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
Download CSV ↓
Quick find in this area code:
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2019-04-12 661-690 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 DELANO CA
2019-04-12 870-716 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AR 5179 HARRISON AR
2019-04-12 949-691 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2019-04-11 205-729 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 ALABASTER AL
2019-04-11 313-474 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - MI 991E DETROITZN4 MI
2019-04-11 313-889 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - MI 991E DETROITZN5 MI
2019-04-11 385-552 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 KAYSVILLE UT
2019-04-11 417-427 0–9 XXXwhole prefix which blocks → ONVOY, LLC - MO 093F SPRINGFLD MO
2019-04-11 469-613 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLANO TX
2019-04-11 470-483 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA SO GA
2019-04-11 480-937 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - AZ 587F PHOENIX AZ
2019-04-11 608-602 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 WAUNAKEE WI
2019-04-11 689-666 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H SANFORD FL
2019-04-11 689-999 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H OVIEDO FL
2019-04-11 725-218 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 LAS VEGAS NV
2019-04-11 732-487 0–9 XXXall 10 · 5 holders which blocks → CABLEVISION LIGHTPATH, INC. - NJ 4948 BOUNDBROOK NJ
2019-04-11 757-703 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - VA 138E WILLIAMSBG VA
2019-04-11 862-341 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MADISON NJ
2019-04-10 417-419 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2019-04-10 540-546 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - VA 138E WINCHESTER VA
2019-04-10 540-782 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F STANLEY VA
2019-04-10 575-241 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HOBBS NM
2019-04-10 701-760 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 6568 VALLEYCITY ND
2019-04-10 867-378 not yet reported which blocks → Bell Mobility 6574 Kugluktuk —
2019-04-10 930-444 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H EVANSVILLE IN
2019-04-09 231-531 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 MUSKEGON MI
2019-04-09 272-227 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - PA 547E ASHLAND PA
2019-04-09 334-653 1XXX2XXX3XXX4XXX8XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 COTTONWOOD AL
2019-04-09 364-222 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - KY 896E BESSIEBEND KY
2019-04-09 385-799 0–9 XXXall 10 · 5 holders which blocks → HD CARRIER LLC 321J SALT LAKE UT
2019-04-09 405-854 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 STILLWATER OK
2019-04-09 423-589 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GEORGETOWN TN
2019-04-09 470-649 0–9 XXXall 10 · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 ATLANTA NW GA
2019-04-09 470-802 0–9 XXXall 10 · 3 holders which blocks → ETC COMMUNICATIONS, L.L.C. - GA 205D FAIRMOUNT GA
2019-04-09 516-738 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN05 NY
2019-04-09 580-943 0XXX1XXX2XXX3XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → T-MOBILE USA, INC. 6529 DUNCAN OK
2019-04-09 681-333 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H CHEAT LAKE WV
2019-04-09 689-222 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H ORLANDO FL
2019-04-09 689-333 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H KISSIMMEE FL
2019-04-09 689-444 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H WINTERPARK FL
2019-04-09 701-791 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → HD CARRIER LLC 321J BISMARCK ND
2019-04-09 719-435 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - CO 078F BUENAVISTA CO
2019-04-09 720-681 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 DENVER CO
2019-04-09 862-340 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 PASSAIC NJ
2019-04-09 870-713 0–9 XXXall 10 · 2 holders which blocks → CSC WIRELESS, LLC 425J EL DORADO AR
2019-04-08 315-919 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E LYONS NY
2019-04-08 405-836 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 CHANDLER OK
2019-04-08 407-904 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E GENEVA FL
2019-04-08 559-605 0–9 XXXall 10 · 5 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J TULARE CA
2019-04-08 580-501 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 ADA OK

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.