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
2019-06-19 786-770 0–9 XXXall 10 · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H MIAMI FL
2019-06-19 816-722 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST JOSEPH MO
2019-06-19 862-346 0–9 XXXall 10 · 5 holders which blocks → CSC WIRELESS, LLC 425J BUTLER NJ
2019-06-18 205-829 0–9 XXXall 10 · 4 holders which blocks → VOIP INNOVATIONS, LLC 597F BIRMINGHAM AL
2019-06-18 205-839 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E CARROLLTON AL
2019-06-18 205-843 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E EUTAW AL
2019-06-18 205-846 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AL 604E LIVINGSTON AL
2019-06-18 205-851 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AL 604E MONTEVALLO AL
2019-06-18 205-852 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E PINSON AL
2019-06-18 205-890 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E ALICEVILLE AL
2019-06-18 205-891 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E BRILLIANT AL
2019-06-18 207-813 0–9 XXXall 10 · 6 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K ELLSWORTH ME
2019-06-18 226-687 not yet reported which blocks → Gosfield North Communication Co-operative Ltd. 117H Comber —
2019-06-18 226-736 not yet reported which blocks → Gosfield North Communication Co-operative Ltd. 117H Kingsville —
2019-06-18 226-956 not yet reported which blocks → TELUS Integrated Communications 2782 St. Thomas —
2019-06-18 256-210 0–9 XXXall 10 · 3 holders which blocks → VOIP INNOVATIONS, LLC 597F HUNTSVILLE AL
2019-06-18 307-443 3XXX4XXX5XXX6XXX · 2 holders which blocks → COMMIO, LLC 939H CHEYENNE WY
2019-06-18 318-693 0–9 XXXall 10 · 3 holders which blocks → VOIP INNOVATIONS, LLC 597F SHREVEPORT LA
2019-06-18 346-456 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C MANVEL TX
2019-06-18 346-567 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TX 903C MONTBLVIEU TX
2019-06-18 352-565 0–9 XXXall 10 · 5 holders which blocks → VOIP INNOVATIONS, LLC 597F GAINESVL FL
2019-06-18 365-256 not yet reported which blocks → TELUS Integrated Communications 2782 Castlemore —
2019-06-18 365-257 not yet reported which blocks → TELUS Integrated Communications 2782 Snelgrove —
2019-06-18 365-258 not yet reported which blocks → TELUS Integrated Communications 2782 Victoria —
2019-06-18 385-401 0–9 XXXall 10 · 3 holders which blocks → VOIP INNOVATIONS, LLC 597F SALT LAKE UT
2019-06-18 424-440 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 W ANGELES CA
2019-06-18 563-337 2XXX3XXX6XXX7XXX · 3 holders which blocks → HAWKEYE INTERCONNECT COMPANY - IA 429J FAYETTE IA
2019-06-18 580-645 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - OK 119F ADA OK
2019-06-18 689-208 0–9 XXXall 10 · 4 holders which blocks → VOIP INNOVATIONS, LLC 597F ORLANDO FL
2019-06-18 774-391 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALPOLE MA
2019-06-18 865-364 0–9 XXXall 10 · 3 holders which blocks → VOIP INNOVATIONS, LLC 597F KNOXVILLE TN
2019-06-18 873-628 not yet reported which blocks → Cooptel 818D Drummondville —
2019-06-18 916-894 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SCRM MAIN CA
2019-06-18 938-253 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E CHULAFINNE AL
2019-06-17 254-354 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TX 903C PRAIRIE HL TX
2019-06-17 254-358 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TX 903C SANDY TX
2019-06-17 254-390 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C TEHUACANA TX
2019-06-17 254-536 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TX 903C MALONE TX
2019-06-17 254-540 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C CHILTON TX
2019-06-17 254-570 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C DAWSON TX
2019-06-17 254-600 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TX 903C BEN HUR TX
2019-06-17 254-620 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - TX 903C BYNUM TX
2019-06-17 254-944 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - TX 903C MOSHEIM TX
2019-06-17 313-880 0–9 XXXall 10 · 4 holders which blocks → VOIP INNOVATIONS, LLC 597F DETROITZN1 MI
2019-06-17 334-675 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 GREENSBORO AL
2019-06-17 502-665 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LOUISVILLE KY
2019-06-17 517-329 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks → VOIP INNOVATIONS, LLC 597F LANSING MI
2019-06-17 616-330 0–9 XXXall 10 · 3 holders which blocks → VOIP INNOVATIONS, LLC 597F GRAND RPDS MI
2019-06-17 681-867 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → COMMIO, LLC 939H MORGANTOWN WV
2019-06-17 689-207 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E WINTERPARK FL

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.