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 914
VERIZON NEW YORK, INC. 191
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 82
OMNIPOINT COMMUNICATIONS, INC. - NY 71
NEW CINGULAR WIRELESS PCS, LLC - DC 60
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 55
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
— 914-542 none assigned yet which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NEWBURGH NY
— 914-544 not yet reported which blocks → SPOK, INC. 6630 WSCHSTZN08 NY
— 914-545 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 WSCHSTZN08 NY
— 914-548 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN08 NY
— 914-551 not yet reported which blocks → SPOK, INC. 6630 WSCHSTZN08 NY
— 914-552 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WSCHSTZN06 NY
— 914-553 not yet reported which blocks → SPOK, INC. 6630 WSCHSTZN08 NY
— 914-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST NY
— 914-558 not yet reported which blocks → AQUIS COMMUNICATIONS, INC. 6919 WSCHSTZN08 NY
— 914-559 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN08 NY
— 914-560 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WSCHSTZN03 NY
— 914-570 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → AT&T - LOCAL 7421 WSCHSTZN07 NY
— 914-572 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN08 NY
— 914-576 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN03 NY
— 914-580 0XXX1XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WSCHSTZN07 NY
— 914-582 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WSCHSTZN08 NY
— 914-584 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WSCHSTZN08 NY
— 914-585 not yet reported which blocks → SPOK, INC. 6630 MT VERNON NY
— 914-588 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WSCHSTZN08 NY
— 914-589 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WSCHSTZN08 NY
— 914-591 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN04 NY
— 914-592 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN07 NY
— 914-593 3XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN07 NY
— 914-594 0XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN07 NY
— 914-595 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WSCHSTZN01 NY
— 914-596 not yet reported which blocks → ZCALL.COM, INC. 0059 WSCHSTZN08 NY
— 914-597 0XXX1XXX3XXX7XXX9XXX · 3 holders which blocks → TC SYSTEMS, INC. - NY 7140 WSCHSTZN08 NY
— 914-598 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WSCHSTZN07 NY
— 914-600 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BIRCHWOOD NY
— 914-602 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7650 MOUNTKISCO NY
— 914-603 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E LAKELAND NY
— 914-605 not yet reported which blocks → AMERICAN NETWORK, INC. 8667 WSCHSTZN08 NY
— 914-606 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 2 holders which blocks → TC SYSTEMS, INC. - NY 7140 WSCHSTZN07 NY
— 914-607 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 WSCHSTZN08 NY
— 914-609 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → TC SYSTEMS, INC. - NY 7140 WSCHSTZN08 NY
— 914-610 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WSCHSTZN07 NY
— 914-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 914-612 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7650 WSCHSTZN09 NY
— 914-613 3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 WSCHSTZN01 NY
— 914-614 3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WSCHSTZN08 NY
— 914-617 1XXX2XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → TC SYSTEMS, INC. - NY 7140 CROTON FLS NY
— 914-618 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WSCHSTZN08 NY
— 914-619 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 WSCHSTZN01 NY
— 914-621 1XXX2XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 MAHOPAC NY
— 914-625 0XXX2XXX which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 WSCHSTZN08 NY
— 914-628 0XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 MAHOPAC NY
— 914-629 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WSCHSTZN06 NY
— 914-630 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → AT&T - LOCAL 7421 WSCHSTZN06 NY
— 914-631 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN07 NY
— 914-632 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN03 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.