUCEVILLE	IN
2021-03-31	931-710	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - TN	525E	CROSSVILLE	TN
2021-03-31	989-955	2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	UBLY	MI
2021-03-30	220-210	0XXX1XXX7XXX · 3 holders which blocks →	ONVOY, LLC - OH	464C	NEWCONCORD	OH
2021-03-30	223-256	0–9 XXXall 10 · 7 holders which blocks →	HD CARRIER LLC	321J	DILLSBURG	PA
2021-03-30	224-378	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks →	ONVOY, LLC	224C	LIBERTYVL	IL
2021-03-30	224-379	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC	224C	PARK RIDGE	IL
2021-03-30	224-840	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC	224C	ELGIN	IL
2021-03-30	224-850	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CARY	IL
2021-03-30	252-866	0XXX1XXX2XXX3XXX6XXX7XXX8XXX · 4 holders which blocks →	FRACTEL, LLC	965H	MURFREESBO	NC
2021-03-30	272-344	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	SHOHOLA	PA
2021-03-30	331-341	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC	224C	PLANO	IL
2021-03-30	331-850	1XXX3XXX5XXX8XXX9XXX · 5 holders which blocks →	ONVOY, LLC	224C	BIG ROCK	IL
2021-03-30	339-329	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - MA	892D	MARBLEHEAD	MA
2021-03-30	339-330	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - MA	892D	BRYANTVL	MA

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.