NANPA's records list Onvoy Spectrum, LLC apart from Spectrum, the cable company's phone service.
Onvoy Spectrum, LLC carries the Onvoy name, and NANPA lists it as a holder separate from Onvoy, LLC. Like Onvoy, it is a wholesale holder of numbers rather than a phone plan sold to the public, so its numbers are used through other companies' calling apps and phone services. NANPA, which runs the North American numbering plan, lists Onvoy Spectrum as the holder of 1,770 prefixes in 51 states and territories, less than 1% of the 198,436 prefixes it has assigned.
- Name in NANPA's file
- ONVOY SPECTRUM, LLC
- What it is
- Supplies numbers to VoIP and app-based phone services
- Prefixes held
- 1,770 of 198,436 (less than 1%)
- States and territories
- 51 of 56, most in New York, Florida and California
- Area codes
- 324
- 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.
You can check which carrier a number is on today, for free.
Enter the full number to see its carrier now, which may not be Onvoy Spectrum 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.
Pick the country, then enter the number without the country code.
Free & rate-limited. No signup required to try.
A lookup shows Onvoy Spectrum when the number comes from a service that gets its numbers there.
Onvoy Spectrum 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 Onvoy Spectrum, 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 Onvoy Spectrum prefix can show another company if it was ported.
Onvoy Spectrum holds the most prefixes in New York: 166 of its 1,770.
- New York166
- Florida163
- California158
- Texas126
- Pennsylvania99
- Ohio68
- Illinois65
- Georgia62
Plus 863 prefixes in 43 more states and territories.
Onvoy Spectrum holds prefixes in 324 area codes, and these are its largest.
Of the prefixes NANPA dates, Onvoy Spectrum received the most in 2021: 580.
NANPA's file gives an assignment date for 1,659 of Onvoy Spectrum's 1,770 prefixes, all from 2001 on. The rest have no date in the file.
A call from an Onvoy Spectrum number is not spam just because of the carrier.
Numbers from wholesale carriers like Onvoy Spectrum 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.
- HD Carrier, LLCNumber holder with no public description, 329 prefixes
- NUSO, LLCCloud phone and wholesale number carrier, 739 prefixes
- Onvoy, LLCSupplies numbers to VoIP and app-based phone services, 13,033 prefixes
- Bandwidth.com CLEC, LLCSupplies numbers to VoIP and app-based phone services, 4,804 prefixes
- Peerless NetworkWholesale phone carrier, 1,265 prefixes
These are the questions people ask about Onvoy Spectrum.
What is Onvoy Spectrum, LLC?
Onvoy Spectrum, LLC carries the Onvoy name, and NANPA lists it as a holder separate from Onvoy, LLC. Like Onvoy, it is a wholesale holder of numbers rather than a phone plan sold to the public, so its numbers are used through other companies' calling apps and phone services.
Why does a phone lookup say Onvoy Spectrum?
A lookup shows Onvoy Spectrum when the number comes from a service that gets its numbers there. Onvoy Spectrum 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 Onvoy Spectrum, 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 Onvoy Spectrum prefix can show another company if it was ported.
Is a call from an Onvoy Spectrum number spam?
Numbers from wholesale carriers like Onvoy Spectrum 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 Onvoy Spectrum hold?
NANPA lists Onvoy Spectrum as the holder of 1,770 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 Onvoy Spectrum prefixes?
New York (166), Florida (163) and California (158) have the most, out of 51 states and territories.
Can I find out who owns an Onvoy Spectrum number?
Onvoy Spectrum 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.
Is Onvoy Spectrum the same company as Spectrum, the cable provider?
No. The names look alike, but NANPA lists the cable company's own phone numbers under Charter's company names, such as Charter IP Enabled Services and TWC IP Enabled Services, and lists Onvoy Spectrum, LLC as a separate holder.
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.