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
2021-06-11	747-309	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	CANOGAPARK	CA
2021-06-11	765-687	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - IN	097D	PENDLETON	IN
2021-06-11	786-689	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2021-06-11	980-363	0–9 XXXall 10 · 4 holders which blocks →	SUNCOM DBA T-MOBILE USA	8645	GASTONIA	NC
2021-06-10	234-488	0XXX1XXX2XXX4XXX8XXX · 3 holders which blocks →	FRACTEL, LLC	965H	LAKEMILTON	OH
2021-06-10	234-499	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	LISBON	OH
2021-06-10	234-577	0XXX1XXX3XXX5XXX6XXX7XXX9XXX · 6 holders which blocks →	FRACTEL, LLC	965H	WELLSVILLE	OH
2021-06-10	234-588	0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 6 holders which blocks →	FRACTEL, LLC	965H	NEWWATERFD	OH
2021-06-10	234-786	0XXX1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	HUBBARD	OH
2021-06-10	234-842	0XXX1XXX2XXX5XXX6XXX · 4 holders which blocks →	FRACTEL, LLC	965H	GREENE	OH
2021-06-10	234-877	0–9 XXXall 10 · 4 holders which blocks →	NUSO, LLC	478J	NILES	OH
2021-06-10	234-899	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	CORTLAND	OH
2021-06-10	234-946	0–9 XXXall 10 · 8 holders which blocks →	FRACTEL, LLC	965H	COLUMBIANA	OH
2021-06-10	234-977	0XXX1XXX3XXX7XXX · 4 holders which blocks →	FRACTEL, LLC	965H	LOWELLVL	OH
2021-06-10	272-636	0–9 XXXall 10 · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	DINGMAFRRY	PA
2021-06-10	346-473	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	HOUSTON	TX
2021-06-10	346-475	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	HOUSTON	TX
2021-06-10	605-405	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - SD	162G	ARLINGTON	SD
2021-06-10	620-502	0XXX1XXX8XXX · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - KS	986E	HAVEN	KS
2021-06-10	657-501	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	HUNTITNBCH	CA
2021-06-10	657-521	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	ANAHEIM	CA
2021-06-10	726-205	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	SANANTONIO	TX
2021-06-10	726-206	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	SANANTONIO	TX
2021-06-10	779-327	0XXX7XXX · 2 holders which blocks →	ONVOY, LLC	224C	WARREN	IL
2021-06-10	779-328	0XXX8XXX · 2 holders which blocks →	ONVOY, LLC	224C	HANOVER	IL
2021-06-10	779-329	0XXX2XXX3XXX5XXX6XXX9XXX · 4 holders which blocks →	T-MOBILE USA, INC.	6529	MENDOTA	IL
2021-06-10	779-332	1XXX2XXX3XXX4XXX · 3 holders which blocks →	ONVOY, LLC	224C	DURAND	IL
2021-06-10	785-578	0XXX1XXX2XXX6XXX8XXX · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - KS	8995	PLAINVILLE	KS
2021-06-10	786-784	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2021-06-10	878-240	0–9 XXXall 10 · 4 holders which blocks →	VONAGE AMERICA LLC	197D	CONNELLSVL	PA
2021-06-10	904-684	0–9 XXXwhole prefix which blocks →	POWERTEL JACKSONVILLE LICENSES, INC.	7472	JACKSONVL	FL
2021-06-10	940-860	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ARGYLE	TX
2021-06-10	945-255	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ANNA	TX
2021-06-10	945-355	3XXX5XXX9XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BRISTOL	TX
2021-06-09	224-393	0–9 XXXwhole prefix which blocks →	ONVOY, LLC	224C	HUNTLEY	IL
2021-06-09	272-274	2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks →	ONVOY, LLC - PA	547E	CANTON	PA
2021-06-09	305-337	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	KEYS	FL
2021-06-09	316-397	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - KS	205F	GODDARD	KS
2021-06-09	326-336	0–9 XXXall 10 · 7 holders which blocks →	FRACTEL, LLC	965H	VANDALIA	OH
2021-06-09	326-348	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	SARDINIA	OH
2021-06-09	326-667	0XXX1XXX7XXX8XXX · 4 holders which blocks →	FRACTEL, LLC	965H	FT LORAMIE	OH
2021-06-09	331-273	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC	224C	LEMONT	IL
2021-06-09	346-472	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	BAYTOWN	TX
2021-06-09	352-722	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks →	ONVOY, LLC - FL	937C	BRONSON	FL
2021-06-09	405-723	0–9 XXXall 10 · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BETHANY	OK
2021-06-09	425-537	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BOTHELL	WA
2021-06-09	447-204	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	LA HARPE	IL
2021-06-09	479-440	0XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	CLARKSVL	AR
2021-06-09	516-904	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NASSAUZN05	NY
2021-06-09	561-680	0–9 XXXall 10 · 4 holders which blocks →	VONAGE AMERICA LLC	197D	BOCA RATON	FL

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.