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
2021-05-25	413-766	0–9 XXXall 10 · 2 holders which blocks →	SKYE TELECOM LLC DBA SKYETEL	622J	SPRINGFLD	MA
2021-05-25	432-584	0–9 XXXall 10 · 7 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	SEMINOLE	TX
2021-05-25	469-967	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	GRANDPRARI	TX
2021-05-25	506-771	not yet reported which blocks →	Rogers Communications Canada Inc. (Cable)	743B	Browns Flat	—
2021-05-25	516-875	0–9 XXXall 10 · 3 holders which blocks →	PEERING HUB, INC. - NY	818H	NASSAUZN09	NY
2021-05-25	531-269	0–9 XXXall 10 · 6 holders which blocks →	STRATUS NETWORKS	495J	NORFOLK	NE
2021-05-25	539-262	0–9 XXXall 10 · 7 holders which blocks →	STRATUS NETWORKS	495J	MUSKOGEE	OK
2021-05-25	548-322	not yet reported which blocks →	Rogers Communications Canada Inc. (Cable)	743B	Drumbo	—
2021-05-25	548-330	not yet reported which blocks →	Rogers Communications Canada Inc. (Cable)	743B	Ilderton	—
2021-05-25	548-335	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Mount Forest	—
2021-05-25	585-564	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC- NY	384C	SPENCERPT	NY
2021-05-25	616-661	0XXX1XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	SPARTA	MI
2021-05-25	628-468	0–9 XXXall 10 · 3 holders which blocks →	SKYE TELECOM LLC DBA SKYETEL	622J	SNFC CNTRL	CA
2021-05-25	641-241	0XXX2XXX3XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FONTANELLE	IA
2021-05-25	641-245	0XXX2XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	PRESCOTT	IA
2021-05-25	641-248	2XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	OLLIE	IA
2021-05-25	641-288	2XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	AMUND	IA
2021-05-25	641-382	2XXX3XXX4XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BAILEY	IA
2021-05-25	667-323	1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	QUEENSTOWN	MD
2021-05-25	747-315	0–9 XXXall 10 · 5 holders which blocks →	STRATUS NETWORKS	495J	SNFN SNFN	CA
2021-05-25	769-261	0–9 XXXall 10 · 4 holders which blocks →	STRATUS NETWORKS	495J	JACKSON	MS
2021-05-25	769-499	0XXX1XXX2XXX6XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	WESSON	MS
2021-05-25	769-567	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	MADISON	MS
2021-05-25	769-599	0XXX9XXX · 2 holders which blocks →	FRACTEL, LLC	965H	UTICA	MS
2021-05-25	769-699	0XXX1XXX2XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	PURVIS	MS
2021-05-25	769-799	0XXX1XXX7XXX8XXX9XXX · 3 holders which blocks →	FRACTEL, LLC	965H	POPLARVL	MS
2021-05-25	769-855	0XXX5XXX · 2 holders which blocks →	FRACTEL, LLC	965H	UNION	MS
2021-05-25	769-899	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	NEWTONHKRY	MS
2021-05-25	769-933	0–9 XXXall 10 · 7 holders which blocks →	FRACTEL, LLC	965H	PICAYUNE	MS
2021-05-25	813-790	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	TAMPANTH	FL
2021-05-25	813-791	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	TAMPASTH	FL
2021-05-25	838-248	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	STRATUS NETWORKS	495J	COBLESKILL	NY
2021-05-25	838-249	0XXX1XXX6XXX8XXX9XXX · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	GLOVERSVL	NY
2021-05-25	839-204	0XXX1XXX2XXX3XXX5XXX6XXX7XXX9XXX · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	FAIRFAX	SC
2021-05-25	930-237	0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	POWERTEL KENTUCKY LICENSES, INC.	365C	CORYDON	IN
2021-05-25	934-209	1XXX which blocks →	STRATUS NETWORKS	495J	PECONIC	NY
2021-05-25	979-497	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	KURTEN	TX
2021-05-24	208-671	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	MALTA	ID
2021-05-24	272-299	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	LITTLE MDW	PA
2021-05-24	276-967	0–9 XXXall 10 · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BRISTOL	VA
2021-05-24	314-804	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - MO	093F	MEHLVILLE	MO
2021-05-24	385-408	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAYSVILLE	UT
2021-05-24	406-703	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 7 holders which blocks →	TELNYX LLC	073H	COLUMBUS	MT
2021-05-24	470-813	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	ATLANTA	GA
2021-05-24	470-815	0–9 XXXwhole prefix which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	ATLANTA	GA
2021-05-24	470-838	0–9 XXXwhole prefix which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	ATLANTA	GA
2021-05-24	716-519	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	JAMESTOWN	NY
2021-05-24	769-336	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	FRACTEL, LLC	965H	CRYSTALSPG	MS
2021-05-24	769-348	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	BRANDON	MS
2021-05-24	769-667	0XXX1XXX2XXX8XXX · 4 holders which blocks →	FRACTEL, LLC	965H	LIBERTY	MS

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.