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
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
2017-12-08 682-264 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 FORT WORTH TX
2017-12-08 781-379 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DEDHAM MA
2017-12-07 317-792 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - IN 097D FISHERS IN
2017-12-07 352-329 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E FOREST FL
2017-12-07 425-490 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → COMCAST IP PHONE, LLC 318J FALL CITY WA
2017-12-07 484-781 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 ALLENTOWN PA
2017-12-07 579-962 not yet reported which blocks → TELUS Quebec 2243 Morin Heights —
2017-12-07 762-320 0–9 XXXall 10 · 4 holders which blocks → TELNYX LLC 073H AUGUSTA GA
2017-12-07 786-576 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 MIAMI FL
2017-12-07 825-206 not yet reported which blocks → TELUS 8084 Ardrossan —
2017-12-07 873-216 not yet reported which blocks → TELUS Quebec 2243 Gracefield —
2017-12-07 873-217 not yet reported which blocks → TELUS Quebec 2243 Quyon —
2017-12-07 873-218 not yet reported which blocks → TELUS Quebec 2243 Luskville —
2017-12-07 873-219 not yet reported which blocks → TELUS Quebec 2243 St-Pierre-de-Wakefield —
2017-12-07 873-221 not yet reported which blocks → TELUS Quebec 2243 Perkins —
2017-12-07 904-453 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 JACKSONVL FL
2017-12-06 309-322 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2017-12-06 364-444 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - KY 896E MAYFIELD KY
2017-12-06 641-631 0–9 XXXall 10 · 4 holders which blocks → OMNITEL COMMUNICATIONS, INC. - IA 3620 CHARLES CY IA
2017-12-06 641-666 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → ONVOY, LLC - IA 221F OSAGE IA
2017-12-06 825-204 not yet reported which blocks → TELUS 8084 High Prairie —
2017-12-06 828-621 9XXX which blocks → CHARTER IP ENABLED SERVICES, LLC 792K BARNARDSVL NC
2017-12-06 828-769 4XXX9XXX · 2 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K SALUDA NC
2017-12-06 857-324 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BOSTON MA
2017-12-06 857-326 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BOSTON MA
2017-12-06 952-207 0–9 XXXall 10 · 5 holders which blocks → MCC TELEPHONY LLC 593K TWINCITIES MN
2017-12-05 225-256 0–9 XXXall 10 · 2 holders which blocks → COMCAST IP PHONE, LLC 318J BATONROUGE LA
2017-12-05 337-283 0–9 XXXall 10 · 4 holders which blocks → COMCAST IP PHONE, LLC 318J ABBEVILLE LA
2017-12-05 662-406 2XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NOXAPATER MS
2017-12-05 904-439 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ST JOHNS FL
2017-12-05 931-341 0XXX1XXX2XXX3XXX4XXX6XXX9XXX · 2 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K COOKEVL SO TN
2017-12-05 941-241 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BRADENTON FL
2017-12-04 216-237 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 CLEVELAND OH
2017-12-04 249-880 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B Barrie —
2017-12-04 336-647 0–9 XXXall 10 · 4 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K ROXBORO NC
2017-12-04 343-880 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B Orleans —
2017-12-04 365-887 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B Richmond Hill —
2017-12-04 469-350 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2017-12-04 539-245 0–9 XXXall 10 · 6 holders which blocks → COMCAST IP PHONE, LLC 318J POCOLA OK
2017-12-04 539-352 0–9 XXXall 10 · 6 holders which blocks → COMCAST IP PHONE, LLC 318J MOFFETT OK
2017-12-04 548-288 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B Kitchener-Waterloo —
2017-12-04 548-688 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B London —
2017-12-04 548-880 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B Brantford —
2017-12-04 548-988 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B Guelph —
2017-12-04 581-510 not yet reported which blocks → Sogetel Inc. 8237 Beauceville —
2017-12-04 873-250 not yet reported which blocks → Sogetel Inc. 8237 Nicolet —
2017-12-04 913-355 0–9 XXXall 10 · 3 holders which blocks → EVERFAST FIBER NETWORKS LLC 3915 OLATHE KS
2017-12-02 236-333 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Vancouver —
2017-12-02 236-668 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Vancouver —
2017-12-02 236-688 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Vancouver —

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.