Recent prefix assignments

338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026

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. 38

NEW CINGULAR WIRELESS PCS, LLC - IL 28

ONVOY, LLC - CA 26

NEW CINGULAR WIRELESS PCS, LLC - DC 26

ONVOY, LLC - NJ 18

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
—	907-243	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-244	not yet reported which blocks →	GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION	6872	ANCHORAGE	AK
—	907-245	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-246	not yet reported which blocks →	BRISTOL BAY TEL. COOP., INC.	3003	KINGSALMON	AK
—	907-247	not yet reported which blocks →	KETCHIKAN PUBLIC UTILITIES	3013	KETCHIKAN	AK
—	907-248	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-249	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-250	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	ANCHORAGE	AK
—	907-252	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	SOLDOTNA	AK
—	907-253	not yet reported which blocks →	COPPER VALLEY CELLULAR	6292	CORDOVA	AK
—	907-254	not yet reported which blocks →	GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION	6872	KETCHIKAN	AK
—	907-255	not yet reported which blocks →	COPPER VALLEY CELLULAR	6292	VALDEZ	AK
—	907-256	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	TUNTUTULIK	AK
—	907-257	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-258	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-259	not yet reported which blocks →	COPPER VALLEY CELLULAR	6292	GLENNALLEN	AK
—	907-260	not yet reported which blocks →	ACS OF THE NORTHLAND, INC.	3030	SOLDOTNA	AK
—	907-261	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-262	not yet reported which blocks →	ACS OF THE NORTHLAND, INC.	3030	SOLDOTNA	AK
—	907-263	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-264	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-265	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-266	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-267	9XXX which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-269	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-270	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-271	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-272	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-273	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-274	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-275	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-276	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-277	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-278	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-279	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-280	7XXX8XXX9XXX which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-281	not yet reported which blocks →	ACS OF THE NORTHLAND, INC.	3030	ENGLISHBAY	AK
—	907-282	not yet reported which blocks →	ACS OF THE NORTHLAND, INC.	3030	KAKHONAK	AK
—	907-283	not yet reported which blocks →	ACS OF THE NORTHLAND, INC.	3030	KENAI	AK
—	907-284	not yet reported which blocks →	ACS OF THE NORTHLAND, INC.	3030	PORTGRAHAM	AK
—	907-285	not yet reported which blocks →	ALASKA TELEPHONE COMPANY	3017	HYDABURG	AK
—	907-286	not yet reported which blocks →	ACS OF THE NORTHLAND, INC.	3030	OLD HARBOR	AK
—	907-287	none assigned yet which blocks →	BRISTOL BAY TEL. COOP., INC.	3003	LEVELOCK	AK
—	907-288	8XXX which blocks →	TELALASKA CELLULAR, INC.	588F	MOOSE PASS	AK
—	907-289	not yet reported which blocks →	NUSHAGAK ELECTRIC & TELEPHONE COOPERATIVE, INC.	3018	MANOKOTAK	AK
—	907-291	3XXX which blocks →	COPPER VALLEY TEL. COOP., INC.	3006	MENTASTA	AK
—	907-293	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	NIKOLAI	AK
—	907-294	not yet reported which blocks →	ACS OF THE NORTHLAND, INC.	3030	NONDALTON	AK
—	907-295	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	LIVENGOOD	AK
—	907-296	not yet reported which blocks →	ACS OF THE NORTHLAND, INC.	3030	HALIBUT CV	AK

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.