IP Horizon, LLC holds phone number prefixes across the US but publishes little about itself.
IP Horizon, LLC is not one of the mobile networks or the old local phone companies, and we found no public description of what it sells. A company that holds prefixes in many states this way most often supplies numbers to internet phone services, so that is the most likely reason a lookup shows it, though we have not confirmed it. NANPA, which runs the North American numbering plan, lists IP Horizon as the holder of 616 prefixes in 46 states and territories, less than 1% of the 198,436 prefixes it has assigned.
- Name in NANPA's file
- IP HORIZON LLC
- What it is
- Number holder with no public description
- Prefixes held
- 616 of 198,436 (less than 1%)
- States and territories
- 46 of 56, most in California, Texas and Florida
- Area codes
- 205
- Pooled prefixes
- 100%, 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 IP Horizon 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 IP Horizon when the number comes from a service that gets its numbers there.
IP Horizon rarely sells phone service to the person using the number. Internet calling apps, VoIP phone systems, call centers and business phone services get their numbers from carriers like IP Horizon, so a lookup shows the carrier behind the service, not the service itself.
Numbers can also move between carriers, so a lookup reads the number's carrier today, and a number with an IP Horizon prefix can show another company if it was ported.
IP Horizon holds the most prefixes in California: 145 of its 616.
- California145
- Texas81
- Florida67
- Virginia51
- Ohio25
- New York23
- Pennsylvania23
- Arkansas17
Plus 184 prefixes in 38 more states and territories.
IP Horizon holds prefixes in 205 area codes, and these are its largest.
Of the prefixes NANPA dates, IP Horizon received the most in 2024: 112.
NANPA's file gives an assignment date for 469 of IP Horizon's 616 prefixes, all from 2001 on. The rest have no date in the file.
A call from an IP Horizon number is not spam just because of the carrier.
Numbers from wholesale carriers like IP Horizon are used by ordinary people on calling apps and by real businesses. They are also cheap and quick to get, so some robocallers use them too.
The carrier name alone does not make a call safe or spam: judge it by what the caller asks for, and be careful with anyone who asks for money, codes or passwords.
Check the full number with our free spam phone checker before you call back.
You can read about 5 more carrier names here.
- Fractel, LLCSupplies numbers to VoIP and app-based phone services, 2,858 prefixes
- Bandwidth.com CLEC, LLCSupplies numbers to VoIP and app-based phone services, 4,804 prefixes
- Onvoy, LLCSupplies numbers to VoIP and app-based phone services, 13,033 prefixes
- Peerless NetworkWholesale phone carrier, 1,265 prefixes
- HD Carrier, LLCNumber holder with no public description, 329 prefixes
These are the questions people ask about IP Horizon.
What is IP Horizon, LLC?
IP Horizon, LLC is not one of the mobile networks or the old local phone companies, and we found no public description of what it sells. A company that holds prefixes in many states this way most often supplies numbers to internet phone services, so that is the most likely reason a lookup shows it, though we have not confirmed it.
Why does a phone lookup say IP Horizon?
A lookup shows IP Horizon when the number comes from a service that gets its numbers there. IP Horizon rarely sells phone service to the person using the number. Internet calling apps, VoIP phone systems, call centers and business phone services get their numbers from carriers like IP Horizon, so a lookup shows the carrier behind the service, not the service itself. Numbers can also move between carriers, so a lookup reads the number's carrier today, and a number with an IP Horizon prefix can show another company if it was ported.
Is a call from an IP Horizon number spam?
Numbers from wholesale carriers like IP Horizon are used by ordinary people on calling apps and by real businesses. They are also cheap and quick to get, so some robocallers use them too. The carrier name alone does not make a call safe or spam: judge it by what the caller asks for, and be careful with anyone who asks for money, codes or passwords. Check the full number with our free spam phone checker before you call back.
How many phone prefixes does IP Horizon hold?
NANPA lists IP Horizon as the holder of 616 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. 100% of these are pooled, so blocks of 1,000 numbers inside them can belong to other carriers.
Which states have the most IP Horizon prefixes?
California (145), Texas (81) and Florida (67) have the most, out of 46 states and territories.
Can I find out who owns an IP Horizon number?
IP Horizon 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.