NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 917
OMNIPOINT COMMUNICATIONS, INC. - NY 142
NEW CINGULAR WIRELESS PCS, LLC - DC 136
SPOK, INC. 133
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 123
VERIZON NEW YORK, INC. 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
2001-05-04 917-498 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2001-01-26 917-756 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
— 917-202 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN06 NY
— 917-204 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 917-205 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-206 1XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-207 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
— 917-208 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
— 917-209 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
— 917-210 7XXX8XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
— 917-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 917-217 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 917-218 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-219 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN06 NY
— 917-220 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 917-221 not yet reported which blocks → ZCALL.COM, INC. 0059 NWYRCYZN11 NY
— 917-222 not yet reported which blocks → ZCALL.COM, INC. 0059 NWYRCYZN11 NY
— 917-223 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-224 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
— 917-225 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
— 917-226 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
— 917-228 4XXX which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-229 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-232 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN03 NY
— 917-233 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN06 NY
— 917-234 not yet reported which blocks → DIAL-A-BEEPER, INC. 6871 NWYRCYZN06 NY
— 917-235 not yet reported which blocks → DIAL-A-BEEPER, INC. 6871 NWYRCYZN06 NY
— 917-236 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN04 NY
— 917-237 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-238 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
— 917-239 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
— 917-240 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-241 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-247 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-248 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-249 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN06 NY
— 917-252 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-253 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-255 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN08 NY
— 917-256 1XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-258 not yet reported which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
— 917-259 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN03 NY
— 917-260 9XXX which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-261 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-262 0XXX7XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-263 0XXX1XXX which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-265 8XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-266 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-269 not yet reported which blocks → AQUIS COMMUNICATIONS, INC. 6919 NWYRCYZN06 NY
— 917-270 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.