NumberResearch Membership · Data 09/21/2026

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
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 906-829 0XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → HD CARRIER LLC 321J MARQUETTE MI
— 906-831 not yet reported which blocks → RANGE TELECOMMUNICATIONS 6695 SMOKYLAKES MI
— 906-832 not yet reported which blocks → RANGE TELECOMMUNICATIONS 6695 ST IGNACE MI
— 906-833 not yet reported which blocks → RANGE TELECOMMUNICATIONS 6695 STEPHENSON MI
— 906-842 not yet reported which blocks → UPPER PENINSULA TEL. CO. 0732 LK GOGEBIC MI
— 906-847 1XXX2XXX4XXX5XXX7XXX · 5 holders which blocks → MICHIGAN BELL TEL CO 9323 MACKINACIS MI
— 906-852 not yet reported which blocks → MIDWAY TEL. CO. 0711 TROUTCREEK MI
— 906-863 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 MENOMINEE MI
— 906-864 none assigned yet which blocks → MICHIGAN BELL TEL CO 9323 MENOMINEE MI
— 906-875 1XXX2XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → MICHIGAN BELL TEL CO 9323 CRYSTALFLS MI
— 906-876 not yet reported which blocks → HIAWATHA TEL. CO. 0713 HULBERT MI
— 906-883 not yet reported which blocks → ONTONAGON COUNTY TEL. CO. 0717 MASS MI
— 906-884 not yet reported which blocks → ONTONAGON COUNTY TEL. CO. 0717 ONTONAGON MI
— 906-885 not yet reported which blocks → ONTONAGON COUNTY TEL. CO. 0717 WHITE PINE MI
— 906-886 not yet reported which blocks → ONTONAGON COUNTY TEL. CO. 0717 ROCKLAND MI
— 906-892 not yet reported which blocks → CHATHAM TEL. CO. 0685 AU TRAIN MI
— 906-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX MI
— 906-919 not yet reported which blocks → RANGE TELECOMMUNICATIONS 6695 WATTON MI
— 906-932 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 IRONWOOD MI
— 906-942 not yet reported which blocks → CHATHAM TEL. CO. 0685 SKANDIA MI
— 906-950 not yet reported which blocks → MI
— 906-958 not yet reported which blocks → MI
— 906-959 not yet reported which blocks → MI
— 906-971 not yet reported which blocks → RANGE TELECOMMUNICATIONS 6695 GLADSTONE MI
— 906-972 not yet reported which blocks → RANGE TELECOMMUNICATIONS 6695 FENCERIVER MI
— 906-973 not yet reported which blocks → RANGE TELECOMMUNICATIONS 6695 MARQUETTE MI
— 906-976 not yet reported which blocks → MI
— 906-988 not yet reported which blocks → ONTONAGON COUNTY TEL. CO. 0717 EWEN MI
— 907-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AK
— 907-221 not yet reported which blocks → UNITED UTILITIES, INC. 3023 BIRCHCREEK AK
— 907-222 not yet reported which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 ANCHORAGE AK
— 907-223 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANCHORAGE AK
— 907-224 not yet reported which blocks → INTERIOR TEL. CO., INC. 3011 SEWARD AK
— 907-225 not yet reported which blocks → KETCHIKAN PUBLIC UTILITIES 3013 KETCHIKAN AK
— 907-226 not yet reported which blocks → ACS OF THE NORTHLAND, INC. 3030 HOMER AK
— 907-227 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANCHORAGE AK
— 907-228 not yet reported which blocks → KETCHIKAN PUBLIC UTILITIES 3013 KETCHIKAN AK
— 907-229 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANCHORAGE AK
— 907-230 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANCHORAGE AK
— 907-232 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 WASILLA AK
— 907-233 not yet reported which blocks → ACS OF THE NORTHLAND, INC. 3030 EGEGIK AK
— 907-234 not yet reported which blocks → ACS OF THE NORTHLAND, INC. 3030 SELDOVIA AK
— 907-235 not yet reported which blocks → ACS OF THE NORTHLAND, INC. 3030 HOMER AK
— 907-236 not yet reported which blocks → NUSHAGAK ELECTRIC & TELEPHONE COOPERATIVE, INC. 3018 EKUK AK
— 907-237 not yet reported which blocks → UNITED UTILITIES, INC. 3023 NEWTOK AK
— 907-238 not yet reported which blocks → UNITED UTILITIES, INC. 3023 ALAKANUK AK
— 907-239 not yet reported which blocks → ACS OF THE NORTHLAND, INC. 3030 ELFIN COVE AK
— 907-240 not yet reported which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 6872 ANCHORAGE AK
— 907-241 not yet reported which blocks → ACS OF THE NORTHLAND, INC. 3030 KARLUK AK
— 907-242 not yet reported which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 6872 ANCHORAGE 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.