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
Download CSV ↓
Quick find in this area code:
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2019-04-16 470-502 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E ATLANTA SO GA
2019-04-16 484-697 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FLEETWOOD PA
2019-04-16 564-777 0XXX1XXX2XXX3XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → TERRA NOVA TELECOM INC. 145J CASTLEROCK WA
2019-04-16 720-701 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DENVER CO
2019-04-16 931-355 0XXX1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 SOOAKGROVE TN
2019-04-15 223-227 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F ELIZABTHTN PA
2019-04-15 224-299 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ELK GROVE IL
2019-04-15 318-685 0–9 XXXall 10 · 3 holders which blocks → AIRUS, INC. - LA 477H SHREVEPORT LA
2019-04-15 360-845 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - WA 483E PORT ORCH WA
2019-04-15 385-327 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - UT 117F SPRINGVL UT
2019-04-15 385-328 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2019-04-15 431-331 not yet reported which blocks → LES.NET (1996) Inc. 141F Strathclair —
2019-04-15 470-463 0–9 XXXwhole prefix which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ATLANTA GA
2019-04-15 539-230 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 SALLISAW OK
2019-04-15 561-466 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2019-04-15 657-379 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2019-04-15 786-674 0–9 XXXwhole prefix which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 MIAMI FL
2019-04-15 862-342 0XXX1XXX2XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 LAKEMOHAWK NJ
2019-04-15 918-883 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 BARTLESVL OK
2019-04-15 920-501 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2019-04-12 207-690 0–9 XXXall 10 · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 KITTERY ME
2019-04-12 647-366 not yet reported which blocks → Fibernetics Corporation 464D Toronto —
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

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.