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
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2019-06-11 647-443 not yet reported which blocks → Bell Mobility 6574 Toronto —
2019-06-11 647-595 not yet reported which blocks → Bell Mobility 6574 Toronto —
2019-06-11 970-634 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 JOHNSTMLKN CO
2019-06-10 218-509 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MN 5256 MOOSE LAKE MN
2019-06-10 267-837 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → COMCAST IP PHONE, LLC 318J PENNSBURG PA
2019-06-10 510-980 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FRNK MAIN CA
2019-06-10 531-232 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2019-06-10 602-609 0–9 XXXall 10 · 4 holders which blocks → HD CARRIER LLC 321J PHOENIX AZ
2019-06-10 647-441 not yet reported which blocks → Bell Mobility 6574 Toronto —
2019-06-10 647-442 not yet reported which blocks → Bell Mobility 6574 Toronto —
2019-06-10 657-385 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 BUENA PARK CA
2019-06-10 907-379 0XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS 6563 HEALY AK
2019-06-10 907-409 0XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS 6563 CANTWELL AK
2019-06-10 907-502 0XXX1XXX2XXX3XXX4XXX5XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS 6563 TALKEETNA AK
2019-06-10 917-571 0–9 XXXwhole prefix which blocks → LTE WIRELESS INC D/B/A LTE WIRELESS - NY 452J NWYRCYZN01 NY
2019-06-07 341-888 0–9 XXXall 10 · 4 holders which blocks → WIDE VOICE, LLC - CA 252F FRNK MAIN CA
2019-06-07 365-567 not yet reported which blocks → ExaTEL Inc. 3147 Schomberg —
2019-06-07 385-338 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - UT 871E LEHI UT
2019-06-07 385-438 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - UT 871E PAYSON UT
2019-06-07 385-442 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - UT 871E CLEARFIELD UT
2019-06-07 916-809 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SCRM MAIN CA
2019-06-06 515-417 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 FORT DODGE IA
2019-06-06 709-205 not yet reported which blocks → TELUS Integrated Communications 2782 New Harbour —
2019-06-06 709-206 not yet reported which blocks → TELUS Integrated Communications 2782 Grand Bank —
2019-06-06 782-241 not yet reported which blocks → TELUS Integrated Communications 2782 Summerside —
2019-06-06 786-698 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 KEYS FL
2019-06-06 816-334 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 LEESSUMMIT MO
2019-06-06 857-335 0–9 XXXall 10 · 5 holders which blocks → CSC WIRELESS, LLC 425J BOSTON MA
2019-06-05 385-324 0–9 XXXall 10 · 4 holders which blocks → COMCAST IP PHONE, LLC 318J BOUNTIFUL UT
2019-06-05 469-663 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ALLEN TX
2019-06-05 639-949 not yet reported which blocks → SaskTel Mobility 9868 Marshall —
2019-06-05 782-244 not yet reported which blocks → TELUS Integrated Communications 2782 Hunter River —
2019-06-05 804-773 0–9 XXXall 10 · 6 holders which blocks → CSC WIRELESS, LLC 425J RICHMOND VA
2019-06-05 808-500 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - HI 210H WAILUKU HI
2019-06-05 865-353 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TWIN LAKES COMMUNICATIONS, INC. - TN 204G HARRIMAN TN
2019-06-05 940-576 1XXX6XXX · 2 holders which blocks → AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX 0132 WEINERT TX
2019-06-05 940-578 1XXX2XXX6XXX8XXX · 4 holders which blocks → AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX 0132 THROCKMOTN TX
2019-06-04 213-758 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H LSAN DA 02 CA
2019-06-04 251-305 0–9 XXXall 10 · 4 holders which blocks → COMCAST IP PHONE, LLC 318J MOBILE AL
2019-06-04 318-692 0–9 XXXall 10 · 4 holders which blocks → COMCAST IP PHONE, LLC 318J MONROE LA
2019-06-04 410-936 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J SALISBURY MD
2019-06-04 418-474 not yet reported which blocks → Iristel Inc. 154E Donnacona —
2019-06-04 418-506 not yet reported which blocks → Iristel Inc. 154E Sainte-Marie-de-Beauce —
2019-06-04 431-381 not yet reported which blocks → Shaw Telecom Inc. 497E Stonewall —
2019-06-04 432-529 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H CRANE TX
2019-06-04 463-600 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H FAIRLAND IN
2019-06-04 765-270 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 4 holders which blocks → COMCAST IP PHONE, LLC 318J RICHMOND IN
2019-06-04 813-678 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H TAMPACEN FL
2019-06-04 850-821 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C CANTONMENT FL
2019-06-04 865-600 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H GREENBACK TN

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.