NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

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

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
Rogers Communications Canada Inc. (Wireless) 46
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 27
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
New assignments by month Oct 2026 Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 469-828 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → SOUTHWESTERN BELL 9533 DALLAS TX
— 469-831 not yet reported which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
— 469-835 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
— 469-837 0–9 XXXall 10 · 7 holders which blocks → TELNYX LLC 073H TERRELL TX
— 469-844 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DLFTWTARPT TX
— 469-845 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 IRVING TX
— 469-853 none assigned yet which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
— 469-854 5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ALLEN TX
— 469-855 not yet reported which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
— 469-857 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K DALLAS TX
— 469-864 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → T-MOBILE USA, INC. 6529 FORNEY TX
— 469-865 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - TX 903C GRANDPRARI TX
— 469-867 not yet reported which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
— 469-874 0XXX1XXX6XXX which blocks → PEOPLES COMMUNICATION, INC. -TX 135H ROYSE CITY TX
— 469-892 4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 CARROLLTON TX
— 469-893 0XXX1XXX5XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
— 469-894 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 ENNIS TX
— 469-897 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 ROCKWALL TX
— 469-898 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TX 903C ALLEN TX
— 469-899 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C DALLAS TX
— 469-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX TX
— 469-916 not yet reported which blocks → ONVOY, LLC - TX 903C DALLAS TX
— 469-932 not yet reported which blocks → MATRIX TELECOM, LLC. S/I/I TNCI - TX 7715 CELINA TX
— 469-933 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LEWISVILLE TX
— 469-939 not yet reported which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
— 469-941 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → SOUTHWESTERN BELL 9533 DALLAS TX
— 469-948 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 LEWISVILLE TX
— 469-950 not yet reported which blocks → TX
— 469-951 not yet reported which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
— 469-952 0XXX1XXX4XXX7XXX8XXX9XXX · 3 holders which blocks → SOUTHWESTERN BELL 9533 MCKINNEY TX
— 469-957 0–9 XXXall 10 · 7 holders which blocks → METROPCS, INC. 5562 IRVING TX
— 469-958 not yet reported which blocks → MULTIPLE OCN LISTING MULT TX
— 469-959 not yet reported which blocks → MULTIPLE OCN LISTING MULT TX
— 469-962 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H DE SOTO TX
— 469-964 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
— 469-976 not yet reported which blocks → TX
— 469-977 0XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
— 469-985 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 DALLAS TX
— 469-995 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 4344 IRVING TX
— 470-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX GA
— 470-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX GA
— 470-323 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BUFORD GA
— 470-326 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - GA 067D BUFORD GA
— 470-342 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
— 470-372 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
— 470-385 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 ATLANTA NE GA
— 470-390 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA NE GA
— 470-391 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF GEORGIA, LLC - GA 909E ATLANTA GA
— 470-400 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D NEWNAN GA
— 470-403 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA NE GA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.