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
2019-05-28 830-396 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 KENEDY TX
2019-05-28 838-219 0XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 KINDERHOOK NY
2019-05-28 845-719 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 KERHONKSON NY
2019-05-28 928-352 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - AZ 630E KINGMAN AZ
2019-05-27 438-250 not yet reported which blocks → Bell Mobility 6574 Montreal —
2019-05-27 438-252 not yet reported which blocks → Bell Mobility 6574 Montreal —
2019-05-27 647-440 not yet reported which blocks → Bell Mobility 6574 Toronto —
2019-05-27 782-237 not yet reported which blocks → TELUS Integrated Communications 2782 Waverley —
2019-05-27 782-238 not yet reported which blocks → TELUS Integrated Communications 2782 Halifax —
2019-05-24 651-467 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLC - MN 184D LINDSTROM MN
2019-05-24 689-800 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF FLORIDA, LLC - FL 902E ORLANDO FL
2019-05-24 732-724 0–9 XXXall 10 · 4 holders which blocks → CORETEL NEW JERSEY, INC. - NJ 482F SOUTHRIVER NJ
2019-05-24 782-239 not yet reported which blocks → TELUS Integrated Communications 2782 St. Margarets —
2019-05-24 782-240 not yet reported which blocks → TELUS Integrated Communications 2782 Sackville —
2019-05-24 782-242 not yet reported which blocks → TELUS Integrated Communications 2782 Prospect Road —
2019-05-24 782-243 not yet reported which blocks → TELUS Integrated Communications 2782 Elmsdale —
2019-05-24 786-696 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 MIAMI FL
2019-05-24 848-837 0–9 XXXall 10 · 4 holders which blocks → CORETEL NEW JERSEY, INC. - NJ 482F MIDDLETOWN NJ
2019-05-24 929-531 0–9 XXXall 10 · 4 holders which blocks → CSC WIRELESS, LLC 425J NWYRCYZN13 NY
2019-05-24 929-610 0–9 XXXall 10 · 5 holders which blocks → CSC WIRELESS, LLC 425J NWYRCYZN04 NY
2019-05-24 940-373 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F JUSTIN TX
2019-05-23 208-203 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - ID 689F PARMA ID
2019-05-23 225-432 0–9 XXXall 10 · 3 holders which blocks → TELNYX LLC 073H BATONROUGE LA
2019-05-23 229-466 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E GEORGETOWN GA
2019-05-23 229-488 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VALDOSTA GA
2019-05-23 307-666 0XXX4XXX6XXX7XXX · 3 holders which blocks → FRACTEL, LLC 965H CHEYENNE WY
2019-05-23 361-251 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 C CHRISTI TX
2019-05-23 385-330 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - UT 117F PLEASATGRV UT
2019-05-23 432-348 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H BIG SPRING TX
2019-05-23 432-356 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H ALPINE TX
2019-05-23 432-465 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H MONAHANS TX
2019-05-23 432-600 0XXX4XXX6XXX · 2 holders which blocks → FRACTEL, LLC 965H MIDLAND TX
2019-05-23 432-900 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H TERMINAL TX
2019-05-23 438-254 not yet reported which blocks → Bell Mobility 6574 Montreal —
2019-05-23 438-692 not yet reported which blocks → Bell Mobility 6574 Montreal —
2019-05-23 475-262 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - CT 199F HUNTINGTON CT
2019-05-23 647-432 not yet reported which blocks → Bell Mobility 6574 Toronto —
2019-05-23 681-688 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H WEST UNION WV
2019-05-23 734-492 0–9 XXXall 10 · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2019-05-23 762-275 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBUS GA
2019-05-23 802-400 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - VT 451F BRADFORD VT
2019-05-23 845-844 0XXX4XXX · 2 holders which blocks → TERRA NOVA TELECOM INC. 145J POUGHKEPSI NY
2019-05-23 872-248 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2019-05-23 915-529 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H EL PASO TX
2019-05-23 915-900 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H FT HANCOCK TX
2019-05-23 920-678 4XXX7XXX8XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H ST CLOUD WI
2019-05-23 929-977 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H NWYRCYZN14 NY
2019-05-23 940-290 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F AUBREY TX
2019-05-23 940-291 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F GAINESVL TX
2019-05-22 208-207 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J BOISE ID

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.