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 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

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
—	917-856	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN01	NY
—	917-857	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-858	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN01	NY
—	917-859	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN01	NY
—	917-860	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN01	NY
—	917-861	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN01	NY
—	917-862	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN10	NY
—	917-863	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN10	NY
—	917-864	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN10	NY
—	917-865	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN06	NY
—	917-866	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN06	NY
—	917-867	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN06	NY
—	917-868	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN10	NY
—	917-869	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN06	NY
—	917-871	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-872	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN06	NY
—	917-873	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN06	NY
—	917-874	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-875	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-876	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-879	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN06	NY
—	917-880	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN01	NY
—	917-881	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN01	NY
—	917-882	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN01	NY
—	917-883	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-884	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-885	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN01	NY
—	917-886	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN01	NY
—	917-887	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN01	NY
—	917-888	not yet reported which blocks →	ZCALL.COM, INC.	0059	NWYRCYZN11	NY
—	917-889	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	NWYRCYZN03	NY
—	917-894	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN06	NY
—	917-895	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN11	NY
—	917-896	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN11	NY
—	917-897	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-898	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-899	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-901	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-902	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN01	NY
—	917-903	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN01	NY
—	917-904	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-906	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-909	0–9 XXXall 10 · 5 holders which blocks →	CABLEVISION LIGHTPATH, INC. - NY	7126	NWYRCYZN06	NY
—	917-910	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	XXXXXXXXXX	NY
—	917-911	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	NY
—	917-912	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN01	NY
—	917-913	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NWYRCYZN01	NY
—	917-915	not yet reported which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN01	NY
—	917-918	not yet reported which blocks →	SPOK, INC.	6630	NWYRCYZN01	NY
—	917-919	not yet reported which blocks →	SPOK, INC.	6630	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.