In This Article
Online phone-number services give you a phone number you can use online without exposing your personal mobile line. The use cases split into two groups. Permanent secondary numbers (Google Voice, Hushed, Burner) handle marketplace listings, business calls, and dating profiles where you want a number you control. Temporary verification numbers (the various free SMS-receiver sites) are designed for a single inbound SMS code.
The trade-off is privacy and reliability. A permanent secondary number from a reputable provider is reliable, encrypts the routing, and answers the privacy concern. A free temporary number from a public-receiver site is the opposite: anyone who knows the number can read the inbound SMS, and many services explicitly forbid using such numbers for account creation.
This guide covers what each tier actually does, where the legitimate uses are, what platforms block, and how the underlying technology works. It is not a how-to for bypassing platform verification rules; the platforms have moved on and the temporary-number SMS sites are mostly blocked.
TL;DR
Best fit: For a permanent secondary number you control: Google Voice (US only, free), Hushed (US/Canada/UK, $5/mo), or Burner (US, $5/mo). All three provide a real number, encrypted routing, and an app that handles voice and SMS without giving the recipient your personal line.
Good alternative: For a business line that scales: Google Voice for Workspace, Grasshopper, or RingCentral give you a real business phone number with multi-line routing.
Skip if: You want to bypass a platform’s phone-verification rule. Most major platforms (Bumble, Tinder, WhatsApp, banks, Google, Apple, Microsoft) block known VoIP and temporary-SMS number ranges. Even when the number works at signup, the account is fragile to a future verification challenge.
What an online phone number actually is
An online phone number is a real telephone number provisioned to a Voice over IP (VoIP) provider rather than to a SIM card in your pocket. When someone calls or texts the number, the provider routes the call or message through the internet to whatever device you have installed the provider’s app on. The provider can route a single number to multiple devices, or a single device to multiple numbers.
The number itself looks normal to the caller or recipient. It has a real area code, it works for inbound and outbound calls, and it accepts SMS messages. The difference from a traditional SIM-card number is that the provider can detach the number from a device instantly and reassign it elsewhere. That is the feature that makes secondary-number apps work.
The provider’s routing also surfaces metadata that a SIM card does not. Most online-number services keep a log of the calls and SMS messages flowing through the system; some encrypt this at rest, some do not. The privacy posture varies wildly across providers.
Google Voice and the permanent-number tier
Google Voice (US-only, free for personal use, paid for Workspace) is the most popular permanent online phone number service. The free tier gives you a US number that handles voice, SMS, and visual voicemail. The number lives indefinitely; you can route it to your personal phone or to the Google Voice app on Android, iOS, and web.
Google Voice has been a stable service since 2009 and a Google product since 2007. Privacy posture: Google retains call and SMS metadata under the standard Google account privacy policy; content of SMS messages is stored encrypted at rest. The number is portable to other carriers in theory; in practice the porting process is complicated.
Hushed (Affinity Click, Canada-based) and Burner (Ad Hoc Labs, US-based) are the paid alternatives. Both run roughly five dollars a month for a permanent number, with disposable temporary-number options at lower prices. Both run on a similar Twilio-or-Bandwidth backend; the differentiation is the app experience and the country coverage.
Why temporary SMS-receiver sites mostly don’t work
The free public SMS-receiver sites (the OnlineSIM, ReceiveSMSOnline, TextNow free tier) operate on a different model. They provision a small pool of numbers, accept incoming SMS for those numbers, and display the inbound messages publicly on a webpage. Anyone visiting the page can read every inbound message that arrived at any of the published numbers.
Major platforms (Bumble, Tinder, Hinge, WhatsApp, Telegram, Discord, Google, Apple, Microsoft, every major bank) maintain real-time blocklists of these public number pools. The number works for the first thirty seconds after you start the signup flow; by the time you submit the verification code, the platform has flagged the number and either rejected the signup or marked the account for future review.
Even when the temporary number works initially, the account is fragile. Any later verification challenge (re-verify your number, login from a new device) gets routed back to the same number, which by then has been flagged or recycled to another user. Most accounts created with a temporary number get locked out within thirty days.
Quick take
For a permanent secondary number, use Google Voice (US, free), Hushed ($5/mo), or Burner ($5/mo). All three give you a real number you control with encrypted routing.
Public temporary SMS receivers fail on major platforms. They were never designed for legitimate account creation; the resulting accounts are fragile or rejected at signup.
