Nassau County, New York Area Codes & Phone Number Distribution

Estimated Number of Assigned Phone Numbers in Nassau County, New York

6,665,000

In Nassau County, New York, wireless numbers account for 38.5% of assigned numbers, above the statewide average of 37.0%. Nassau County's wireline and VoIP share is 2.0 percentage points lower than the statewide average. Nassau County is served by 4 area codes, more than the typical New York locality, because it sits in an overlay area where multiple area codes share the same geographic region.

Area Codes Used by Nassau County, New York

363 516 631 934

Estimated Service-Type Mix of Assigned Phone Numbers in Nassau County, New York

Total assigned 6,665,000

Wireline and VoIP

3,411,000 assigned numbers

51.18%

Wireless

2,566,000 assigned numbers

38.50%

Other / Unclassified

688,000 assigned numbers

10.32%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Nassau County, New York

Estimated assigned wireless phone numbers: 2,566,000

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

T-Mobile 1,045,000 (40.72%)

Verizon Wireless 846,000 (32.97%)

AT&T Wireless 651,000 (25.37%)

Optimum Mobile 24,000 (0.94%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Nassau County, New York

Estimated assigned wireline and VoIP phone numbers: 3,411,000

VERIZON NEW YORK, INC. 1,312,000 (38.46%)

Onvoy 670,000 (19.64%)

Bandwidth 380,000 (11.14%)

CABLEVISION LIGHTPATH, INC. - NY 283,000 (8.30%)

Lumen 168,000 (4.93%)

PAETEC ITEL, LLC 160,000 (4.69%)

Peerless Network 116,000 (3.40%)

Spectrum 115,000 (3.37%)

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 81,000 (2.37%)

YMAX COMMUNICATIONS CORP. - NY 35,000 (1.03%)

Commio 22,000 (0.65%)

Telnyx 20,000 (0.59%)

Other / Unclassified Assigned Numbering in Nassau County, New York

Estimated assigned other or unclassified phone numbers: 688,000

SPOK, INC. 230,000 (33.43%)

CSC VOICE, LLC 177,000 (25.73%)

HD CARRIER LLC 48,000 (6.98%)

IP HORIZON LLC 40,000 (5.81%)

ZCALL.COM, INC. 40,000 (5.81%)

AMERICAN NETWORK, INC. 20,000 (2.91%)

YORKSTREAM COMMUNICATIONS LLC 18,000 (2.62%)

CORETEL NEW YORK, INC. - NY 13,000 (1.89%)

AMERICAN MESSAGING SERVICES, LLC 10,000 (1.45%)

AQUIS COMMUNICATIONS, INC. 10,000 (1.45%)

EXIANT COMMUNICATIONS LLC 10,000 (1.45%)

SCARSDALE SECURITY SYSTEMS, INC. 10,000 (1.45%)

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 Nassau County, New York, not live customer counts.

Some providers may have assigned phone numbers tied to this locality 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.