NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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 26
Rogers Communications Canada Inc. (Wireless) 23
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
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2021-07-02 734-409 0XXX7XXX · 2 holders which blocks → ONVOY, LLCV - MI 543C NOSYLVANIA MI
2021-07-02 754-270 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HOLLYWOOD FL
2021-07-02 769-262 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E CLINTON MS
2021-07-02 785-603 0XXX1XXX2XXX3XXX · 4 holders which blocks → ONVOY, LLC - KS 205F JEWELL KS
2021-07-02 785-604 0XXX1XXX2XXX4XXX · 4 holders which blocks → ONVOY, LLC - KS 205F MARQUETTE KS
2021-07-02 785-605 0XXX1XXX5XXX · 3 holders which blocks → ONVOY, LLC - KS 205F NORCATUR KS
2021-07-02 785-606 0XXX6XXX · 2 holders which blocks → ONVOY, LLC - KS 205F SO LIBERTY KS
2021-07-02 785-607 0XXX7XXX · 2 holders which blocks → ONVOY, LLC - KS 205F SOBARNESTN KS
2021-07-02 810-500 0XXX2XXX3XXX5XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLCV - MI 543C HADLEY MI
2021-07-02 813-797 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2021-07-02 825-448 not yet reported which blocks → Bell Mobility 6574 Calgary —
2021-07-02 920-270 0XXX1XXX2XXX6XXX7XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H EDEN WI
2021-07-02 959-227 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - CT 639C CANAAN CT
2021-07-02 989-380 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLCV - MI 543C BAY PORT MI
2021-07-01 213-502 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 MONTEBELLO CA
2021-07-01 219-284 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - IN 097D MICHIGANCY IN
2021-07-01 223-260 0–9 XXXall 10 · 3 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 YORK PA
2021-07-01 223-334 0XXX1XXX3XXX4XXX6XXX9XXX · 5 holders which blocks → ONVOY, LLC - PA 547E MILLERSBG PA
2021-07-01 239-366 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BONITA SPG FL
2021-07-01 262-772 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 BURLINGTON WI
2021-07-01 272-244 0XXX1XXX2XXX3XXX4XXX6XXX9XXX · 5 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 SUNBURY PA
2021-07-01 316-465 0XXX5XXX8XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H TOWANDA KS
2021-07-01 317-799 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - IN 105F DANVILLE IN
2021-07-01 385-407 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-488 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H MIDVALE UT
2021-07-01 385-667 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H AMERCNFORK UT
2021-07-01 385-699 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H SALT LAKE UT
2021-07-01 385-732 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H OGDEN UT
2021-07-01 385-786 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H KAYSVILLE UT
2021-07-01 385-899 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H PAYSON UT
2021-07-01 401-362 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 PAWTUCKET RI
2021-07-01 415-907 0–9 XXXwhole prefix which blocks → ONVOY, LLC - CA 649C SNFC JUNPR CA
2021-07-01 423-689 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - TN 124F BRISTOL TN
2021-07-01 435-348 0XXX1XXX2XXX6XXX8XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H FILLMORE UT
2021-07-01 435-356 4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H DELTA UT
2021-07-01 435-600 0XXX1XXX3XXX6XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H PAROWAN UT
2021-07-01 435-667 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H BRIGHAM CY UT
2021-07-01 470-760 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BUFORD GA
2021-07-01 470-820 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CUMMING GA
2021-07-01 520-482 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 TUCSON AZ
2021-07-01 562-532 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 LONG BEACH CA
2021-07-01 602-807 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 PHOENIX AZ
2021-07-01 623-273 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 PHOENIX AZ
2021-07-01 657-509 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ANA CA
2021-07-01 708-219 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CICERO IL
2021-07-01 716-415 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC- NY 384C WILLIAMSVL NY
2021-07-01 773-352 0–9 XXXwhole prefix which blocks → ONVOY, LLC 224C CHICGOZN03 IL
2021-07-01 804-618 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ASHLAND VA
2021-07-01 820-204 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-01 820-205 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 NEWBURYPRK CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.