NumberResearch Membership · Data 09/29/2026

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
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
Rogers Communications Canada Inc. (Wireless) 23
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
2019-06-18 689-208 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
2019-06-17 782-245 not yet reported which blocks → TELUS Integrated Communications 2782 Glace Bay —
2019-06-17 782-246 not yet reported which blocks → TELUS Integrated Communications 2782 North Sydney —
2019-06-17 782-247 not yet reported which blocks → TELUS Integrated Communications 2782 Berwick —
2019-06-17 782-248 not yet reported which blocks → TELUS Integrated Communications 2782 Sydney —
2019-06-17 782-249 not yet reported which blocks → TELUS Integrated Communications 2782 New Waterford —
2019-06-17 782-357 not yet reported which blocks → TELUS Integrated Communications 2782 Yarmouth —
2019-06-17 786-699 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E NORTH DADE FL
2019-06-17 912-446 0–9 XXXall 10 · 6 holders which blocks → VOIP INNOVATIONS, LLC 597F SAVANNAH GA
2019-06-17 936-935 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - TX 903C NORTHZULCH TX
2019-06-17 936-937 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → ONVOY, LLC - TX 903C HILLTOPLKS TX
2019-06-17 936-939 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - TX 903C IOLA TX
2019-06-17 940-340 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C BONITA TX
2019-06-17 940-350 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - TX 903C MONTAGUE TX
2019-06-17 940-360 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - TX 903C RINGGOLD TX
2019-06-17 940-370 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - TX 903C SPANISH FT TX
2019-06-17 980-423 0–9 XXXall 10 · 5 holders which blocks → VOIP INNOVATIONS, LLC 597F CHARLOTTE NC
2019-06-14 228-529 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H BILOXI MS
2019-06-14 314-476 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2019-06-14 343-502 not yet reported which blocks → Iristel Inc. 346J Ottawa-Hull —
2019-06-14 506-407 not yet reported which blocks → Iristel Inc. 346J Moncton —
2019-06-14 607-313 0–9 XXXall 10 · 4 holders which blocks → VOIP INNOVATIONS, LLC 597F BINGHAMTON NY
2019-06-14 623-259 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2019-06-14 669-295 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E SNJS WEST CA
2019-06-14 709-708 not yet reported which blocks → Iristel Inc. 346J Clarenville —
2019-06-14 825-514 not yet reported which blocks → TELUS 8084 Edmonton —
2019-06-14 902-506 not yet reported which blocks → Iristel Inc. 346J Halifax —
2019-06-14 959-867 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H HARTFORD CT
2019-06-14 980-315 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONROE NC

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.