NumberResearch Membership · Data 09/25/2026

Recent prefix assignments

337 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/25/2026

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
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 25
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 12
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
2021-10-11 931-350 0–9 XXXall 10 · 8 holders which blocks → BANDWIDTH.COM CLEC, LLC - TN 124F COLUMBIA TN
2021-10-11 934-206 0–9 XXXall 10 · 4 holders which blocks → VONAGE AMERICA LLC 197D DEER PARK NY
2021-10-11 941-280 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E ENGLEWOOD FL
2021-10-08 209-880 0–9 XXXall 10 · 6 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J MANTECA CA
2021-10-08 225-462 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 DONALDSNVL LA
2021-10-08 305-429 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 NORTH DADE FL
2021-10-08 305-449 0–9 XXXall 10 · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H KEYS FL
2021-10-08 305-701 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - FL 937C NORTH DADE FL
2021-10-08 437-422 not yet reported which blocks → Bell Mobility 6574 Toronto —
2021-10-08 437-518 not yet reported which blocks → Bell Mobility 6574 Toronto —
2021-10-08 437-960 not yet reported which blocks → Bell Mobility 6574 Toronto —
2021-10-08 516-920 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2021-10-08 540-873 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAFFORD VA
2021-10-08 540-914 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FRONTROYAL VA
2021-10-08 561-759 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2021-10-08 561-764 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 WPALMBEACH FL
2021-10-08 561-765 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C BOCA RATON FL
2021-10-08 610-773 0–9 XXXall 10 · 4 holders which blocks → VONAGE AMERICA LLC 197D PHPHSBZN10 PA
2021-10-08 662-818 0XXX1XXX8XXX9XXX · 4 holders which blocks → METROPCS, INC. 5562 DUCK HILL MS
2021-10-08 727-746 0–9 XXXall 10 · 7 holders which blocks → CORETEL FLORIDA, INC. - FL 481F STPETERSBG FL
2021-10-08 813-896 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E PLANT CITY FL
2021-10-08 848-318 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 SPRINGLAKE NJ
2021-10-08 848-319 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 METUCHEN NJ
2021-10-08 862-384 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BLOOMFIELD NJ
2021-10-08 863-388 0–9 XXXall 10 · 4 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J AVON PARK FL
2021-10-08 864-749 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ANDERSON SC
2021-10-08 929-995 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 NWYRCYZN08 NY
2021-10-08 929-997 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 NWYRCYZN09 NY
2021-10-08 986-210 0–9 XXXall 10 · 3 holders which blocks → TELNYX LLC 073H BOISE ID
2021-10-07 224-447 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 WAUKEGAN IL
2021-10-07 224-809 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 DESPLAINES IL
2021-10-07 239-375 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 NAPLES FL
2021-10-07 239-376 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 IMMOKALEE FL
2021-10-07 239-378 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 NAPLES FL
2021-10-07 239-379 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 FORT MYERS FL
2021-10-07 240-861 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ASHTON236 MD
2021-10-07 240-869 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN10 MD
2021-10-07 240-871 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 LXTNPKGRML MD
2021-10-07 240-872 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN6 MD
2021-10-07 240-879 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN4 MD
2021-10-07 332-254 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2021-10-07 413-435 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 CHICOPEE MA
2021-10-07 434-789 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 EMPORIA VA
2021-10-07 445-221 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHLDLPHZN1 PA
2021-10-07 582-710 0XXX1XXX2XXX3XXX4XXX9XXX · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H OIL CITY PA
2021-10-07 602-838 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2021-10-07 605-502 0XXX1XXX2XXX3XXX · 3 holders which blocks → TELNYX LLC 073H PIERRE SD
2021-10-07 623-274 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2021-10-07 629-261 0–9 XXXall 10 · 2 holders which blocks → HD CARRIER LLC 321J MURFREESBO TN
2021-10-07 629-263 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 SPRINGFLD TN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.