NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 28
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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
2023-06-28 718-988 0–9 XXXwhole prefix which blocks → ONVOY, LLC- NY 384C NWYRCYZN03 NY
2023-06-28 786-949 0–9 XXXall 10 · 4 holders which blocks → CABLEVISION LIGHTPATH, LLC 472K HOMESTEAD FL
2023-06-28 786-951 0–9 XXXall 10 · 4 holders which blocks → CABLEVISION LIGHTPATH, LLC 472K KEYS FL
2023-06-28 786-952 0–9 XXXall 10 · 3 holders which blocks → CABLEVISION LIGHTPATH, LLC 472K PERRINE FL
2023-06-28 956-736 0–9 XXXall 10 · 3 holders which blocks → BOOST SUBSCRIBERCO L.L.C. 490J LAREDO TX
2023-06-27 209-515 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - CA 649C SUTTER CRK CA
2023-06-27 229-610 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D BAINBRIDGE GA
2023-06-27 229-614 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D THOMASVL GA
2023-06-27 229-617 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D CUTHBERT GA
2023-06-27 229-620 2XXX3XXX · 2 holders which blocks → ONVOY, LLC - GA 067D IRWINVILLE GA
2023-06-27 334-902 0XXX which blocks → BOOST SUBSCRIBERCO L.L.C. 490J HAYNEVILLE AL
2023-06-27 337-773 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H BROUSSARD LA
2023-06-27 472-222 1XXX2XXX · 2 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K WHITE OAK NC
2023-06-27 478-373 1XXX2XXX · 2 holders which blocks → ONVOY, LLC - GA 067D LOUISVILLE GA
2023-06-27 478-380 0XXX1XXX2XXX7XXX8XXX · 3 holders which blocks → ONVOY, LLC - GA 067D MONTEZUMA GA
2023-06-27 478-381 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - GA 067D GRAY GA
2023-06-27 531-328 0XXX1XXX2XXX3XXX4XXX8XXX · 5 holders which blocks → ONVOY, LLC - NE 549E FAIRBURY NE
2023-06-27 531-332 0XXX3XXX · 2 holders which blocks → ONVOY, LLC - NE 549E OSCEOLA NE
2023-06-27 640-250 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 CRANBURY NJ
2023-06-27 656-219 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C TAMPAWST FL
2023-06-27 656-220 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C TAMPAEST FL
2023-06-27 656-221 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C TAMPANTH FL
2023-06-27 661-517 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CA 649C SNCA SGCC CA
2023-06-27 661-751 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CA 649C BKFD SOUTH CA
2023-06-27 706-706 0XXX2XXX4XXX7XXX8XXX · 2 holders which blocks → ONVOY, LLC - GA 067D CARNESVL GA
2023-06-27 719-514 0XXX3XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLC - CO 026D BUENAVISTA CO
2023-06-27 719-518 3XXX which blocks → ONVOY, LLC - CO 026D CENTER CO
2023-06-27 726-780 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2023-06-27 726-781 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2023-06-27 726-782 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2023-06-27 726-783 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2023-06-27 726-784 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2023-06-27 726-785 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2023-06-27 726-786 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2023-06-27 726-787 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2023-06-27 726-788 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2023-06-27 726-789 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SANANTONIO TX
2023-06-27 727-405 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C STPETERSBG FL
2023-06-27 762-361 0XXX2XXX · 2 holders which blocks → ONVOY, LLC - GA 067D COLBERT GA
2023-06-27 762-364 0XXX2XXX · 2 holders which blocks → ONVOY, LLC - GA 067D WHITE PL GA
2023-06-27 786-947 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C PERRINE FL
2023-06-27 912-738 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D HINESVILLE GA
2023-06-27 912-740 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D WAYCROSS GA
2023-06-27 912-743 0XXX2XXX · 2 holders which blocks → ONVOY, LLC - GA 067D ST GEORGE GA
2023-06-27 941-324 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C BRADENTON FL
2023-06-27 941-326 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C SARASOTA FL
2023-06-26 212-900 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN01 NY
2023-06-26 224-262 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC 224C DESPLAINES IL
2023-06-26 224-309 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC 224C NORTHBROOK IL
2023-06-26 224-312 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC 224C ROSELLE IL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.