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
2021-04-14	912-901	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	SAVANNAH	GA
2021-04-14	913-398	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - KS	205F	TONGANOXIE	KS
2021-04-14	938-902	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	HUNTSVILLE	AL
2021-04-14	940-901	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	WICHITAFLS	TX
2021-04-14	959-837	0–9 XXXall 10 · 7 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	NORWICH	CT
2021-04-14	989-902	0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	SAGINAW	MI
2021-04-13	272-382	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	CARBONDALE	PA
2021-04-13	308-910	0XXX1XXX5XXX · 2 holders which blocks →	ALLO COMMUNICATIONS LLC	907K	GRAND IS	NE
2021-04-13	314-661	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MO	993E	SAPPINGTON	MO
2021-04-13	385-370	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	OGDEN	UT
2021-04-13	385-384	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	PROVO	UT
2021-04-13	423-673	0–9 XXXall 10 · 3 holders which blocks →	PAETEC ITEL, LLC	829J	JOHNSON CY	TN
2021-04-13	423-674	1XXX2XXX3XXX4XXX5XXX8XXX · 2 holders which blocks →	ONVOY, LLC - TN	525E	DAYTON	TN
2021-04-13	423-675	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - TN	525E	JASPER	TN
2021-04-13	423-679	1XXX3XXX4XXX5XXX9XXX · 4 holders which blocks →	ONVOY, LLC - TN	525E	OOLTEWAH	TN
2021-04-13	423-904	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CHATTNOOGA	TN
2021-04-13	423-905	0–9 XXXall 10 · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	JOHNSON CY	TN
2021-04-13	440-694	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	ASHTABULA	OH
2021-04-13	447-437	0XXX3XXX4XXX7XXX · 3 holders which blocks →	ONVOY, LLC	224C	BASCO	IL
2021-04-13	447-440	2XXX4XXX · 2 holders which blocks →	ONVOY, LLC	224C	BOWEN	IL
2021-04-13	447-441	1XXX4XXX · 2 holders which blocks →	ONVOY, LLC	224C	ELVASTON	IL
2021-04-13	447-457	0XXX4XXX7XXX · 3 holders which blocks →	ONVOY, LLC	224C	SUTTER	IL
2021-04-13	479-901	0–9 XXXall 10 · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	FORT SMITH	AR
2021-04-13	513-838	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	CINCINNATI	OH
2021-04-13	515-435	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - IA	221F	ROLAND	IA
2021-04-13	531-810	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - NE	549E	LINCOLN	NE
2021-04-13	531-910	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - NE	549E	OMAHA	NE
2021-04-13	561-778	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - FL	937C	BOYNTONBCH	FL
2021-04-13	567-927	0XXX3XXX · 2 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	SYCAMORE	OH
2021-04-13	567-981	0XXX which blocks →	TWC IP ENABLED SERVICES, LLC	793K	MCUTCHENVL	OH
2021-04-13	585-570	0XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	FRIENDSHIP	NY
2021-04-13	585-686	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	HOLLEY	NY
2021-04-13	585-744	6XXX7XXX9XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	JAVA	NY
2021-04-13	585-767	2XXX6XXX7XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	FRANKLINVL	NY
2021-04-13	585-835	5XXX6XXX8XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	KENDALL	NY
2021-04-13	640-204	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	CRANBURY	NJ
2021-04-13	641-643	0XXX2XXX3XXX4XXX6XXX9XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	MALCOM	IA
2021-04-13	667-310	0–9 XXXall 10 · 5 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	PARKVILLE	MD
2021-04-13	667-315	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MD	071F	BEL AIR	MD
2021-04-13	669-688	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	SARATOGA	CA
2021-04-13	669-788	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	SUNNYVALE	CA
2021-04-13	680-225	0XXX1XXX2XXX3XXX5XXX6XXX8XXX · 3 holders which blocks →	ONVOY, LLC- NY	384C	MINOA	NY
2021-04-13	689-699	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	ST CLOUD	FL
2021-04-13	689-837	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	ORLANDO	FL
2021-04-13	716-546	0–9 XXXall 10 · 6 holders which blocks →	ONVOY SPECTRUM, LLC	624H	GASPORT	NY
2021-04-13	716-586	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	LANCASTER	NY
2021-04-13	716-726	1XXX2XXX3XXX5XXX6XXX7XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	LEWISTON	NY
2021-04-13	716-746	2XXX3XXX6XXX7XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	LITTLE VLY	NY
2021-04-13	716-756	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	LOCKPORT	NY
2021-04-13	725-599	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	LAS VEGAS	NV

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.