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 212

VERIZON NEW YORK, INC. 632

TC SYSTEMS, INC. - NY 50

MCIMETRO ACCESS TRANSMISSION SERVICES LLC 30

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 20

PAETEC ITEL, LLC 11

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
—	212-286	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-287	not yet reported which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	NWYRCYZN01	NY
—	212-288	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-289	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-290	9XXX which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-291	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-292	not yet reported which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY	7133	NWYRCYZN01	NY
—	212-293	not yet reported which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY	7133	NWYRCYZN01	NY
—	212-294	not yet reported which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY	7133	NWYRCYZN01	NY
—	212-295	not yet reported which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY	7133	NWYRCYZN01	NY
—	212-296	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-297	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-298	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-299	not yet reported which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	NWYRCYZN01	NY
—	212-300	0–9 XXXall 10 · 3 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	NWYRCYZN01	NY
—	212-301	not yet reported which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	NWYRCYZN01	NY
—	212-302	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-303	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-304	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-305	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-306	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-307	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-308	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-309	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-310	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-311	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	NY
—	212-312	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-313	7XXX8XXX9XXX · 2 holders which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-314	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-315	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-316	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-317	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-318	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-319	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-320	not yet reported which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	NWYRCYZN01	NY
—	212-321	0XXX5XXX7XXX · 3 holders which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-322	not yet reported which blocks →	TC SYSTEMS, INC. - NY	7140	NWYRCYZN01	NY
—	212-323	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-324	not yet reported which blocks →	CABLEVISION LIGHTPATH, INC. - NY	7126	NWYRCYZN01	NY
—	212-325	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-326	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-327	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-328	not yet reported which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY	7133	NWYRCYZN01	NY
—	212-329	5XXX which blocks →	TC SYSTEMS, INC. - NY	7140	NWYRCYZN01	NY
—	212-330	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-331	not yet reported which blocks →	TC SYSTEMS, INC. - NY	7140	NWYRCYZN01	NY
—	212-332	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-333	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-334	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	NWYRCYZN01	NY
—	212-335	0XXX1XXX2XXX · 3 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.