NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

375 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 28
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
2019-10-15 667-346 0XXX2XXX3XXX6XXX7XXX9XXX · 4 holders which blocks → CSC WIRELESS, LLC 425J SALISBURY MD
2019-10-15 689-213 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 KISSIMMEE FL
2019-10-15 917-540 0–9 XXXwhole prefix which blocks → ONVOY, LLC- NY 384C NWYRCYZN01 NY
2019-10-15 920-990 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - WI 225C RIPON WI
2019-10-15 929-532 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN03 NY
2019-10-15 929-544 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN08 NY
2019-10-15 929-557 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN10 NY
2019-10-15 929-604 0–9 XXXall 10 · 7 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN13 NY
2019-10-14 224-362 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H ZION IL
2019-10-14 251-512 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E COFFEEVL AL
2019-10-14 251-850 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - AL 604E FAIRHOPE AL
2019-10-14 501-382 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AR 348F LONSDALE AR
2019-10-14 659-529 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H BESSEMER AL
2019-10-14 659-766 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H COLUMBIANA AL
2019-10-11 205-922 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H BIRMINGHAM AL
2019-10-11 223-225 0–9 XXXall 10 · 5 holders which blocks → CSC WIRELESS, LLC 425J HARISBGZN1 PA
2019-10-11 224-342 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H ARLIGTNHTS IL
2019-10-11 224-367 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H DUNDEE IL
2019-10-11 224-488 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H GLENVIEW IL
2019-10-11 224-842 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H LIBERTYVL IL
2019-10-11 226-906 not yet reported which blocks → Iristel Inc. 154E Essex —
2019-10-11 226-907 not yet reported which blocks → Iristel Inc. 154E Durham —
2019-10-11 249-801 not yet reported which blocks → Iristel Inc. 154E Algoma Mills —
2019-10-11 279-202 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 FAIR OAKS CA
2019-10-11 331-336 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H AURORA IL
2019-10-11 331-348 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H ELBURN IL
2019-10-11 331-732 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H GENEVA IL
2019-10-11 367-998 not yet reported which blocks → TELUS Mobility 8303 Alma —
2019-10-11 469-836 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2019-10-11 469-934 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2019-10-11 478-887 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLC - GA 067D JEFFERSNVL GA
2019-10-11 479-368 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAYETTEVL AR
2019-10-11 518-914 0–9 XXXall 10 · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCHENCTADY NY
2019-10-11 605-640 0–9 XXXall 10 · 5 holders which blocks → AIRUS, INC. - SD 580H MCINTOSH SD
2019-10-11 659-888 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → FRACTEL, LLC 965H CALERA AL
2019-10-11 667-274 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELKRIDGE MD
2019-10-11 680-213 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 HERKIMER NY
2019-10-11 682-306 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2019-10-11 727-296 0–9 XXXall 10 · 4 holders which blocks → MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 CLEARWATER FL
2019-10-11 754-251 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HOLLYWOOD FL
2019-10-11 774-416 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2019-10-11 779-758 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H JOLIET IL
2019-10-11 857-356 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 BOSTON MA
2019-10-11 902-510 not yet reported which blocks → Iristel Inc. 154E Caledonia —
2019-10-11 902-517 not yet reported which blocks → Iristel Inc. 154E Antigonish —
2019-10-11 902-518 not yet reported which blocks → Iristel Inc. 154E Bridgewater —
2019-10-11 912-494 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D ST GEORGE GA
2019-10-11 985-334 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MANDEVILLE LA
2019-10-10 224-317 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-10 224-348 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H ALGONQUIN IL

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.