NumberResearch Membership · Data 10/01/2026

Recent prefix assignments

374 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 10/01/2026

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 28
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
Download CSV ↓
Quick find in this area code:
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2018-08-29 256-719 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - AL 604E MOULTON AL
2018-08-29 334-326 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AL 604E UNIONTOWN AL
2018-08-29 334-666 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - AL 604E WETUMPKA AL
2018-08-29 343-367 not yet reported which blocks → Videotron Ltd. 383F Belleville —
2018-08-29 343-507 not yet reported which blocks → Videotron Ltd. 383F Brockville —
2018-08-29 343-567 not yet reported which blocks → Videotron Ltd. 383F Pembroke —
2018-08-29 343-867 not yet reported which blocks → Videotron Ltd. 383F Cornwall —
2018-08-29 365-724 not yet reported which blocks → Videotron Ltd. 383F Cobourg —
2018-08-29 469-542 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2018-08-29 585-470 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ROCHESTER NY
2018-08-29 629-225 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - TN 525E KINGSTNSPG TN
2018-08-29 629-226 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - TN 525E WATERTOWN TN
2018-08-29 772-771 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - FL 937C JENSEN BCH FL
2018-08-29 772-773 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - FL 937C FORTPIERCE FL
2018-08-29 786-632 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E KEYS FL
2018-08-29 845-479 0–9 XXXall 10 · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLETOWN NY
2018-08-29 850-446 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - FL 937C MUNSON FL
2018-08-29 854-458 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - SC 548E LAKE VIEW SC
2018-08-29 862-328 0–9 XXXall 10 · 6 holders which blocks → CABLEVISION LIGHTPATH, INC. - NJ 4948 BUTLER NJ
2018-08-29 864-532 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - SC 548E ANDERSON SC
2018-08-29 864-564 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - SC 548E SPARTANBG SC
2018-08-29 864-635 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - SC 548E CLEMSON SC
2018-08-29 864-668 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - SC 548E PICKENS SC
2018-08-29 864-860 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - SC 548E BELTON SC
2018-08-29 864-866 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLC - SC 548E LIBERTY SC
2018-08-29 864-874 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - SC 548E GREER SC
2018-08-28 205-772 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E ETHELSVL AL
2018-08-28 205-813 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - AL 604E PELL CITY AL
2018-08-28 458-500 0XXX1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → INVOXIO INCORPORATED 158H BLACKBUTTE OR
2018-08-28 458-800 0–9 XXXall 10 · 6 holders which blocks → INVOXIO INCORPORATED 158H MADRAS OR
2018-08-28 469-512 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLANO TX
2018-08-28 475-685 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 STAMFORD CT
2018-08-28 515-690 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → IMON COMMUNICATIONS, LLC - IA 695G INDIANOLA IA
2018-08-28 571-500 0–9 XXXwhole prefix which blocks → ONVOY, LLC - VA 138E HERNDON VA
2018-08-28 712-634 0XXX2XXX4XXX5XXX6XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - IA 985E CARROLL IA
2018-08-28 774-375 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2018-08-28 814-996 0–9 XXXall 10 · 8 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STATECOLLG PA
2018-08-28 830-272 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → EXIANT COMMUNICATIONS LLC 114J SEGUIN TX
2018-08-28 904-467 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E BALDWIN FL
2018-08-28 940-278 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F JUSTIN TX
2018-08-27 229-261 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E GEORGETOWN GA
2018-08-27 234-250 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 AKRON OH
2018-08-27 317-785 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - IN 105F WESTFIELD IN
2018-08-27 319-300 0–9 XXXall 10 · 9 holders which blocks → T-MOBILE USA, INC. 6529 WATERLOO IA
2018-08-27 331-239 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC 224C YORKVILLE IL
2018-08-27 438-343 not yet reported which blocks → Bell Mobility 6574 Montreal —
2018-08-27 647-396 not yet reported which blocks → Bell Mobility 6574 Toronto —
2018-08-27 712-214 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - IA 221F ASHTON IA
2018-08-27 712-218 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IA 221F BATTLE CRK IA
2018-08-27 712-306 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - IA 221F BRUNSVILLE IA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 10/01/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.