Area Code Overview

Area code 646 is a geographic telephone area code in New York that went into service on July 1, 1999. The geographic regions covered by this area code overlay has a population of approximately 8,804,190.

Overlay and Dialing Rules

Area Code: 646
State: New York
Type: General Purpose Code
In Service Date: July 1, 1999
Overlay Complex: 212/332/347/465/646/718/917/929
Local Dialing Plan: This area requires you to dial 1 and the area code when calling locally.

Estimated Number of Assigned Phone Numbers in Area Code 646

This area code is ranked 12th out of 363 nationwide in estimated assigned phone numbers. Within the state territory it serves, it is ranked 3rd out of 21.

7,073,000

Estimated Service-Type Mix of Assigned Phone Numbers in Area Code 646

Total assigned 7,073,000

Wireless

3,391,000 assigned

47.94%

Wireline and VoIP

3,529,000 assigned

49.89%

Other / Unclassified

153,000 assigned

2.16%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Area Code 646

Estimated assigned wireless phone numbers: 3,391,000

Numbers may later be ported to another carrier, but this chart reflects original number assignment, not current subscriber share.

T-Mobile 2,183,000 (64.38%)

Verizon Wireless 645,000 (19.02%)

AT&T Wireless 548,000 (16.16%)

LTE WIRELESS INC D/B/A LTE WIRELESS - NY 10,000 (0.29%)

Optimum Mobile 5,000 (0.15%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Area Code 646

Estimated assigned wireline and VoIP phone numbers: 3,529,000

PAETEC ITEL, LLC 789,000 (22.36%)

Lumen 529,000 (14.99%)

Bandwidth 497,000 (14.08%)

VERIZON NEW YORK, INC. 431,000 (12.21%)

Onvoy 333,000 (9.44%)

Spectrum 291,000 (8.25%)

MCIMETRO ACCESS TRANSMISSION SERVICES LLC 284,000 (8.05%)

CABLEVISION LIGHTPATH, INC. - NY 124,000 (3.51%)

Peerless Network 83,000 (2.35%)

YMAX COMMUNICATIONS CORP. - NY 53,000 (1.50%)

XCHANGE TELECOM CORP. - NY 36,000 (1.02%)

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 33,000 (0.94%)

Other / Unclassified Assigned Numbering in Area Code 646

Estimated assigned other or unclassified phone numbers: 153,000

TC SYSTEMS, INC. - NY 94,000 (61.44%)

CSC VOICE, LLC 24,000 (15.69%)

AMERICAN NETWORK, INC. 10,000 (6.54%)

IP HORIZON LLC 10,000 (6.54%)

TELENGY L.L.C. - NY 4,000 (2.61%)

HD CARRIER LLC 3,000 (1.96%)

INTRADO COMMUNICATIONS, LLC 2,000 (1.31%)

TELXMEDIA, INC. - NY 2,000 (1.31%)

AIRESPRING, INC. - CA 1,000 (0.65%)

BARR TELL USA, INC. - NY 1,000 (0.65%)

BUSINESS AUTOMATION TECHNOLOGIES, INC. - NY 1,000 (0.65%)

EXIANT COMMUNICATIONS LLC 1,000 (0.65%)

Cities and Towns in Area Code 646

New York, New York

These geographic regions are also served by area codes 212, 332, 347, 465, 718, 917, and 929.

How These Figures Were Built

These figures are estimates based on public phone-number assignment records. They are meant to show the likely mix of assigned phone numbers associated with area code 646, not live customer counts.

Some providers may have assigned phone numbers tied to this area code even if they do not actively market or sell service locally. These figures reflect public number-assignment records, not confirmed local service availability.

They also do not reflect number portability at the individual phone-number level, so some numbers may now be used on a different network or by a different provider than the original assignment records suggest.

Population data and locality matching provided by GeoNames.

Last refreshed: April 15, 2026 6:22 pm