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
2021-04-16	859-453	0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BUTLER	KY
2021-04-16	878-844	0–9 XXXall 10 · 7 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	INDIANA	PA
2021-04-16	956-637	0–9 XXXall 10 · 4 holders which blocks →	AT&T - LOCAL	7421	RIO HONDO	TX
2021-04-16	971-610	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - OR	750E	PORTLAND	OR
2021-04-15	220-207	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	LANCASTER	OH
2021-04-15	220-208	0–9 XXXall 10 · 4 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	ZANESVILLE	OH
2021-04-15	234-902	0–9 XXXall 10 · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	YOUNGSTOWN	OH
2021-04-15	276-910	0XXX1XXX3XXX which blocks →	ONVOY, LLC - VA	138E	SPENCER	VA
2021-04-15	279-212	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	MICHIGNBAR	CA
2021-04-15	319-422	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	ONVOY, LLC - IA	221F	PARKERSBG	IA
2021-04-15	321-359	0–9 XXXall 10 · 5 holders which blocks →	METROPCS NETWORKS, LLC	899D	TITUSVILLE	FL
2021-04-15	364-209	1XXX2XXX4XXX6XXX8XXX · 3 holders which blocks →	ONVOY, LLC - KY	896E	BRADFODSVL	KY
2021-04-15	364-212	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - KY	896E	JORDAN	KY
2021-04-15	364-220	1XXX3XXX4XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - KY	896E	BEAVER DAM	KY
2021-04-15	364-221	1XXX which blocks →	ONVOY SPECTRUM, LLC	624H	COLUMBUS	KY
2021-04-15	364-232	1XXX which blocks →	ONVOY SPECTRUM, LLC	624H	MAMOTHCAVE	KY
2021-04-15	423-678	0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - TN	525E	ROAN MT	TN
2021-04-15	423-686	2XXX3XXX5XXX6XXX7XXX8XXX which blocks →	ONVOY, LLC - TN	525E	FORK RIDGE	TN
2021-04-15	434-810	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - VA	138E	LYNCHBURG	VA
2021-04-15	484-495	0XXX2XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	WOMELSDORF	PA
2021-04-15	502-399	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	ONVOY, LLC - KY	896E	CHAPLIN	KY
2021-04-15	502-497	0XXX1XXX2XXX3XXX4XXX7XXX8XXX · 5 holders which blocks →	ONVOY, LLC - KY	896E	FINCHVILLE	KY
2021-04-15	502-556	1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	ONVOY, LLC - KY	896E	BLOOMFIELD	KY
2021-04-15	502-788	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - KY	896E	EMINENCE	KY
2021-04-15	502-973	0XXX1XXX2XXX8XXX9XXX · 5 holders which blocks →	ONVOY, LLC - KY	896E	CROPPER	KY
2021-04-15	540-919	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - VA	138E	FREDECKSBG	VA
2021-04-15	561-673	0–9 XXXall 10 · 7 holders which blocks →	METROPCS, INC.	5562	BELLEGLADE	FL
2021-04-15	567-388	0XXX2XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	BLUFFTON	OH
2021-04-15	567-566	0XXX1XXX2XXX5XXX6XXX9XXX · 6 holders which blocks →	FRACTEL, LLC	965H	BEAVERDAM	OH
2021-04-15	567-577	0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	ADARIO	OH
2021-04-15	567-588	0XXX1XXX2XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	ADA	OH
2021-04-15	567-599	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	GENOA	OH
2021-04-15	567-688	0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	FRACTEL, LLC	965H	CHESTERFLD	OH
2021-04-15	567-699	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	ASHLAND	OH
2021-04-15	567-901	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	TOLEDO	OH
2021-04-15	571-910	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - VA	138E	HERNDON	VA
2021-04-15	605-418	0–9 XXXall 10 · 4 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	ABERDEEN	SD
2021-04-15	657-497	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	ANAHEIM	CA
2021-04-15	657-498	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	HUNTITNBCH	CA
2021-04-15	672-980	not yet reported which blocks →	TELUS Mobility	646F	Aldergrove	—
2021-04-15	682-837	0–9 XXXall 10 · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	GRAPEVINE	TX
2021-04-15	743-837	0–9 XXXall 10 · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	HIGH POINT	NC
2021-04-15	743-902	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	GREENSBORO	NC
2021-04-15	769-901	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	JACKSON	MS
2021-04-15	775-902	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	RENO	NV
2021-04-15	828-903	0–9 XXXall 10 · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ASHEVILLE	NC
2021-04-15	856-480	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks →	AT&T - LOCAL	7421	MULLICA HL	NJ
2021-04-15	862-369	0–9 XXXall 10 · 5 holders which blocks →	AT&T - LOCAL	7421	NUTLEY	NJ
2021-04-15	878-236	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	CRIDERSCOR	PA
2021-04-15	910-903	0–9 XXXall 10 · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	WILMINGTON	NC

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.