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
— 646-297 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 646-298 1XXX3XXX which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-301 0–9 XXXwhole prefix which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-304 not yet reported which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
— 646-305 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-306 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
— 646-308 4XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NWYRCYZN01 NY
— 646-309 0–9 XXXwhole prefix which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 646-312 7XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
— 646-313 none assigned yet which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 646-314 0XXX1XXX2XXX3XXX6XXX7XXX · 2 holders which blocks → RCN TELECOM SERVICES, INC. - NY 7353 NWYRCYZN01 NY
— 646-317 0–9 XXXwhole prefix which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 646-318 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
— 646-319 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-321 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-322 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-323 0–9 XXXwhole prefix which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-324 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 646-325 0XXX1XXX2XXX which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-327 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-328 6XXX7XXX8XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NWYRCYZN01 NY
— 646-330 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
— 646-335 2XXX3XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 646-336 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 646-337 1XXX2XXX which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-340 0–9 XXXall 10 · 3 holders which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
— 646-342 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-343 0XXX1XXX2XXX3XXX4XXX5XXX7XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 646-344 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NWYRCYZN01 NY
— 646-345 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-346 0–9 XXXall 10 · 4 holders which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
— 646-348 0XXX4XXX7XXX9XXX · 3 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 646-349 not yet reported which blocks → ONVOY, LLC- NY 384C NWYRCYZN01 NY
— 646-351 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-352 1XXX2XXX3XXX5XXX7XXX8XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NWYRCYZN01 NY
— 646-354 0XXX1XXX3XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
— 646-355 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-356 not yet reported which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
— 646-357 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
— 646-358 0–9 XXXall 10 · 3 holders which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
— 646-359 0–9 XXXwhole prefix which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-361 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 646-362 not yet reported which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
— 646-363 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 NWYRCYZN01 NY
— 646-364 none assigned yet which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 646-365 not yet reported which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
— 646-366 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 646-367 7XXX which blocks → XO NEW YORK, INC. 8340 NWYRCYZN01 NY
— 646-368 0–9 XXXall 10 · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 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.