NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 26
Rogers Communications Canada Inc. (Wireless) 23
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
— 828-898 not yet reported which blocks → SKYLINE TEL. MEMBERSHIP CORP. 0501 BANNER ELK NC
— 828-899 3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → UNITED STATES CELLULAR - NC 6282 COLUMBUS NC
— 828-901 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 HICKORY NC
— 828-910 not yet reported which blocks → NC
— 828-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NC
— 828-925 6XXX which blocks → UNITED STATES CELLULAR - NC 6282 MARION NC
— 828-926 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 MAGGIE VLY NC
— 828-950 not yet reported which blocks → NC
— 828-952 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ASHEVILLE NC
— 828-958 not yet reported which blocks → NC
— 828-959 not yet reported which blocks → NC
— 828-962 0XXX which blocks → SUNCOM DBA T-MOBILE USA 8645 HICKORY NC
— 828-963 none assigned yet which blocks → SKYLINE TEL. MEMBERSHIP CORP. 0501 WATAUGA NC
— 828-964 not yet reported which blocks → CAROLINA WEST WIRELESS, INC. 5932 WATAUGA NC
— 828-965 not yet reported which blocks → SKYLINE TEL. MEMBERSHIP CORP. 0501 WATAUGA NC
— 828-966 not yet reported which blocks → CITIZENS TEL. CO. 0473 BREVARD NC
— 828-970 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 MAIDEN NC
— 828-974 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 ARDEN NC
— 828-976 not yet reported which blocks → NC
— 828-980 0XXX1XXX6XXX7XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 RUTHEFRDTN NC
— 828-984 not yet reported which blocks → NC
— 828-988 not yet reported which blocks → NC
— 828-991 not yet reported which blocks → PAETEC ITEL, LLC 829J LENOIR NC
— 828-994 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 NEWTON NC
— 830-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX TX
— 830-216 0XXX1XXX3XXX6XXX8XXX · 3 holders which blocks → FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 2154 FLORESVL TX
— 830-217 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 2154 SUTHELDSPG TX
— 830-223 0XXX1XXX2XXX3XXX4XXX7XXX8XXX · 3 holders which blocks → GUADALUPE VALLEY TEL. COOP., INC. 2083 HANCOCK TX
— 830-224 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MATRIX TELECOM, LLC. S/I/I TNCI - TX 7715 PLEASANTON TX
— 830-226 2XXX4XXX7XXX · 3 holders which blocks → GUADALUPE VALLEY TEL. COOP., INC. 2083 SATTLER TX
— 830-227 0XXX2XXX3XXX4XXX7XXX8XXX · 3 holders which blocks → GUADALUPE VALLEY TEL. COOP., INC. 2083 CRANESMILL TX
— 830-228 0XXX2XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → GUADALUPE VALLEY TEL. COOP., INC. 2083 SMITHSOVLY TX
— 830-229 0XXX1XXX2XXX7XXX9XXX · 3 holders which blocks → GUADALUPE VALLEY TEL. COOP., INC. 2083 KENBERG TX
— 830-230 not yet reported which blocks → GUADALUPE VALLEY TEL. COOP., INC. 2083 SABINA TX
— 830-232 not yet reported which blocks → HILL COUNTRY TEL. COOP., INC. 2086 FRIOCANYON TX
— 830-234 not yet reported which blocks → SOUTHWEST TEXAS TEL. CO. 2135 BARKSDALE TX
— 830-236 not yet reported which blocks → GUADALUPE VALLEY TEL. COOP., INC. 2083 WESTHOFF TX
— 830-238 not yet reported which blocks → HILL COUNTRY TEL. COOP., INC. 2086 HUNT TX
— 830-239 0XXX2XXX3XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → SOUTHWESTERN BELL 9533 RUNGE TX
— 830-248 not yet reported which blocks → WINDSTREAM COMMUNICATIONS TELECOM, L.P. - TX 1997 BOERNE TX
— 830-249 not yet reported which blocks → FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 4344 BOERNE TX
— 830-253 0XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 4344 LAVERNIA TX
— 830-254 0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → SOUTHWESTERN BELL 9533 KARNESCITY TX
— 830-256 0XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → SOUTHWESTERN BELL 9533 CAMPBELLTN TX
— 830-257 not yet reported which blocks → WINDSTREAM COMMUNICATIONS KERRVILLE, L.P. 2097 KERRVILLE TX
— 830-258 not yet reported which blocks → WINDSTREAM COMMUNICATIONS KERRVILLE, L.P. 2097 KERRVILLE TX
— 830-260 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 FRIOCANYON TX
— 830-263 3XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GONZALES TX
— 830-264 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SOUTHWESTERN BELL 9533 CHRISTINE TX
— 830-269 not yet reported which blocks → SPOK, INC. 6630 SANANTONIO TX

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.