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 646
OMNIPOINT COMMUNICATIONS, INC. - NY 192
VERIZON NEW YORK, INC. 92
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 84
NEW CINGULAR WIRELESS PCS, LLC - DC 72
PAETEC ITEL, LLC 66
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
2023-11-15 646-551 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H NWYRCYZN01 NY
2023-11-15 646-914 0–9 XXXall 10 · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H NWYRCYZN01 NY
2023-10-26 646-917 0–9 XXXall 10 · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H NWYRCYZN01 NY
2023-07-05 646-718 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H NWYRCYZN01 NY
2023-06-26 646-900 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN01 NY
2023-06-02 646-800 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN01 NY
2023-05-23 646-347 0–9 XXXwhole prefix which blocks → ONVOY, LLC- NY 384C NWYRCYZN01 NY
2023-02-28 646-212 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H NWYRCYZN01 NY
2022-09-29 646-646 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN01 NY
2022-09-26 646-332 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H NWYRCYZN01 NY
2022-09-26 646-516 0–9 XXXwhole prefix which blocks → ONVOY, LLC- NY 384C NWYRCYZN01 NY
2022-09-26 646-631 0–9 XXXwhole prefix which blocks → ONVOY, LLC- NY 384C NWYRCYZN01 NY
2022-07-14 646-566 0–9 XXXwhole prefix which blocks → ONVOY SPECTRUM, LLC 624H NWYRCYZN01 NY
2022-07-14 646-814 0–9 XXXwhole prefix which blocks → ONVOY, LLC- NY 384C NWYRCYZN01 NY
2019-12-23 646-550 0–9 XXXwhole prefix which blocks → LTE WIRELESS INC D/B/A LTE WIRELESS - NY 452J NWYRCYZN01 NY
2019-12-13 646-540 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2019-05-21 646-970 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN01 NY
2019-04-19 646-990 0–9 XXXwhole prefix which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2019-03-29 646-993 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2019-02-21 646-995 0–9 XXXall 10 · 3 holders which blocks → EXIANT COMMUNICATIONS LLC 114J NWYRCYZN01 NY
2019-02-15 646-989 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2019-01-18 646-994 0–9 XXXall 10 · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NWYRCYZN01 NY
2018-10-22 646-980 0–9 XXXall 10 · 3 holders which blocks → AIRUS, INC. - NY 363H NWYRCYZN01 NY
2018-10-22 646-991 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2018-10-01 646-987 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2018-09-20 646-978 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2018-09-17 646-974 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN01 NY
2018-08-17 646-969 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2018-06-08 646-960 0–9 XXXall 10 · 4 holders which blocks → ADVANCED TELECOM SOLUTIONS, LLC 181J NWYRCYZN01 NY
2018-05-17 646-916 0–9 XXXall 10 · 3 holders which blocks → CABLEVISION LIGHTPATH, INC. - NY 7126 NWYRCYZN01 NY
2018-05-09 646-908 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2018-04-10 646-913 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2018-03-01 646-907 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN01 NY
2018-01-19 646-906 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2017-12-22 646-984 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2017-10-10 646-903 0–9 XXXwhole prefix which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2017-10-02 646-899 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2017-10-02 646-901 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2017-09-27 646-877 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN01 NY
2017-09-26 646-819 0–9 XXXall 10 · 3 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
2017-07-27 646-818 0–9 XXXall 10 · 4 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
2017-06-26 646-986 0–9 XXXwhole prefix which blocks → METROPCS, INC. 5562 NWYRCYZN01 NY
2017-06-26 646-988 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2017-05-08 646-889 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2017-04-20 646-909 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2017-04-10 646-905 0–9 XXXall 10 · 4 holders which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2017-03-23 646-949 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H NWYRCYZN01 NY
2017-03-09 646-904 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 NWYRCYZN01 NY
2017-01-23 646-983 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2017-01-19 646-817 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 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.