NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 — NPA 463
ONVOY, LLC - IN 1
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
2026-08-27 463-344 0XXX1XXX4XXX · 2 holders which blocks → ONVOY, LLC - IN 097D NOBLESVL IN
2026-07-21 463-341 0XXX1XXX2XXX7XXX9XXX · 3 holders which blocks → ONVOY, LLC - IN 097D CARMEL IN
2026-07-21 463-342 0XXX which blocks → ONVOY, LLC - IN 097D CLAYTON IN
2026-04-27 463-339 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - IN 097D INDIANAPLS IN
2025-09-24 463-331 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D INDIANAPLS IN
2025-02-06 463-324 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - IN 097D INDIANAPLS IN
2025-01-08 463-323 0XXX1XXX3XXX8XXX · 2 holders which blocks → ONVOY, LLC - IN 097D WESTFIELD IN
2024-06-12 463-313 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - IN 097D GREENWOOD IN
2024-05-14 463-309 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - IN 097D ACTON IN
2024-05-14 463-310 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - IN 097D CICERO IN
2024-04-29 463-307 0–9 XXXwhole prefix which blocks → ONVOY, LLC - IN 097D ZIONSVILLE IN
2024-04-18 463-306 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - IN 097D FISHERS IN
2024-03-20 463-305 0XXX1XXX7XXX8XXX9XXX which blocks → ONVOY, LLC - IN 097D FORTVILLE IN
2024-03-19 463-304 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - IN 097D INDIANAPLS IN
2024-02-12 463-298 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D INDIANAPLS IN
2024-01-12 463-294 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - IN 097D BROWNSBURG IN
2024-01-12 463-295 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - IN 097D OAKLANDON IN
2024-01-12 463-296 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D WESTNEWTON IN
2024-01-05 463-293 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D CARMEL IN
2023-12-08 463-291 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - IN 097D INDIANAPLS IN
2023-08-23 463-288 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D DANVILLE IN
2023-08-23 463-289 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D CUMBERLAND IN
2023-06-23 463-285 0XXX1XXX2XXX3XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - IN 097D SHERIDAN IN
2023-06-23 463-286 2XXX which blocks → ONVOY, LLC - IN 097D MARIETTA IN
2023-06-23 463-287 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - IN 097D NOBLESVL IN
2023-04-03 463-363 0–9 XXXwhole prefix which blocks → ONVOY, LLC - IN 097D ZIONSVILLE IN
2022-11-09 463-634 0–9 XXXwhole prefix which blocks → ONVOY, LLC - IN 097D INDIANAPLS IN
2021-12-03 463-264 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D FORTVILLE IN
2021-11-04 463-262 0XXX1XXX2XXX3XXX6XXX · 2 holders which blocks → ONVOY, LLC - IN 097D PITTSBORO IN
2021-06-18 463-266 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - IN 097D GREENFIELD IN
2021-06-11 463-252 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D ZIONSVILLE IN
2021-06-11 463-257 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - IN 097D SHERIDAN IN
2021-05-14 463-263 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - IN 097D ACTON IN
2020-12-16 463-255 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - IN 097D PLAINFIELD IN
2020-10-14 463-243 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - IN 097D WESTFIELD IN
2020-10-14 463-244 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - IN 097D BARGERSVL IN
2020-01-14 463-226 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D CLAYTON IN
2020-01-14 463-227 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - IN 097D PITTSBORO IN
2018-12-07 463-219 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D ACTON IN
2018-12-07 463-220 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D SHERIDAN IN
2018-10-11 463-214 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - IN 097D CICERO IN
2018-02-23 463-208 0–9 XXXwhole prefix which blocks → ONVOY, LLC - IN 097D BARGERSVL IN
2018-02-13 463-999 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D INDIANAPLS IN
2017-09-22 463-777 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D INDIANAPLS IN
2017-09-11 463-222 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D FRANKLIN IN
2017-09-11 463-333 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - IN 097D CARMEL IN
2017-09-11 463-444 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - IN 097D GREENWOOD IN
2017-09-11 463-666 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - IN 097D MOORESVL IN
2017-09-11 463-888 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - IN 097D BROWNSBURG IN
2017-08-18 463-205 0–9 XXXwhole prefix which blocks → ONVOY, LLC - IN 097D INDIANAPLS IN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.