NumberResearch Membership · Data 09/21/2026

Recent prefix assignments

338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026

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. 38
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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
2022-12-15 941-440 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H PTCHARLOTT FL
2022-12-15 943-234 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - GA 067D MONROE GA
2022-12-15 945-283 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2022-12-15 980-490 0XXX1XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - NC 638E NEW LONDON NC
2022-12-15 980-789 0XXX1XXX8XXX · 2 holders which blocks → ONVOY, LLC - NC 638E GOOSECREEK NC
2022-12-14 220-243 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ATHENS OH
2022-12-14 321-469 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2022-12-14 464-208 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2022-12-14 531-306 0XXX1XXX7XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NE 3233 MURRAY NE
2022-12-14 602-342 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2022-12-14 712-391 0XXX7XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IA 9877 ANTHON IA
2022-12-14 754-298 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 HOLLYWOOD FL
2022-12-14 826-213 0XXX1XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 SPOTSYLVAN VA
2022-12-14 828-601 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HICKORY NC
2022-12-14 948-205 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NWPTNWSZN2 VA
2022-12-13 249-403 not yet reported which blocks → Fibernetics Corporation 464D Bracebridge —
2022-12-13 249-420 not yet reported which blocks → Fibernetics Corporation 464D Gravenhurst —
2022-12-13 260-699 0–9 XXXall 10 · 5 holders which blocks → TERRA NOVA TELECOM INC. 145J FORT WAYNE IN
2022-12-13 314-417 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2022-12-13 321-416 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2022-12-13 346-609 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 BAMMEL TX
2022-12-13 346-612 0–9 XXXall 10 · 5 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 CLEVELAND TX
2022-12-13 352-767 1XXX2XXX6XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 ASTOR FL
2022-12-13 368-645 not yet reported which blocks → TELUS Mobility 8301 Fort McMurray —
2022-12-13 386-358 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FLAGLERBCH FL
2022-12-13 431-368 not yet reported which blocks → Fibernetics Corporation 464D Stonewall —
2022-12-13 561-918 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E BOCA RATON FL
2022-12-13 606-290 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CORBIN KY
2022-12-13 689-288 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E KISSIMMEE FL
2022-12-13 719-697 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CO 6118 MONTEVISTA CO
2022-12-13 727-428 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E NWPTRICHEY FL
2022-12-13 727-620 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E STPETERSBG FL
2022-12-13 754-296 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E FTLAUDERDL FL
2022-12-13 810-200 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2022-12-13 845-924 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NANUET NY
2022-12-13 929-659 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN13 NY
2022-12-13 930-522 2XXX which blocks → TERRA NOVA TELECOM INC. 145J TERREHAUTE IN
2022-12-13 952-256 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2022-12-12 272-308 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWMILFORD PA
2022-12-12 341-224 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 FRNK MAIN CA
2022-12-12 430-370 0XXX1XXX3XXX8XXX · 3 holders which blocks → ONVOY, LLC - TX 903C GARY TX
2022-12-12 472-227 2XXX3XXX7XXX · 2 holders which blocks → ONVOY, LLC - NC 638E MT GILEAD NC
2022-12-12 534-208 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2022-12-12 564-228 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 ABERDEEN WA
2022-12-12 828-780 0XXX1XXX2XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLC - NC 638E BAKERSVL NC
2022-12-12 856-538 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 BRIDGETON NJ
2022-12-12 862-412 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 NEWARK NJ
2022-12-12 984-318 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E RALEIGH NC
2022-12-09 216-490 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDEPNDNCE OH
2022-12-09 385-509 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - UT 117F SALT LAKE UT

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.