NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

1 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, last 30 days — NPA 940
8X8, INC. 1
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
— 940-725 not yet reported which blocks → GRANDE COMMUNICATIONS NETWORKS, INC. - TX 7670 BARTONVL TX
— 940-726 not yet reported which blocks → MUENSTER TELEPHONE CORP. OF TEXAS DBA NORTEX COMM 2116 VALLEYVIEW TX
— 940-727 none assigned yet which blocks → MUENSTER TELEPHONE CORP. OF TEXAS DBA NORTEX COMM 2116 MYRA TX
— 940-728 not yet reported which blocks → GRANDE COMMUNICATIONS NETWORKS, INC. - TX 7670 BARTONVL TX
— 940-730 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → SOUTHWESTERN BELL 9533 WICHITAFLS TX
— 940-732 2XXX3XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → UNITED STATES CELLULAR - TX 6271 CHILDRESS TX
— 940-733 none assigned yet which blocks → UNITED STATES CELLULAR - TX 6271 WICHITAFLS TX
— 940-735 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DENTON TX
— 940-736 none assigned yet which blocks → MUENSTER TELEPHONE CORP. OF TEXAS DBA NORTEX COMM 2116 MYRA TX
— 940-743 none assigned yet which blocks → VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW 1163 ROCHESTER TX
— 940-748 1XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → BRIGHTSPEED OF TEXAS, INC. 2114 BOONSVILLE TX
— 940-757 1XXX2XXX6XXX7XXX · 3 holders which blocks → TERRA NOVA TELECOM INC. 145J WICHITAFLS TX
— 940-759 not yet reported which blocks → MUENSTER TELEPHONE CORP. OF TEXAS DBA NORTEX COMM 2116 MUENSTER TX
— 940-761 not yet reported which blocks → SOUTHWESTERN BELL 9533 WICHITAFLS TX
— 940-763 none assigned yet which blocks → SOUTHWESTERN BELL 9533 WICHITAFLS TX
— 940-764 1XXX9XXX which blocks → SOUTHWESTERN BELL 9533 WICHITAFLS TX
— 940-765 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DENTON TX
— 940-766 not yet reported which blocks → SOUTHWESTERN BELL 9533 WICHITAFLS TX
— 940-767 not yet reported which blocks → SOUTHWESTERN BELL 9533 WICHITAFLS TX
— 940-768 none assigned yet which blocks → MUENSTER TELEPHONE CORP. OF TEXAS DBA NORTEX COMM 2116 ROSSTON TX
— 940-769 6XXX which blocks → BRIGHTSPEED OF EASTERN TEXAS, INC. 2084 SANTO TX
— 940-779 8XXX which blocks → BRIGHTSPEED OF EASTERN TEXAS, INC. 2084 PSMKNGDMLK TX
— 940-781 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WICHITAFLS TX
— 940-782 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WICHITAFLS TX
— 940-783 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 DENTON TX
— 940-784 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 ARGYLE TX
— 940-798 5XXX6XXX8XXX9XXX · 3 holders which blocks → BRIGHTSPEED OF EASTERN TEXAS, INC. 2084 PERRIN TX
— 940-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX TX
— 940-825 9XXX which blocks → TEXAS WINDSTREAM, LLC 2153 NOCONA TX
— 940-827 not yet reported which blocks → GRANDE COMMUNICATIONS NETWORKS, INC. - TX 7670 DENTON TX
— 940-828 0XXX1XXX3XXX4XXX6XXX8XXX9XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F BARTONVL TX
— 940-838 3XXX9XXX · 2 holders which blocks → UNITED STATES CELLULAR - TX 6271 MEDICNMOND TX
— 940-839 none assigned yet which blocks → SANTA ROSA TEL COOP INC 2141 MEDICNMOND TX
— 940-841 5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → SOUTHWESTERN BELL 9533 BOWIE TX
— 940-845 1XXX3XXX7XXX9XXX · 3 holders which blocks → BRIGHTSPEED OF TEXAS, INC. 2114 SUNSET TX
— 940-846 not yet reported which blocks → BRAZOS TEL. COOP., INC. 2041 NEWCASTLE TX
— 940-849 not yet reported which blocks → VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW 1163 THROCKMOTN TX
— 940-851 9XXX which blocks → SOUTHWESTERN BELL 9533 WICHITAFLS TX
— 940-852 0XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → SOUTHWESTERN BELL 9533 CHILLICOTH TX
— 940-855 none assigned yet which blocks → SOUTHWESTERN BELL 9533 WICHITAFLS TX
— 940-859 0XXX2XXX7XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 MINERLWLLS TX
— 940-862 none assigned yet which blocks → BRAZOS TEL. COOP., INC. 2041 ELBERT TX
— 940-864 not yet reported which blocks → VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW 1163 HASKELL TX
— 940-872 not yet reported which blocks → SOUTHWESTERN BELL 9533 BOWIE TX
— 940-873 none assigned yet which blocks → BRAZOS TEL. COOP., INC. 2041 ORTH TX
— 940-880 not yet reported which blocks → SOUTHWESTERN BELL 9533 WICHITAFLS TX
— 940-886 none assigned yet which blocks → SANTA ROSA TEL COOP INC 2141 OKLAUNION TX
— 940-887 none assigned yet which blocks → SANTA ROSA TEL COOP INC 2141 WHCY ODELL TX
— 940-888 not yet reported which blocks → VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW 1163 SEYMOUR TX
— 940-889 not yet reported which blocks → SANTA ROSA TELEPHONE COOPERATIVE, INC. 4046 SEYMOUR TX

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.