Recent prefix assignments

347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026

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 28

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 23

ONVOY, LLC - CA 19

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

Quick find in this area code:

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
—	564-959	not yet reported which blocks →				WA
—	564-976	not yet reported which blocks →				WA
—	567-207	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	TIFFIN	OH
—	567-211	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	OH
—	567-213	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	BOWLNGGREN	OH
—	567-215	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	ASHLAND	OH
—	567-244	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	NORWALK	OH
—	567-247	1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX which blocks →	TWC IP ENABLED SERVICES, LLC	793K	MANSFIELD	OH
—	567-248	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	ATTICA	OH
—	567-251	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	FINDLAY	OH
—	567-252	2XXX8XXX · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	MARBLEHEAD	OH
—	567-253	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	KELLEYS IS	OH
—	567-254	3XXX8XXX · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	PUT IN BAY	OH
—	567-255	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	FREMONT	OH
—	567-256	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	SANDUSKY	OH
—	567-257	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	UPSANDUSKY	OH
—	567-258	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	TIFFIN	OH
—	567-261	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	ASHLAND	OH
—	567-262	6XXX8XXX · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	OAK HARBOR	OH
—	567-263	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	WILLARD	OH
—	567-265	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	HURON	OH
—	567-266	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	BELLEVUE	OH
—	567-269	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	CLYDE	OH
—	567-270	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	LOUDONVL	OH
—	567-273	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	NEWWSHNGTN	OH
—	567-284	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	ASHLAND	OH
—	567-311	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	OH
—	567-321	0–9 XXXall 10 · 7 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	NEWWSHNGTN	OH
—	567-337	0–9 XXXall 10 · 7 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BRYAN	OH
—	567-338	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - OH	464C	BUCYRUS	OH
—	567-345	0–9 XXXall 10 · 5 holders which blocks →	TELNYX LLC	073H	MANSFIELD	OH
—	567-354	0XXX1XXX2XXX4XXX5XXX8XXX · 4 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	CONVOY	OH
—	567-361	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	NEWWNCHSTR	OH
—	567-363	0–9 XXXall 10 · 5 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	HOLLAND	OH
—	567-392	0–9 XXXall 10 · 2 holders which blocks →	NUSO, LLC	732J	LIMA	OH
—	567-411	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	OH
—	567-442	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	TELNYX LLC	073H	FOSTORIA	OH
—	567-497	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	CHESTERVL	OH
—	567-511	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	OH
—	567-522	0XXX1XXX2XXX5XXX7XXX8XXX · 4 holders which blocks →	TELNYX LLC	073H	MARBLEHEAD	OH
—	567-525	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	FINDLAY	OH
—	567-555	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	DIR ASST	OH
—	567-611	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	OH
—	567-661	not yet reported which blocks →	ONVOY, LLC - OH	464C	TOLEDO	OH
—	567-666	0–9 XXXall 10 · 5 holders which blocks →	VONAGE AMERICA LLC	197D	TOLEDO	OH
—	567-686	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	TOLEDO	OH
—	567-700	not yet reported which blocks →				OH
—	567-711	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	OH
—	567-811	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	OH
—	567-867	not yet reported which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	SANDUSKY	OH

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.