Lightpath is a business fiber and phone network in the New York area.
Lightpath sells fiber internet and phone service to businesses, mostly around New York City. It began as Cablevision Lightpath, part of the Cablevision cable company, which is why NANPA still lists its prefixes under that name. NANPA, which runs the North American numbering plan, lists Lightpath as the holder of 269 prefixes in 4 states and territories, less than 1% of the 198,436 prefixes it has assigned.
- Name in NANPA's file
- CABLEVISION LIGHTPATH, INC. - NY, and 3 other listings
- What it is
- Business fiber and phone network
- Prefixes held
- 269 of 198,436 (less than 1%)
- States and territories
- 4 of 56, most in New York, New Jersey and Connecticut
- Area codes
- 28
- Pooled prefixes
- 93%, shared in blocks of 1,000 numbers
From NANPA's central office code file of October 1, 2026. A prefix is the three digits after the area code.
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Enter the full number to see its carrier now, which may not be Lightpath if the number was ported. It is the same free check as our carrier lookup. To see whether it is a mobile, landline or VoIP line, use the line type lookup, and to see who it is listed to, the who called me lookup.
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A lookup shows Lightpath when the number is a business line on its network.
Lightpath sells phone lines to companies, so many of its numbers are office lines, call centers and other business phone systems.
Numbers can also move between carriers, so a lookup reads the number's carrier today, and a number with a Lightpath prefix can show another company if it was ported.
Lightpath holds the most prefixes in New York: 160 of its 269.
- New York160
- New Jersey67
- Connecticut35
- Florida7
Lightpath holds prefixes in 28 area codes, and these are its largest.
Of the prefixes NANPA dates, Lightpath received the most in 2023: 21.
NANPA's file gives an assignment date for 152 of Lightpath's 269 prefixes, all from 2001 on. The rest have no date in the file.
A call from a Lightpath number is not spam just because of the carrier.
Lightpath sells phone lines to businesses, so a call from one of its numbers often comes from a company's office or call center.
Whether that call is one you want is a separate question, and caller ID can be faked, so judge it by what the caller asks for.
Check the full number with our free spam phone checker before you call back.
You can read about 5 more carrier names here.
- PAETEC iTel, LLCWindstream's business phone network, 5,552 prefixes
- Level 3 Communications, LLCLumen's business and wholesale network, 10,346 prefixes
- Teleport Communications America, LLCAT&T's business phone network, 4,083 prefixes
- TPx CommunicationsBusiness phone and internet company, 807 prefixes
- AllstreamBusiness phone and internet company, 450 prefixes
These are the questions people ask about Lightpath.
What is Lightpath?
Lightpath sells fiber internet and phone service to businesses, mostly around New York City. It began as Cablevision Lightpath, part of the Cablevision cable company, which is why NANPA still lists its prefixes under that name.
Why does a phone lookup say Lightpath?
A lookup shows Lightpath when the number is a business line on its network. Lightpath sells phone lines to companies, so many of its numbers are office lines, call centers and other business phone systems. Numbers can also move between carriers, so a lookup reads the number's carrier today, and a number with a Lightpath prefix can show another company if it was ported.
Is a call from a Lightpath number spam?
Lightpath sells phone lines to businesses, so a call from one of its numbers often comes from a company's office or call center. Whether that call is one you want is a separate question, and caller ID can be faked, so judge it by what the caller asks for. Check the full number with our free spam phone checker before you call back.
How many phone prefixes does Lightpath hold?
NANPA lists Lightpath as the holder of 269 prefixes, less than 1% of all assigned US prefixes. A prefix is the three digits after the area code and covers up to 10,000 numbers. 93% of these are pooled, so blocks of 1,000 numbers inside them can belong to other carriers.
Which states have the most Lightpath prefixes?
New York (160), New Jersey (67) and Connecticut (35) have the most, out of 4 states and territories.
Can I find out who owns a Lightpath number?
Lightpath does not publish who uses its numbers. Our free who called me lookup shows who a US number is listed to and the city and state on the listing, when the number has a listing.
Source: NANPA, the North American Numbering Plan Administrator: its central office code assignments, as of October 1, 2026. Company histories are from public records and each company's own descriptions.