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
2019-05-17 772-238 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C STUART FL
2019-05-17 810-331 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - MI 991E ALMONT MI
2019-05-17 813-565 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C TAMPAEST FL
2019-05-17 813-819 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C TAMPASTH FL
2019-05-17 910-812 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NC 638E LUMBERTON NC
2019-05-17 914-370 0–9 XXXall 10 · 7 holders which blocks → CSC WIRELESS, LLC 425J WSCHSTZN01 NY
2019-05-16 251-293 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BELLEFONTN AL
2019-05-16 253-800 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H TACOMA WA
2019-05-16 279-300 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CA 649C SCRM MAIN CA
2019-05-16 318-690 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - LA 153F MONROE LA
2019-05-16 351-203 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - MA 990E TYNGSBORO MA
2019-05-16 639-956 not yet reported which blocks → TELUS Integrated Communications 2782 Gull Lake —
2019-05-16 639-957 not yet reported which blocks → TELUS Integrated Communications 2782 Maple Creek —
2019-05-16 672-888 not yet reported which blocks → Fibernetics Corporation 464D Vancouver —
2019-05-16 774-390 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - MA 990E SOUTHGATE MA
2019-05-16 775-732 5XXX which blocks → FRACTEL, LLC 965H STATELINE NV
2019-05-16 785-800 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H OTTAWA KS
2019-05-16 785-999 0XXX1XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H TOPEKA KS
2019-05-16 858-293 0–9 XXXall 10 · 5 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SNDG MRMS CA
2019-05-16 937-749 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F PIQUA OH
2019-05-16 952-219 0–9 XXXall 10 · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2019-05-16 954-686 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - FL 937C FTLAUDERDL FL
2019-05-15 234-529 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H AKRON OH
2019-05-15 276-240 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - VA 138E BLUEFIELD VA
2019-05-15 276-282 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - VA 138E RICHLANDS VA
2019-05-15 276-295 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - VA 138E PENINGTNGP VA
2019-05-15 276-330 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → ONVOY, LLC - VA 138E BIG PRATER VA
2019-05-15 307-244 0XXX4XXX · 2 holders which blocks → SILVER STAR TEL CO INC 2295 FREEDOM WY
2019-05-15 314-639 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - MO 993E KIRKWOOD MO
2019-05-15 321-324 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2019-05-15 470-523 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D ATLANTA NW GA
2019-05-15 725-220 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NV 029F LAS VEGAS NV
2019-05-15 725-224 0–9 XXXall 10 · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NV 587C LAS VEGAS NV
2019-05-15 762-282 0–9 XXXall 10 · 5 holders which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ELLIJAY GA
2019-05-15 813-564 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2019-05-15 825-396 not yet reported which blocks → TELUS 8084 Oyen —
2019-05-15 930-222 0XXX1XXX2XXX3XXX4XXX5XXX8XXX · 4 holders which blocks → FRACTEL, LLC 965H BROWNSTOWN IN
2019-05-15 930-333 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → FRACTEL, LLC 965H BLOOMINGTN IN
2019-05-15 980-326 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NC 638E CHARLOTTE NC
2019-05-14 314-530 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - MO 093F ST LOUIS MO
2019-05-14 424-430 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E CMTN GRDN CA
2019-05-14 434-331 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - VA 138E EMPORIA VA
2019-05-14 470-491 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA SO GA
2019-05-14 470-508 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA NE GA
2019-05-14 505-421 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - NM 123F FARMINGTON NM
2019-05-14 517-247 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E JACKSON MI
2019-05-14 612-431 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - MN 980E TWINCITIES MN
2019-05-14 734-897 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 3 holders which blocks → 123.NET, LLC 2550 FLAT ROCK MI
2019-05-14 774-389 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - MA 892D WORCESTER MA
2019-05-14 814-413 0XXX1XXX2XXX3XXX5XXX6XXX7XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F ERIE PA

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.