NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
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
— 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
— 336-922 not yet reported which blocks → WINDSTREAM NORTH CAROLINA, INC. 0476 OLDTOWN NC
— 336-923 4XXX5XXX7XXX8XXX · 3 holders which blocks → WINDSTREAM NORTH CAROLINA, INC. 0476 OLDTOWN NC
— 336-924 not yet reported which blocks → WINDSTREAM NORTH CAROLINA, INC. 0476 OLDTOWN NC
— 336-926 not yet reported which blocks → SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
— 336-927 not yet reported which blocks → CAROLINA WEST WIRELESS, INC. 5932 LOMAX NC
— 336-931 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 GREENSBORO NC
— 336-932 8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 REIDSVILLE NC
— 336-936 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 MOCKSVILLE NC
— 336-939 0XXX1XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 RUFFIN NC
— 336-940 0XXX1XXX9XXX which blocks → YADKIN VALLEY TEL. MEMBERSHIP CORP. 0511 ADVANCE NC
— 336-941 0XXX1XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → YADKIN VALLEY TEL. MEMBERSHIP CORP. 0511 ADVANCE NC
— 336-945 not yet reported which blocks → WINDSTREAM NORTH CAROLINA, INC. 0476 LEWISVILLE NC
— 336-946 1XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → WINDSTREAM NORTH CAROLINA, INC. 0476 LEWISVILLE NC
— 336-950 not yet reported which blocks → NC
— 336-951 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 REIDSVILLE NC
— 336-952 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 XXXXXXXXXX NC
— 336-953 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ASHEBORO NC
— 336-954 0XXX2XXX3XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 GREENSBORO NC
— 336-956 not yet reported which blocks → WINDSTREAM LEXCOM COMMUNICATIONS, LLC 0483 LEXINGTON NC
— 336-957 none assigned yet which blocks → WILKES TEL. MEMBERSHIP CORP. 0510 LOMAX NC
— 336-958 not yet reported which blocks → NC
— 336-959 not yet reported which blocks → NC
— 336-961 0XXX1XXX4XXX9XXX · 2 holders which blocks → YADKIN VALLEY TEL. MEMBERSHIP CORP. 0511 FORBUSH NC
— 336-963 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ASHEBORO NC
— 336-964 2XXX3XXX7XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ASHEBORO NC
— 336-969 7XXX which blocks → WINDSTREAM NORTH CAROLINA, INC. 0476 RURAL HALL NC
— 336-970 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 WINSTN SAL NC
— 336-971 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
— 336-972 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
— 336-973 not yet reported which blocks → WILKES TEL. MEMBERSHIP CORP. 0510 CHAMPION NC
— 336-976 not yet reported which blocks → NC
— 336-977 not yet reported which blocks → CAROLINA WEST WIRELESS, INC. 5932 BALDWIN NC
— 336-978 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
— 336-981 4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J NOWILKESBO NC
— 336-982 not yet reported which blocks → SKYLINE TEL. MEMBERSHIP CORP. 0501 NATHANSCRK NC
— 336-983 not yet reported which blocks → WINDSTREAM NORTH CAROLINA, INC. 0476 KING NC
— 336-984 none assigned yet which blocks → WILKES TEL. MEMBERSHIP CORP. 0510 CLINGMAN NC
— 336-985 1XXX6XXX7XXX8XXX · 3 holders which blocks → WINDSTREAM NORTH CAROLINA, INC. 0476 KING NC
— 336-986 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.