NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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, all time — NPA 336
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 166
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 90
SUNCOM DBA T-MOBILE USA 63
BRIGHTSPEED OF NORTH CAROLINA, LLC 58
NEW CINGULAR WIRELESS PCS, LLC - GA 46
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
— 336-837 5XXX7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J WINSTN SAL NC
— 336-838 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 NOWILKESBO NC
— 336-841 not yet reported which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-847 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
— 336-848 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
— 336-849 4XXX5XXX6XXX8XXX · 4 holders which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 YADKINVL NC
— 336-851 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 GREENSBORO NC
— 336-852 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 GREENSBORO NC
— 336-853 not yet reported which blocks → WINDSTREAM LEXCOM COMMUNICATIONS, LLC 0483 LEXINGTON NC
— 336-854 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 GREENSBORO NC
— 336-855 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 GREENSBORO NC
— 336-856 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 GREENSBORO NC
— 336-857 none assigned yet which blocks → RANDOLPH TEL. MEMBERSHIP CORP. 0496 FARMER NC
— 336-859 6XXX8XXX · 2 holders which blocks → WINDSTREAM NORTH CAROLINA, INC. 0476 DENTON NC
— 336-861 not yet reported which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-862 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 3 holders which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-869 not yet reported which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-870 2XXX3XXX7XXX8XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
— 336-871 4XXX6XXX7XXX8XXX · 3 holders which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 SANDYRIDGE NC
— 336-873 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 SEAGROVE NC
— 336-874 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 STATE ROAD NC
— 336-876 not yet reported which blocks → SKYLINE TEL. MEMBERSHIP CORP. 0501 BALDWIN NC
— 336-877 none assigned yet which blocks → SKYLINE TEL. MEMBERSHIP CORP. 0501 BALDWIN NC
— 336-878 not yet reported which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-879 not yet reported which blocks → RANDOLPH TEL. MEMBERSHIP CORP. 0496 COLERIDGE NC
— 336-880 3XXX4XXX6XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
— 336-881 not yet reported which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-882 not yet reported which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-883 5XXX which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-884 2XXX which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-885 not yet reported which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-886 not yet reported which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-887 not yet reported which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-888 9XXX which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-889 not yet reported which blocks → NORTH STATE TELEPHONE CO. DBA NORTH STATE COMM 0491 HIGH POINT NC
— 336-890 0–9 XXXall 10 · 5 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J GREENSBORO NC
— 336-892 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E JULIAN NC
— 336-896 3XXX9XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 WINSTN SAL NC
— 336-902 none assigned yet which blocks → UNITED STATES CELLULAR - NC 6282 NOWILKESBO NC
— 336-903 5XXX which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 NOWILKESBO NC
— 336-905 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
— 336-906 8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
— 336-907 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
— 336-908 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
— 336-909 6XXX7XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ADVANCE NC
— 336-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NC
— 336-913 not yet reported which blocks → SPOK, INC. 6630 GREENSBORO NC
— 336-917 0XXX8XXX9XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 WINSTN SAL NC
— 336-918 not yet reported which blocks → SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
— 336-921 not yet reported which blocks → WILKES TEL. MEMBERSHIP CORP. 0510 BOOMER NC

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.