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
—	907-549	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	PILOT STA	AK
—	907-550	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-551	not yet reported which blocks →	GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION	7785	ELMEDRFAFB	AK
—	907-552	not yet reported which blocks →	GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION	7785	ELMEDRFAFB	AK
—	907-553	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	ATMAUTLUAK	AK
—	907-554	none assigned yet which blocks →	COPPER VALLEY TEL. COOP., INC.	3006	MCCARTHY	AK
—	907-555	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	DIR ASST	AK
—	907-556	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	QUINHAGAK	AK
—	907-557	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	KONGIGANAK	AK
—	907-558	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	SCAMMONBAY	AK
—	907-559	not yet reported which blocks →	ACS OF THE NORTHLAND, INC.	3030	POINTBAKER	AK
—	907-561	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-562	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-563	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-564	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-565	9XXX which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-566	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-567	not yet reported which blocks →	ACS OF THE NORTHLAND, INC.	3030	NINILCHIK	AK
—	907-568	not yet reported which blocks →	ACS OF THE NORTHLAND, INC.	3030	PTALEXANDR	AK
—	907-569	not yet reported which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-570	1XXX2XXX4XXX6XXX7XXX8XXX which blocks →	ACS OF ANCHORAGE, INC.	3000	ANCHORAGE	AK
—	907-571	not yet reported which blocks →	INTERIOR TEL. CO., INC.	3011	ILIAMNA	AK
—	907-573	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	CHENEGABAY	AK
—	907-575	not yet reported which blocks →	GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION	6872	ANCHORAGE	AK
—	907-576	not yet reported which blocks →	ACS OF THE NORTHLAND, INC.	3030	NIKOLSKI	AK
—	907-580	not yet reported which blocks →	GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION	7785	ELMEDRFAFB	AK
—	907-581	not yet reported which blocks →	INTERIOR TEL. CO., INC.	3011	UNALASKA	AK
—	907-582	not yet reported which blocks →	MATANUSKA TEL. ASSN., INC.	3015	CLEAR AFS	AK
—	907-583	not yet reported which blocks →	MATANUSKA TEL. ASSN., INC.	3015	TYONEK	AK
—	907-584	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	RUSSINMSSN	AK
—	907-585	not yet reported which blocks →	ALASCOM, INC. DBA AT&T ALASKA	3027	CLEAR AFS	AK
—	907-586	not yet reported which blocks →	ACS OF ALASKA, INC.	3022	JUNEAU	AK
—	907-587	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	ARCTIC VLG	AK
—	907-588	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	KWIGILLNGK	AK
—	907-589	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	NAPAKIAK	AK
—	907-590	not yet reported which blocks →	GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION	6872	FAIRBANKS	AK
—	907-591	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	MOUNTANVLG	AK
—	907-592	not yet reported which blocks →	ADAK EAGLE ENTERPRISE LLC DBA ADAK TEL UTILITY	989C	ADKUSNVLST	AK
—	907-594	not yet reported which blocks →	ALASKA TELEPHONE COMPANY	3017	EDNA BAY	AK
—	907-595	7XXX which blocks →	INTERIOR TEL. CO., INC.	3011	COOPER LDG	AK
—	907-596	none assigned yet which blocks →	BRISTOL BAY TEL. COOP., INC.	3003	KOLIGANEK	AK
—	907-598	not yet reported which blocks →	GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION	6872	SOLDOTNA	AK
—	907-599	none assigned yet which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	COOPER LDG	AK
—	907-600	0–9 XXXall 10 · 3 holders which blocks →	TELNYX LLC	073H	ANCHORAGE	AK
—	907-611	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	AK
—	907-622	not yet reported which blocks →	MATANUSKA TEL. ASSN., INC.	3015	EAGLERIVER	AK
—	907-624	not yet reported which blocks →	UNITED-KUC, INC. - AK	1449	UNALAKLEET	AK
—	907-628	not yet reported which blocks →	UNITED UTILITIES, INC.	3023	BEAVER	AK
—	907-629	not yet reported which blocks →	ALASKA TELEPHONE COMPANY	3017	NAUKATIBAY	AK
—	907-633	not yet reported which blocks →	ARCTIC SLOPE TEL. ASSN. COOP., INC.	3001	ATQASUK	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.