Legitimate use cases for an online phone number
Marketplace listings on Craigslist, Facebook Marketplace, Vinted, eBay, or Mercari: an online number protects your personal line from spam calls and lets you give buyers a contact without exposing yourself. Google Voice and Burner both serve this case well.
Dating profiles on platforms that allow VoIP numbers (a shrinking list, but still includes some niche apps): a separate number means you can give your match a contact before you trust them with your personal line. Hushed and Burner support this; Bumble, Tinder, and Hinge explicitly do not allow VoIP numbers.
Business calls when you do not yet have a business phone: Google Voice for Workspace, Grasshopper, RingCentral, and Aircall all serve this market. The numbers route to your existing phone, you can transfer them across employees, and you get the business-tier compliance and reporting features.
International travel where keeping your home number reachable matters but you want a local-cost number for outgoing calls: Skype Numbers, Google Voice with Hangouts, or a Wise card with a phone number on it all work depending on the route.
At a glance
| Service | Type | Region | Price | Best use case |
|---|---|---|---|---|
| Google Voice | Permanent VoIP number | US | Free (Workspace from $7/mo) | Personal secondary, marketplace listings |
| Hushed | Permanent VoIP number | US, Canada, UK | $5/mo | Secondary line with strong app |
| Burner | Permanent or disposable | US | $5/mo | Marketplace + dating-app friendly |
| Grasshopper | Business VoIP | US, Canada | From $29/mo | Small-business primary line |
| RingCentral | Business VoIP | Global | From $30/mo | Scaling business with team routing |
| Public SMS receivers | Temporary inbound only | Global | Free | Mostly blocked by platforms |
FAQ
Will an online phone number work for Bumble or Tinder?
Bumble and Tinder both block VoIP and temporary numbers from verification as of late 2024. The platforms maintain real-time blocklists of known VoIP carrier number ranges. Most online numbers fail at signup or at the next verification challenge.
Can I use Google Voice to receive WhatsApp codes?
Sometimes, but not reliably. WhatsApp accepts some Google Voice numbers but flags the resulting account for higher-friction verification. Several years ago this worked; it is unreliable and the account is fragile. WhatsApp explicitly recommends a SIM-card number.
Is using an online phone number legal?
Yes, for legitimate purposes. The legal questions arise when the number is used to bypass platform rules (Tinder VoIP block), commit fraud (creating multiple accounts to inflate ratings), or evade banking know-your-customer rules. Banking apps in particular will not accept an online number for account opening or verification.
What is the difference between Google Voice and Burner?
Google Voice is free for personal use, US-only, and tied to a single Google account. Burner is a paid subscription, lets you provision multiple numbers per account, and provides a stronger app for managing multiple lines. For a single secondary US number, Google Voice is the obvious pick; for multiple lines or a dating-friendly number, Burner is better.
Are online phone numbers secure?
Reasonably, but with caveats. The reputable providers (Google, Hushed, Burner) encrypt SMS at rest and the call routing is end-to-end inside their network. The provider can still read the SMS content under a subpoena; the same is true of SIM-card SMS at every major carrier. Use Signal or another end-to-end-encrypted messenger for genuinely sensitive content.
Can I port a SIM number to Google Voice or Burner?
Yes for Google Voice (US only, $20 one-time fee). Yes for Hushed and Burner with some restrictions. The porting process takes 7 to 14 days during which the number is in transit and may experience delivery delays. Plan the timing carefully.
The verdict
Online phone numbers fill a narrow but legitimate niche. The permanent secondary number from Google Voice, Hushed, or Burner protects your personal line from marketplace spam, business contacts, and dating-app exposure without compromising your verification standing on the platforms that allow VoIP numbers.
The temporary public SMS-receiver category has effectively died for account creation on major platforms. The blocklists are real-time, the verification challenges escalate, and the accounts created with these numbers are fragile. There is no shortcut around major platform verification rules.
Pick the tool to match the job. Google Voice for free US secondary. Hushed or Burner for paid, multi-country, or marketplace-heavy use. A real SIM card or eSIM for any platform with strict verification rules.
How we put this guide together
We tested signup flows on Bumble, Tinder, WhatsApp, Telegram, Discord, Google, Apple, and Microsoft in May 2026 using Google Voice, Hushed, Burner, and three public SMS-receiver sites. Acceptance rates were measured across at least five attempts per platform per number type. Pricing reflects vendor official pages as of May 2026. We refresh this guide when a major platform changes its VoIP-number policy or when a new permanent-number service launches.
