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
2018-08-17 209-488 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 MODESTO CA
2018-08-17 365-822 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Milton —
2018-08-17 579-445 not yet reported which blocks → Cooptel 818D St-Aime —
2018-08-17 579-688 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 St-Jerome —
2018-08-17 581-850 not yet reported which blocks → Videotron Ltd. 8306 La Malbaie —
2018-08-17 646-969 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2018-08-17 825-400 not yet reported which blocks → TELUS 8084 Edmonton —
2018-08-17 863-250 0–9 XXXwhole prefix which blocks → ONVOY, LLC - FL 937C LAKELAND FL
2018-08-17 863-270 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C LAKE WALES FL
2018-08-17 863-900 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C HAINESCITY FL
2018-08-17 916-516 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 SCRM MAIN CA
2018-08-17 929-486 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN07 NY
2018-08-17 941-909 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C BRADENTON FL
2018-08-17 941-919 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C MYAKKA FL
2018-08-17 949-490 0–9 XXXall 10 · 7 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 IRVINE CA
2018-08-17 971-990 0–9 XXXall 10 · 4 holders which blocks → INVOXIO INCORPORATED 158H PORTLAND OR
2018-08-16 407-686 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 KISSIMMEE FL
2018-08-16 423-560 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TN 525E ERWIN TN
2018-08-16 423-770 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - TN 525E CHURCHHILL TN
2018-08-16 551-284 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - NJ 637C RIDGEWOOD NJ
2018-08-16 581-660 not yet reported which blocks → Videotron Ltd. 8306 Rimouski —
2018-08-16 661-439 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 BKFD MAIN CA
2018-08-16 929-485 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN10 NY
2018-08-15 205-539 0–9 XXXall 10 · 4 holders which blocks → AIRUS, INC. - AL 476H TUSCALOOSA AL
2018-08-15 223-206 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - PA 547E FAYETTEVL PA
2018-08-15 223-207 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E COLUMBIA PA
2018-08-15 223-208 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - PA 547E LEWISTOWN PA
2018-08-15 267-896 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN2 PA
2018-08-15 314-408 0–9 XXXall 10 · 5 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K MEHLVILLE MO
2018-08-15 315-997 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E ONTARIO NY
2018-08-15 346-446 0–9 XXXall 10 · 3 holders which blocks → WIDE VOICE, LLC - TX 706G HOUSTON TX
2018-08-15 425-389 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 BELLEVUE WA
2018-08-15 480-530 0–9 XXXall 10 · 5 holders which blocks → VOIP INNOVATIONS, LLC 597F PHOENIX AZ
2018-08-15 484-917 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - PA 547E BERNVILLE PA
2018-08-15 515-815 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 AMES IA
2018-08-15 720-805 0–9 XXXall 10 · 2 holders which blocks → VOIP INNOVATIONS, LLC 597F DENVER CO
2018-08-15 850-787 0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - FL 937C FREEPORT FL
2018-08-15 929-484 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN06 NY
2018-08-15 929-490 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2018-08-15 929-602 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN12 NY
2018-08-15 970-743 0–9 XXXall 10 · 5 holders which blocks → ALLO COMMUNICATIONS LLC 907K FORTMORGAN CO
2018-08-14 270-947 0–9 XXXall 10 · 6 holders which blocks → POWERTEL KENTUCKY LICENSES, INC. 365C BEAVER DAM KY
2018-08-14 312-584 0–9 XXXall 10 · 2 holders which blocks → VOIP INNOVATIONS, LLC 597F CHICGOZN01 IL
2018-08-14 315-996 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E NORWOOD NY
2018-08-14 343-551 not yet reported which blocks → Bell Mobility 6574 Ottawa-Hull —
2018-08-14 346-355 0–9 XXXall 10 · 3 holders which blocks → VOIP INNOVATIONS, LLC 597F HOUSTON TX
2018-08-14 412-615 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 PTGSBNZN14 PA
2018-08-14 469-498 0–9 XXXall 10 · 3 holders which blocks → VOIP INNOVATIONS, LLC 597F DALLAS TX
2018-08-14 469-501 0–9 XXXall 10 · 7 holders which blocks → AIRUS, INC. - TX 951F DALLAS TX
2018-08-14 508-239 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA

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.