NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 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, 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
2020-06-02 607-350 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC- NY 384C DAVENPORT NY
2020-05-28 607-318 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC- NY 384C GREENWOOD NY
2020-04-30 607-317 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELMIRA NY
2020-02-05 607-394 0–9 XXXwhole prefix which blocks → LTE WIRELESS INC D/B/A LTE WIRELESS - NY 452J ADDISON NY
2019-10-15 607-314 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CSC WIRELESS, LLC 425J BINGHAMTON NY
2019-06-14 607-313 0–9 XXXall 10 · 4 holders which blocks → VOIP INNOVATIONS, LLC 597F BINGHAMTON NY
2019-03-22 607-866 6XXX which blocks → TERRA NOVA TELECOM INC. 145J BINGHAMTON NY
2019-02-21 607-309 0–9 XXXall 10 · 7 holders which blocks → EXIANT COMMUNICATIONS LLC 114J ENDICOTT NY
2019-02-15 607-837 2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CORETEL NEW YORK, INC. - NY 1215 HANCOCK NY
2019-02-14 607-384 2XXX4XXX9XXX · 2 holders which blocks → CORETEL NEW YORK, INC. - NY 1215 BURDETT NY
2019-02-14 607-440 0XXX2XXX4XXX9XXX · 4 holders which blocks → CORETEL NEW YORK, INC. - NY 1215 WHITESVL NY
2019-02-14 607-468 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CORETEL NEW YORK, INC. - NY 1215 MCLEAN NY
2019-02-14 607-946 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CORETEL NEW YORK, INC. - NY 1215 MILFORD NY
2019-02-14 607-990 0XXX1XXX2XXX3XXX4XXX7XXX9XXX · 4 holders which blocks → CORETEL NEW YORK, INC. - NY 1215 SPENCER NY
2018-10-25 607-312 0XXX1XXX2XXX3XXX8XXX9XXX · 4 holders which blocks → AIRUS, INC. - NY 363H BINGHAMTON NY
2018-06-18 607-608 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H BINGHAMTON NY
2018-05-30 607-308 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VONAGE AMERICA LLC 197D BINGHAMTON NY
2018-05-02 607-891 0–9 XXXall 10 · 7 holders which blocks → SEAMLESS GEOPORT COMM DBA MIDDLEBURGH TELEPHONE LD 506H COOPERSTN NY
2018-01-26 607-715 0XXX1XXX2XXX3XXX6XXX7XXX8XXX · 6 holders which blocks → DTC CABLE, INC. - NY 084J HOBART NY
2017-03-23 607-707 0XXX8XXX9XXX which blocks → COMMIO, LLC 939H BINGHAMTON NY
2017-03-17 607-357 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC- NY 384C ARKPORT NY
2017-03-17 607-360 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC- NY 384C CANISTEO NY
2017-03-17 607-361 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC- NY 384C CORNING NY
2017-03-17 607-364 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC- NY 384C DAVENPORT NY
2017-03-17 607-367 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC- NY 384C ELMIRA NY
2017-03-17 607-388 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → ONVOY, LLC- NY 384C HOBART NY
2017-03-17 607-389 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC- NY 384C HORNELL NY
2017-01-23 607-443 1XXX which blocks → TELENGY L.L.C. - NY 473G BINGHAMTON NY
2016-12-05 607-365 0–9 XXXall 10 · 4 holders which blocks → TELNYX LLC 073H BINGHAMTON NY
2016-05-13 607-306 0–9 XXXwhole prefix which blocks → ONVOY, LLC- NY 384C BINGHAMTON NY
2016-03-15 607-303 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J CHERRY VLY NY
2016-03-15 607-305 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 EDMESTON NY
2016-01-05 607-302 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ELMIRA NY
2015-12-28 607-325 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E OTEGO NY
2015-04-06 607-424 0–9 XXXall 10 · 6 holders which blocks → CATSKILLS COMMUNICATIONS, INC - NY 360H GRANDGORGE NY
2015-02-11 607-381 0XXX1XXX8XXX9XXX · 3 holders which blocks → EMPIRE LONG DISTANCE CORPORATION 087H BINGHAMTON NY
2014-10-20 607-374 0XXX1XXX8XXX9XXX · 3 holders which blocks → AIRUS, INC. - NY 363H BINGHAMTON NY
2014-09-26 607-442 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ELMIRA NY
2014-09-08 607-386 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ONEONTA NY
2014-07-29 607-393 0XXX7XXX8XXX9XXX · 2 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J BINGHAMTON NY
2014-07-01 607-930 0XXX1XXX3XXX4XXX7XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BINGHAMTON NY
2014-06-26 607-385 0–9 XXXall 10 · 10 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 HORNELL NY
2013-04-04 607-383 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E CAMPBELL NY
2013-04-04 607-463 0–9 XXXall 10 · 8 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E CORNING NY
2013-04-04 607-536 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E SAVONA NY
2013-03-28 607-298 0–9 XXXall 10 · 6 holders which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC - NY 932G DEPOSIT NY
2013-03-18 607-399 0–9 XXXall 10 · 5 holders which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC - NY 932G HARPURSVL NY
2013-03-18 607-499 0XXX2XXX3XXX4XXX5XXX6XXX9XXX · 5 holders which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC - NY 932G WINDSOR NY
2013-03-04 607-297 0–9 XXXall 10 · 2 holders which blocks → NUSO, LLC 551G BINGHAMTON NY
2013-02-27 607-677 0XXX1XXX3XXX4XXX5XXX6XXX · 3 holders which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC - NY 932G BINGHAMTON NY

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.