NumberResearch Membership · Data 09/29/2026

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
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 603-843 5XXX6XXX7XXX8XXX · 3 holders which blocks → FREEDOM RING COMMUNICATIONS, LLC 8468 NEWPORT NH
— 603-845 1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J DERRY NH
— 603-846 2XXX6XXX8XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 TWIN MT NH
— 603-847 0XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 SULLIVAN NH
— 603-848 none assigned yet which blocks → UNITED STATES CELLULAR - NH 6290 CONCORD NH
— 603-851 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → BELL ATLANTIC MOBILE, INC 6386 MANCHESTER NH
— 603-852 1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 KEENE NH
— 603-853 2XXX7XXX which blocks → FREEDOM RING COMMUNICATIONS, LLC 8468 WOODSVILLE NH
— 603-856 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J CONCORD NH
— 603-858 7XXX8XXX which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 MANCHESTER NH
— 603-859 1XXX5XXX8XXX · 2 holders which blocks → UNION TEL. CO. 0049 NEW DURHAM NH
— 603-860 not yet reported which blocks → BELL ATLANTIC MOBILE, INC 6386 MANCHESTER NH
— 603-861 2XXX3XXX6XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 7778 TAMWORTH NH
— 603-863 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NEWPORT NH
— 603-864 0XXX6XXX8XXX9XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NASHUA NH
— 603-865 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NEWPORT NH
— 603-866 2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 DOVER NH
— 603-867 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANCHESTER NH
— 603-868 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 DURHAM NH
— 603-869 0XXX4XXX6XXX7XXX8XXX · 5 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 BETHLEHEM NH
— 603-870 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 SALEM NH
— 603-871 2XXX3XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NH 4017 SANBORNVL NH
— 603-873 0XXX8XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NH 4017 SUNAPEE NH
— 603-874 1XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MONROE NH
— 603-875 8XXX which blocks → UNION TEL. CO. 0049 ALTON NH
— 603-876 2XXX5XXX6XXX8XXX · 4 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 MARLBOROGH NH
— 603-878 5XXX7XXX8XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 GREENVILLE NH
— 603-879 0XXX1XXX · 2 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NASHUA NH
— 603-880 2XXX which blocks → TELNYX LLC 073H NASHUA NH
— 603-881 6XXX which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NASHUA NH
— 603-882 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NASHUA NH
— 603-883 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NASHUA NH
— 603-884 0XXX1XXX2XXX6XXX7XXX9XXX · 3 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NASHUA NH
— 603-885 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NASHUA NH
— 603-886 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NASHUA NH
— 603-887 not yet reported which blocks → GRANITE STATE TEL., INC. 0039 CHESTER NH
— 603-888 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NASHUA NH
— 603-889 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NASHUA NH
— 603-890 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 SALEM NH
— 603-891 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NASHUA NH
— 603-892 2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
— 603-893 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 SALEM NH
— 603-894 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 SALEM NH
— 603-895 7XXX which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 RAYMOND NH
— 603-896 0XXX1XXX2XXX3XXX4XXX6XXX9XXX · 6 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 SALEM NH
— 603-897 1XXX5XXX9XXX · 2 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NASHUA NH
— 603-898 not yet reported which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 SALEM NH
— 603-899 0XXX7XXX8XXX · 2 holders which blocks → CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 RINDGE NH
— 603-903 0–9 XXXall 10 · 4 holders which blocks → BELL ATLANTIC MOBILE, INC 6386 KEENE NH
— 603-910 0XXX2XXX5XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J HAMPTON NH

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.