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
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
2018-02-16 407-652 0–9 XXXall 10 · 6 holders which blocks → EXIANT COMMUNICATIONS LLC 114J ORLANDO FL
2018-02-16 540-619 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G MT GILEAD VA
2018-02-16 563-800 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - IA 221F CALMAR IA
2018-02-16 641-800 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - IA 221F ACKLEY IA
2018-02-16 641-999 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - IA 221F NASHUA IA
2018-02-16 786-584 0–9 XXXall 10 · 4 holders which blocks → EXIANT COMMUNICATIONS LLC 114J MIAMI FL
2018-02-16 805-515 0–9 XXXall 10 · 6 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J VNTRA CNTL CA
2018-02-16 814-809 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E JOHNSTOWN PA
2018-02-16 906-422 0–9 XXXall 10 · 4 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J MACKINACIS MI
2018-02-16 939-464 0–9 XXXwhole prefix which blocks → PUERTO RICO TELCO DBA CLARO PUERTO RICO 4823 BAYAMONNOR PR
2018-02-15 469-393 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F ALLEN TX
2018-02-15 470-407 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2018-02-15 508-206 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NATICK MA
2018-02-15 551-319 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - NJ 637C WYCKOFF NJ
2018-02-15 579-303 not yet reported which blocks → Distributel 083E Ste-Therese —
2018-02-15 579-304 not yet reported which blocks → Distributel 083E St-Jerome —
2018-02-15 579-305 not yet reported which blocks → Distributel 083E St-Hyacinthe —
2018-02-15 585-639 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E BROCKPORT NY
2018-02-15 628-561 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F STNSN-BLNS CA
2018-02-15 770-637 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D TEMPLE GA
2018-02-15 845-410 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E HIGH FALLS NY
2018-02-15 971-289 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF OREGON, LLC - OR 157F DALLAS OR
2018-02-14 207-387 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - ME 882G PORTLAND ME
2018-02-14 252-999 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - NC 638E GREENVILLE NC
2018-02-14 782-469 not yet reported which blocks → Bragg Communications Inc. 4878 Country Harbour —
2018-02-14 782-474 not yet reported which blocks → Bragg Communications Inc. 4878 Melrose —
2018-02-14 782-476 not yet reported which blocks → Bragg Communications Inc. 4878 Freeport —
2018-02-14 782-477 not yet reported which blocks → Bragg Communications Inc. 4878 Port Dufferin —
2018-02-14 782-478 not yet reported which blocks → Bragg Communications Inc. 4878 Lake Charlotte —
2018-02-14 782-481 not yet reported which blocks → Bragg Communications Inc. 4878 Tangier —
2018-02-14 804-522 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → COMCAST IP PHONE, LLC 318J MECHANCSVL VA
2018-02-14 807-255 not yet reported which blocks → KMTS, a division of Bell Canada 8218 Kenora —
2018-02-14 807-265 not yet reported which blocks → Dryden Municipal Telephone System 8210 Dryden —
2018-02-14 825-351 not yet reported which blocks → Bell West Inc. 2933 Calgary —
2018-02-14 825-352 not yet reported which blocks → Bell West Inc. 2933 Medicine Hat —
2018-02-14 825-353 not yet reported which blocks → Bell West Inc. 2933 Edmonton —
2018-02-14 825-354 not yet reported which blocks → Bell West Inc. 2933 Grande Prairie —
2018-02-14 825-355 not yet reported which blocks → Bell West Inc. 2933 Lethbridge —
2018-02-14 825-356 not yet reported which blocks → Bell West Inc. 2933 Red Deer —
2018-02-14 825-357 not yet reported which blocks → Bell West Inc. 2933 Fort McMurray —
2018-02-14 825-358 not yet reported which blocks → Bell West Inc. 2933 St. Albert —
2018-02-14 870-380 0XXX1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → E. RITTER COMMUNICATIONS, LLC 128L PINE BLUFF AR
2018-02-13 236-491 not yet reported which blocks → Bell West Inc. 2933 Victoria —
2018-02-13 236-492 not yet reported which blocks → Bell West Inc. 2933 Kelowna —
2018-02-13 236-493 not yet reported which blocks → Bell West Inc. 2933 Abbotsford —
2018-02-13 236-494 not yet reported which blocks → Bell West Inc. 2933 Prince George —
2018-02-13 236-495 not yet reported which blocks → Bell West Inc. 2933 Vancouver —
2018-02-13 236-496 not yet reported which blocks → Bell West Inc. 2933 Nanaimo —
2018-02-13 236-497 not yet reported which blocks → Bell West Inc. 2933 Vernon —
2018-02-13 236-498 not yet reported which blocks → Bell West Inc. 2933 Penticton —

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.