NumberResearch Membership · Data 09/24/2026

Recent prefix assignments

349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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 31
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - IL 27
ONVOY, LLC - NJ 15
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
2022-09-08 431-698 not yet reported which blocks → TELUS Mobility 8303 Steinbach —
2022-09-08 438-970 not yet reported which blocks → Fibernetics Corporation 464D Ile-Perrot —
2022-09-08 438-971 not yet reported which blocks → Fibernetics Corporation 464D Lachine —
2022-09-08 438-972 not yet reported which blocks → Fibernetics Corporation 464D Roxboro —
2022-09-08 438-973 not yet reported which blocks → Fibernetics Corporation 464D Ste-Genevieve —
2022-09-08 509-224 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - WA 483E CHENEY WA
2022-09-08 531-287 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → UNITED STATES CELLULAR - NE 6263 AUBURN NE
2022-09-08 531-293 0–9 XXXall 10 · 5 holders which blocks → UNITED STATES CELLULAR - NE 6263 SCHUYLER NE
2022-09-08 650-672 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - CA 649C MILLBRAE CA
2022-09-08 650-708 0–9 XXXwhole prefix which blocks → ONVOY, LLC - CA 649C SSNFRNCSCO CA
2022-09-08 650-734 0–9 XXXwhole prefix which blocks → ONVOY, LLC - CA 649C REDWOOD CY CA
2022-09-08 747-338 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CA 649C GLENDALE CA
2022-09-08 769-292 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 COLUMBIA MS
2022-09-08 810-274 0–9 XXXall 10 · 2 holders which blocks → AT&T - LOCAL 7421 LAPEER MI
2022-09-08 825-751 not yet reported which blocks → Iristel Inc. 154E Rocky Mountain House —
2022-09-08 825-925 not yet reported which blocks → Videotron Ltd. 787G Edmonton —
2022-09-08 825-967 not yet reported which blocks → TELUS Mobility 8301 Edmonton —
2022-09-08 826-207 0XXX1XXX · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F UPPERVILLE VA
2022-09-08 828-573 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → METROPCS, INC. 5562 ARDEN NC
2022-09-08 831-388 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → ONVOY, LLC - CA 649C GREENFIELD CA
2022-09-08 858-338 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - CA 649C HARBSNALPN CA
2022-09-08 904-561 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H JACKSOLBCH FL
2022-09-08 951-618 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CA 649C RIVERSIDE CA
2022-09-08 980-384 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 CHARLOTTE NC
2022-09-08 980-416 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 CHARLOTTE NC
2022-09-07 234-357 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J YOUNGSTOWN OH
2022-09-07 249-557 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B Coldwater —
2022-09-07 252-682 0XXX1XXX2XXX5XXX6XXX8XXX · 2 holders which blocks → ONVOY, LLC - NC 638E NASHVILLE NC
2022-09-07 302-215 0–9 XXXall 10 · 4 holders which blocks → COMCAST IP PHONE, LLC 318J HOCKESSIN DE
2022-09-07 337-203 0XXX1XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LACASSINE LA
2022-09-07 346-587 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F CYPRESS TX
2022-09-07 380-254 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H WESTERVL OH
2022-09-07 409-297 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NDLDPTNCHS TX
2022-09-07 640-234 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PLAINSBORO NJ
2022-09-07 708-348 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - IL 984E CICERO IL
2022-09-07 718-929 0–9 XXXwhole prefix which blocks → CABLEVISION LIGHTPATH, INC. - NY 7126 NWYRCYZN13 NY
2022-09-07 763-357 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2022-09-07 828-860 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - NC 638E NEWLAND NC
2022-09-07 845-860 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → COMCAST IP PHONE, LLC 318J BREWSTER NY
2022-09-07 862-403 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 PASSAIC NJ
2022-09-07 910-981 0XXX1XXX2XXX3XXX8XXX9XXX · 2 holders which blocks → TWILIO INTERNATIONAL, INC. 506J RICHLANDS NC
2022-09-07 910-983 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - NC 638E WALLACE NC
2022-09-07 980-489 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - NC 638E WAXHAW NC
2022-09-07 980-508 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NC 638E MATTHEWS NC
2022-09-07 980-528 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NC 638E MOORESVL NC
2022-09-07 980-690 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NC 638E KANNAPOLIS NC
2022-09-07 980-728 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NC 638E DAVIDSON NC
2022-09-07 980-788 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NC 638E HUNTERSVL NC
2022-09-06 672-717 not yet reported which blocks → Iristel Inc. 154E Merritt —
2022-09-06 672-904 not yet reported which blocks → Iristel Inc. 154E Grand Forks —

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.