NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 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, all time — NPA 607
VERIZON NEW YORK, INC. 111
TWC IP ENABLED SERVICES, LLC 51
CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 50
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 34
ONVOY, LLC- NY 33
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
2022-02-28 607-526 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ELMIRA NY
2021-12-10 607-413 9XXX which blocks → BOOST SUBSCRIBERCO L.L.C. 490J BINGHAMTON NY
2021-11-08 607-412 2XXX6XXX9XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H LOCKWOOD NY
2021-11-08 607-446 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 CHENANGBDG NY
2021-10-13 607-955 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H GROTON NY
2021-10-11 607-663 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H ONEONTA NY
2021-10-06 607-410 0XXX2XXX4XXX5XXX9XXX · 4 holders which blocks → ONVOY, LLC- NY 384C ALMOND NY
2021-09-17 607-409 0XXX3XXX4XXX6XXX7XXX9XXX · 5 holders which blocks → VONAGE AMERICA LLC 197D WATKISGLEN NY
2021-08-11 607-408 5XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BINGHAMTON NY
2021-07-28 607-406 2XXX3XXX4XXX6XXX9XXX · 3 holders which blocks → ONVOY, LLC- NY 384C AFTON NY
2021-07-08 607-396 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLC- NY 384C WAVERLY NY
2021-06-17 607-395 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC- NY 384C DUNDEE NY
2021-06-07 607-617 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H NICHOLS NY
2021-06-07 607-620 0XXX2XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H OTEGO NY
2021-05-26 607-405 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NORWICH NY
2021-05-12 607-390 0–9 XXXall 10 · 6 holders which blocks → TELNYX LLC 073H SAVONA NY
2021-05-12 607-457 0XXX2XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H GRANDGORGE NY
2021-05-12 607-487 0XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H HARTWICK NY
2021-05-12 607-575 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H MAINE NY
2021-05-12 607-747 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H LINDLEY NY
2021-04-12 607-404 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → ONVOY SPECTRUM, LLC 624H CANASERAGA NY
2021-04-12 607-447 4XXX5XXX6XXX9XXX · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H MCLEAN NY
2021-04-12 607-706 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H CHERRY VLY NY
2021-04-12 607-787 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H EDMESTON NY
2021-04-01 607-466 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H ARKPORT NY
2021-04-01 607-507 0–9 XXXall 10 · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H AVOCA NY
2021-03-31 607-407 2XXX4XXX6XXX7XXX9XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H LANSING NY
2021-03-31 607-606 1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H NEWFIELD NY
2021-03-30 607-380 0–9 XXXall 10 · 6 holders which blocks → HD CARRIER LLC 321J CAMPBELL NY
2021-03-17 607-688 0XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H MILFORD NY
2021-03-17 607-944 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H HORNELL NY
2021-02-18 607-789 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H CANISTEO NY
2021-02-08 607-670 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC- NY 384C STAMFORD NY
2021-01-27 607-402 0XXX1XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → STRATUS NETWORKS 495J CORTLAND NY
2020-12-21 607-940 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC- NY 384C BINGHAMTON NY
2020-12-17 607-667 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H CORNING NY
2020-11-11 607-401 8XXX9XXX which blocks → HD CARRIER LLC 321J BINGHAMTON NY
2020-10-14 607-922 0XXX1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H ROXBURY NY
2020-09-21 607-477 0XXX2XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H APALACHIN NY
2020-09-21 607-577 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H BATH NY
2020-09-21 607-599 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → FRACTEL, LLC 965H CATON NY
2020-09-08 607-370 0XXX1XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → IP HORIZON LLC 515J BINGHAMTON NY
2020-09-01 607-362 0XXX1XXX2XXX3XXX4XXX7XXX9XXX · 6 holders which blocks → NUSO, LLC 478J WORCESTER NY
2020-08-04 607-966 2XXX3XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H HAMMONDSPT NY
2020-07-08 607-465 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H CAMERON NY
2020-07-08 607-567 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H SCHENEVUS NY
2020-07-08 607-602 0XXX1XXX2XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → ONVOY, LLC- NY 384C BIG FLATS NY
2020-07-08 607-833 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H OWEGO NY
2020-07-02 607-788 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 2 holders which blocks → FRACTEL, LLC 965H BINGHAMTON NY
2020-06-16 607-601 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC- NY 384C ONEONTA NY

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.