NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
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
2021-10-06 947-955 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 PONTIAC MI
2021-10-05 309-618 8XXX9XXX · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H GALVA IL
2021-10-05 309-904 4XXX which blocks → ONVOY, LLC 224C JOY IL
2021-10-05 309-905 5XXX which blocks → ONVOY, LLC 224C NEW BOSTON IL
2021-10-05 309-908 0XXX8XXX · 2 holders which blocks → ONVOY, LLC 224C WASHBURN IL
2021-10-05 309-915 0XXX5XXX6XXX · 2 holders which blocks → ONVOY, LLC 224C TREMONT IL
2021-10-05 321-371 0–9 XXXall 10 · 3 holders which blocks → METROPCS NETWORKS, LLC 899D TITUSVILLE FL
2021-10-05 321-374 0–9 XXXall 10 · 3 holders which blocks → METROPCS NETWORKS, LLC 899D MELBOURNE FL
2021-10-05 365-224 not yet reported which blocks → Beanfield Technologies Inc. 575G Woodbridge —
2021-10-05 365-534 not yet reported which blocks → Beanfield Technologies Inc. 575G Palgrave —
2021-10-05 365-752 not yet reported which blocks → Beanfield Technologies Inc. 575G Nobleton —
2021-10-05 365-753 not yet reported which blocks → Beanfield Technologies Inc. 575G Oak Ridges —
2021-10-05 365-920 not yet reported which blocks → Beanfield Technologies Inc. 575G Thornhill —
2021-10-05 448-600 0XXX2XXX6XXX7XXX9XXX · 2 holders which blocks → ONVOY, LLC - FL 937C JAY FL
2021-10-05 448-900 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C PACE FL
2021-10-05 470-856 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA SO GA
2021-10-05 470-897 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2021-10-05 475-302 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CT 639C BRIDGEPORT CT
2021-10-05 475-304 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - CT 639C HUNTINGTON CT
2021-10-05 475-308 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - CT 6624 NEW HAVEN CT
2021-10-05 559-716 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 MADERA CA
2021-10-05 680-232 0XXX2XXX3XXX4XXX9XXX · 4 holders which blocks → ONVOY, LLC- NY 384C BRANCHPORT NY
2021-10-05 680-233 0XXX1XXX2XXX3XXX9XXX · 4 holders which blocks → ONVOY, LLC- NY 384C NATURALBDG NY
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

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.