NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

372 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 27
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
New assignments by month Oct 2026 Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2019-02-06 807-234 not yet reported which blocks → TELUS Integrated Communications 2782 Thunder Bay —
2019-02-06 909-715 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E CRESTLINE CA
2019-02-05 365-398 not yet reported which blocks → Iristel Inc. 154E Cobourg —
2019-02-05 424-427 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E CMTN CMTN CA
2019-02-05 424-502 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E EL SEGUNDO CA
2019-02-05 478-210 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D MONTROSE GA
2019-02-05 478-395 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D TOOMSBORO GA
2019-02-05 520-783 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 TUCSON AZ
2019-02-05 713-903 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - TX 903C BAYTOWN TX
2019-02-05 805-790 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E EL RIO CA
2019-02-05 912-301 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D FARGO GA
2019-02-05 912-913 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D TYBEE IS GA
2019-02-04 438-362 not yet reported which blocks → Bell Mobility 6574 Montreal —
2019-02-04 651-370 0–9 XXXall 10 · 3 holders which blocks → COMCAST IP PHONE, LLC 318J TWINCITIES MN
2019-02-04 873-553 not yet reported which blocks → Videotron Ltd. 8306 St-Felix-de-Kingsey —
2019-02-01 207-600 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H GORHAM ME
2019-02-01 213-732 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H LSAN DA 12 CA
2019-02-01 213-866 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H LSAN DA 03 CA
2019-02-01 431-671 not yet reported which blocks → Bell West Inc. 2933 Altona —
2019-02-01 431-672 not yet reported which blocks → Bell West Inc. 2933 Eriksdale —
2019-02-01 431-673 not yet reported which blocks → Bell West Inc. 2933 Grunthal —
2019-02-01 431-674 not yet reported which blocks → Bell West Inc. 2933 Niverville —
2019-02-01 431-675 not yet reported which blocks → Bell West Inc. 2933 Ste. Anne —
2019-02-01 431-676 not yet reported which blocks → Bell West Inc. 2933 Teulon —
2019-02-01 561-446 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 WPALMBEACH FL
2019-02-01 786-668 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 MIAMI FL
2019-02-01 929-508 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN05 NY
2019-01-31 236-969 not yet reported which blocks → TELUS Mobility 8301 Victoria —
2019-01-31 314-820 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 LADUE MO
2019-01-31 347-970 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC- NY 384C NWYRCYZN10 NY
2019-01-31 385-301 0–9 XXXall 10 · 7 holders which blocks → METROPCS, INC. 5562 SALT LAKE UT
2019-01-31 424-420 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 INGLEWOOD CA
2019-01-31 425-515 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 BELLEVUE WA
2019-01-31 509-408 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - WA 006F LIBERTY LK WA
2019-01-31 660-600 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SEDALIA MO
2019-01-31 718-970 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC- NY 384C NWYRCYZN12 NY
2019-01-31 747-287 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 RESEDA CA
2019-01-31 747-290 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2019-01-31 747-312 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2019-01-31 773-692 0–9 XXXwhole prefix which blocks → ONVOY, LLC 224C CHICGOZN04 IL
2019-01-31 816-441 0–9 XXXall 10 · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 BELTON MO
2019-01-31 901-677 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H MEMPHIS TN
2019-01-31 910-902 0–9 XXXall 10 · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H WILMINGTON NC
2019-01-31 929-507 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN08 NY
2019-01-30 240-659 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ASHTON236 MD
2019-01-30 240-663 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 MIDDLETOWN MD
2019-01-30 249-424 not yet reported which blocks → ExaTEL Inc. 3147 Alliston —
2019-01-30 302-487 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 DOVER DE
2019-01-30 312-776 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2019-01-30 380-799 0–9 XXXall 10 · 3 holders which blocks → HD CARRIER LLC 321J COLUMBUS OH

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.