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 347
OMNIPOINT COMMUNICATIONS, INC. - NY 221
METROPCS, INC. 131
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 93
NEW CINGULAR WIRELESS PCS, LLC - DC 74
LEVEL 3 COMMUNICATIONS, LLC - NY 57
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
— 347-597 0–9 XXXall 10 · 3 holders which blocks → CSC VOICE, LLC 612K NWYRCYZN03 NY
— 347-599 0–9 XXXall 10 · 3 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN06 NY
— 347-609 0–9 XXXall 10 · 5 holders which blocks → NUSO, LLC 551G NWYRCYZN15 NY
— 347-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 347-613 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN06 NY
— 347-623 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN06 NY
— 347-624 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN08 NY
— 347-626 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J NWYRCYZN12 NY
— 347-628 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN07 NY
— 347-629 0–9 XXXall 10 · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H NWYRCYZN13 NY
— 347-630 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN15 NY
— 347-632 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN12 NY
— 347-643 0XXX which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 347-644 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 NWYRCYZN10 NY
— 347-645 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN06 NY
— 347-649 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J NWYRCYZN08 NY
— 347-655 not yet reported which blocks → AMERICAN NETWORK, INC. 8667 NWYRCYZN05 NY
— 347-660 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 347-661 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN06 NY
— 347-665 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN08 NY
— 347-668 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN07 NY
— 347-671 0–9 XXXall 10 · 4 holders which blocks → CABLEVISION LIGHTPATH, INC. - NY 7126 NWYRCYZN14 NY
— 347-672 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
— 347-675 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN07 NY
— 347-678 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN06 NY
— 347-683 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN06 NY
— 347-688 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN03 NY
— 347-692 0–9 XXXall 10 · 3 holders which blocks → YMAX COMMUNICATIONS CORP. - NY 282E NWYRCYZN05 NY
— 347-693 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN06 NY
— 347-700 not yet reported which blocks → NY
— 347-710 not yet reported which blocks → PAETEC ITEL, LLC 829J NWYRCYZN06 NY
— 347-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 347-721 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN06 NY
— 347-726 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN03 NY
— 347-727 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN13 NY
— 347-729 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN07 NY
— 347-731 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN06 NY
— 347-732 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN09 NY
— 347-735 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN03 NY
— 347-736 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 NWYRCYZN03 NY
— 347-742 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN06 NY
— 347-744 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN10 NY
— 347-745 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN14 NY
— 347-747 not yet reported which blocks → AMERICAN NETWORK, INC. 8667 NWYRCYZN07 NY
— 347-753 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
— 347-758 0–9 XXXall 10 · 4 holders which blocks → CSC VOICE, LLC 612K NWYRCYZN03 NY
— 347-759 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN03 NY
— 347-763 0–9 XXXall 10 · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN06 NY
— 347-767 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN03 NY
— 347-769 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC- NY 384C NWYRCYZN03 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.