Phone carriers · Onvoy
Carrier guide
What Is Onvoy LLC?
Onvoy at a glance
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Onvoy is a block holder, listed in NANPA data as "ONVOY, LLC - XX" for each state and as "ONVOY SPECTRUM, LLC". The app or business you deal with gets the number from Onvoy or from a provider in between. Trueguard returns these numbers as line.type voip, line.voipType nonFixed and line.carrierType cpaasVirtual.
Published by Trueguard. Facts about Onvoy read 14 November 2026.
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What Trueguard returns for a number in an Onvoy block
| Field | Value | Why |
|---|---|---|
line.type | voip (VoIP) | A number served over the internet. |
line.voipType | nonFixed (Non-fixed VoIP) | A number obtained online without a physical line. |
line.carrierType | cpaasVirtual (Virtual number provider (CPaaS)) | Served from a communications platform. |
line.smsCapable | true | Trueguard marks non-fixed VoIP numbers SMS capable. |
line.originalCarrier | Onvoy | The holder of the number block. A number in an Onvoy block reads Onvoy. |
line.currentCarrier | Onvoy | Onvoy when the number is not ported. For a US number that was ported, the carrier it moved to. |
risk.status | safe | Safe unless the number is disposable or premium rate. |
Onvoy in Trueguard's data
Onvoy blocks hold 11.7% of US numbers and 36.4% of the disposable numbers Trueguard saw in US blocks, 3.1 times its share.
| Carrier | Numbers in blocks held | Share of US numbers | Area codes | Trueguard line type | Share of disposable numbers |
|---|---|---|---|---|---|
| Onvoy | 219,574,000 | 11.7% | 364 | Non-fixed VoIP | 36.4% |
| Bandwidth | 79,220,000 | 4.2% | 358 | Non-fixed VoIP | 26.5% |
| Telnyx | 13,067,000 | 0.70% | 338 | Non-fixed VoIP | 18.2% |
| Twilio | 342,000 | 0.018% | 188 | Non-fixed VoIP | 3 seen, too few to share |
Trueguard data, 14 November 2026: disposable numbers in US blocks, grouped by the carrier that holds the number block. Disposable here means a number listed on a public receive-SMS site that Trueguard monitors, in the last 180 days. Base: 11,314 disposable numbers in US blocks. Block sizes from NANPA data.
Get your free API keyAbout Onvoy
Who Onvoy is
NANPA data lists the holder as "ONVOY, LLC - XX" for each state, plus "ONVOY SPECTRUM, LLC". Trueguard maps all of them to the brand Onvoy.
Source: NANPA number block data, as loaded by Trueguard, read 14 November 2026.
Onvoy holds blocks under 51 OCNs in 364 area codes and 51 regions (states, DC and territories).
Source: NANPA number block data, as loaded by Trueguard, read 14 November 2026.
Those blocks hold 219,574,000 numbers, 11.7% of the 1,871,503,000 US numbers assigned.
Source: NANPA number block data, as loaded by Trueguard, read 14 November 2026.
Why an Onvoy number calls or texts you
A call or text from an Onvoy number comes from someone who got the number from Onvoy or from a provider that buys from it. The lookup shows the block holder. The app, business or person using the number sits behind one or more providers.
Onvoy blocks also hold many disposable numbers: 36.4% of the disposable numbers Trueguard saw in US blocks, against 11.7% of US numbers held. That does not mark any one number as bad, so judge the message or the signup itself.
Can you find out who owns it?
Trueguard shows the carrier and line type, not the owner. The platform that holds the number keeps the account details, and Trueguard does not do reverse phone lookup or caller names.
If a call or text bothers you, block the number on your phone, report the message to your own mobile carrier, and report abuse to the platform that holds the number.
Detect Onvoy numbers at signup
Trueguard returns a number in an Onvoy block as non-fixed VoIP, so the rule is to step up. A non-fixed number with receive-SMS history is blocked.
| The rule for numbers on Onvoy | Action |
|---|---|
line.type mobile, risk.status safe | Allow |
line.voipType fixed | Allow. line.smsCapable is false, so verify by another channel such as email. |
line.voipType nonFixed, no disposable history | Step up |
line.voipType unknown | Step up |
Any line with risk.previouslyDisposable true | Step up |
line.voipType nonFixed and risk.isDisposable true | Block |
line.voipType nonFixed and risk.previouslyDisposable true | Block |
Any line with risk.status risky (disposable or premium rate) | Block |
risk.status invalid | Reject and ask the user to re-enter |
Check for Onvoy numbers from your code
The same data comes from POST /v2/phone/validation, one number per request. 100 checks a month are free with no card. The Standard plan is $49.99 a month for 20,000 checks, then $0.0025 a check. Median response is under 500 ms.
curl -X POST https://api.trueguard.io/v2/phone/validation \
-H "X-API-KEY: $YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"phone":"+14159929960"}'Questions about Onvoy numbers.
Anything missing? Contact support or read the documentation.
Is Onvoy a real phone company?
Yes. It holds US number blocks under 51 OCNs in NANPA data. Check a number with Trueguard: line.originalCarrier reads Onvoy when Onvoy holds the number block. 5 checks a day are free here, and 100 a month with a free API key.
Why does my number lookup say Onvoy?
The number sits in a block that Onvoy holds, or it was ported to Onvoy. The app or business using the number gets it from Onvoy or from a provider in between, so the lookup names the carrier and not the sender.
Is Onvoy spam?
A carrier is not spam. Numbers in Onvoy blocks make up 36.4% of the disposable numbers Trueguard saw in US blocks, 3.1 times Onvoy's share of US numbers, so step up a signup from one.
Is Onvoy a cell phone or landline?
Trueguard returns numbers in Onvoy blocks as VoIP, non-fixed, and marks them SMS capable.
Can I find out who owns an Onvoy number?
Not with a carrier lookup. Trueguard returns carrier and line type, not the owner. The account details sit with the platform that holds the number, so report abuse to Onvoy or the app that sent the message.
How do I stop calls from Onvoy numbers?
Block the number on your phone, report the message to your own mobile carrier, and report abuse to the platform that holds the number. Blocking one number does not stop a sender who gets another.
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