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
2021-10-05 689-260 0–9 XXXall 10 · 4 holders which blocks → HD CARRIER LLC 321J KISSIMMEE FL
2021-10-05 708-815 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CICERO IL
2021-10-05 708-847 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC 224C CRETE IL
2021-10-05 737-305 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BUDA TX
2021-10-05 742-800 not yet reported which blocks → Beanfield Technologies Inc. 575G Sutton —
2021-10-05 742-900 not yet reported which blocks → Beanfield Technologies Inc. 575G Unionville —
2021-10-05 742-901 not yet reported which blocks → Beanfield Technologies Inc. 575G Uxbridge —
2021-10-05 804-689 0–9 XXXall 10 · 3 holders which blocks → HD CARRIER LLC 321J PETERSBURG VA
2021-10-05 816-481 0–9 XXXall 10 · 3 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K LONEJACK MO
2021-10-05 838-258 0XXX4XXX5XXX8XXX · 3 holders which blocks → ONVOY, LLC- NY 384C FREEHOLD NY
2021-10-05 912-620 0–9 XXXall 10 · 2 holders which blocks → HD CARRIER LLC 321J JESUP GA
2021-10-05 914-508 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 WSCHSTZN09 NY
2021-10-05 914-520 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 WSCHSTZN01 NY
2021-10-05 914-521 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 WSCHSTZN08 NY
2021-10-05 947-524 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2021-10-05 959-228 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - CT 639C CORNWALL CT
2021-10-05 959-229 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - CT 6624 TORRINGTON CT
2021-10-05 959-231 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - CT 6624 DEEP RIVER CT
2021-10-05 984-290 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 MEBANE NC
2021-10-04 225-459 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 GONZALES LA
2021-10-04 302-582 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 WILMINGTON DE
2021-10-04 361-281 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 C CHRISTI TX
2021-10-04 365-430 not yet reported which blocks → Beanfield Technologies Inc. 575G Markham —
2021-10-04 365-750 not yet reported which blocks → Beanfield Technologies Inc. 575G Richmond Hill —
2021-10-04 365-751 not yet reported which blocks → Beanfield Technologies Inc. 575G Newmarket —
2021-10-04 424-469 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 CMTN GRDN CA
2021-10-04 425-340 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 ISSAQUAH WA
2021-10-04 463-673 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J FISHERS IN
2021-10-04 479-465 1XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → ONVOY, LLC - AR 348F ATKINS AR
2021-10-04 479-482 0XXX1XXX2XXX3XXX4XXX · 4 holders which blocks → ONVOY, LLC - AR 348F DOVER AR
2021-10-04 479-483 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - AR 348F WINSLOW AR
2021-10-04 501-471 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FERNDALE AR
2021-10-04 501-497 0–9 XXXall 10 · 8 holders which blocks → ONVOY, LLC - AR 348F CONWAY AR
2021-10-04 517-378 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 POTTERVL MI
2021-10-04 520-592 0–9 XXXall 10 · 4 holders which blocks → TELNYX LLC 073H NOGALES AZ
2021-10-04 602-835 0–9 XXXall 10 · 4 holders which blocks → TELNYX LLC 073H PHOENIX AZ
2021-10-04 620-558 0XXX1XXX5XXX8XXX · 4 holders which blocks → CSC WIRELESS, LLC 425J RIVERTON KS
2021-10-04 623-278 0–9 XXXall 10 · 3 holders which blocks → TELNYX LLC 073H PHOENIX AZ
2021-10-04 681-360 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2021-10-04 742-989 not yet reported which blocks → Beanfield Technologies Inc. 575G Aurora —
2021-10-04 742-990 not yet reported which blocks → Beanfield Technologies Inc. 575G Bethesda —
2021-10-04 742-991 not yet reported which blocks → Beanfield Technologies Inc. 575G Bolton —
2021-10-04 742-992 not yet reported which blocks → Beanfield Technologies Inc. 575G Claremont —
2021-10-04 742-993 not yet reported which blocks → Beanfield Technologies Inc. 575G Gormley —
2021-10-04 742-994 not yet reported which blocks → Beanfield Technologies Inc. 575G Keswick —
2021-10-04 742-995 not yet reported which blocks → Beanfield Technologies Inc. 575G King City —
2021-10-04 742-996 not yet reported which blocks → Beanfield Technologies Inc. 575G Kleinburg —
2021-10-04 742-997 not yet reported which blocks → Beanfield Technologies Inc. 575G Maple —
2021-10-04 742-998 not yet reported which blocks → Beanfield Technologies Inc. 575G Mount Albert —
2021-10-04 782-778 not yet reported which blocks → TELUS Mobility 8303 Truro —

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.