Viber Blocks VoIP. Get a Real US Number That Works.
Viber's own support documentation says it plainly: enter a number you can receive calls on — not VoIP. Hushed, TextNow, and iPlum all fail this check. Get a dedicated US Real-SIM number that passes Viber's carrier-level verification on the first try.
- Real-SIM US number — not blocked like Hushed, TextNow, or iPlum
- Receive Viber's 6-digit verification code in your JoltSMS inbox
- Dedicated to you alone — not a recycled shared virtual number
- Keep the number for re-verification when you change devices
- Team access via Slack / Discord / Email / Webhook alerts
Why Viber blocks virtual numbers — and what Viber says about it
Viber's VoIP rejection is not a soft filter. It is carrier-level detection published in their own help documentation. Viber's activation support article states verbatim: "Make sure you entered a number to which you can receive phone calls (not VoIP)." After three failed attempts with a blocked number, Viber locks that number from further attempts for 24 hours.
- •Hushed — VoIP carrier classification, activation fails immediately
- •TextNow — VoIP classification, verification code never arrives
- •iPlum — VoIP classification, "Invalid phone number" or "Activation failed" error
- •Google Voice — VoIP carrier range, rejected at registration
- •Shared virtual number pools (GrizzlySMS, SMSPool) — recycled numbers with prior Viber history trigger "already in use" or instant rejection
- •Free online SMS inboxes — public numbers anyone can read, and often flagged as VoIP ranges
Viber's documentation is unusually direct: real cellular numbers are required. The platform is telling users exactly what to get. A dedicated JoltSMS number from a US carrier is the solution Viber is pointing toward.
How JoltSMS solves Viber verification
JoltSMS provides real carrier SIM numbers from US mobile networks — not VoIP, not virtual, not shared pools. Real-SIM numbers are classified as mobile by carrier lookup databases, the same classification as a normal cell phone. Viber's detection treats them accordingly.
- Real-SIM classification: mobile, not VoIP — passes carrier-level VoIP detection
- Dedicated to you alone during your rental period — not recycled like shared virtual numbers
- Keep the same number for future device changes and Viber re-verification
- Your personal phone number never appears on Viber
- Shared inbox for teams running Viber Business customer service accounts
Who uses JoltSMS for Viber?
Eastern European and Filipino expats
Ukraine has 97.7% Viber market share. Filipino and Eastern European communities living in the US need a real US number to register or re-verify Viber to stay connected with family and communities back home — without linking their account to a personal US SIM.
Privacy-conscious users
Viber requests access to your contact list during onboarding. Registering on a dedicated JoltSMS number keeps your personal carrier identity off the platform entirely — Viber cannot surface your personal contacts or be tied to your real identity.
Viber Business customer service teams
Viber is the dominant B2C messaging channel in Eastern Europe and the Philippines. Each Viber Business account is tied to one phone number. A dedicated JoltSMS number gives customer service teams a stable shared inbox that stays with the company — not one employee's personal SIM.
How to verify Viber with a JoltSMS number
Get your JoltSMS number
Sign up and get a dedicated US Real-SIM number at $50/month
Open Viber on your device
Start a fresh registration or go to Settings to change your number
Enter your JoltSMS number
Input the US number when Viber asks for phone verification. Select SMS, not a voice call.
Receive the code in your inbox
Viber sends a 6-digit verification code. It arrives in your JoltSMS dashboard instantly.
Enter the code in Viber
Type the code to complete registration. Your Viber account is now active.
Keep the number active
Renew monthly — Viber re-verifies via the same number when you change devices or reinstall
Running a Viber Business account for customer service?
In Eastern Europe and the Philippines, Viber is a primary B2C customer service channel — not a niche platform. Teams running customer support on Viber need a phone number that belongs to the business, not one employee's personal SIM. When that employee leaves, the Viber Business account should not leave with them.
- Shared inbox: any authorized team member can see incoming Viber verification codes
- Slack or Discord notifications so the right person gets the code immediately
- Email forwarding for async teams across time zones
- Webhook delivery for CRM or helpdesk integrations
- Role-based access: grant inbox visibility without sharing personal phone numbers
What to know before you start
Not affiliated with Viber or Rakuten. JoltSMS provides real-SIM US numbers for legitimate account registration. Use in accordance with Viber's Terms of Service.
Best practices:
- Keep your JoltSMS number active month-to-month — Viber re-verifies the number when you change devices or reinstall the app
- JoltSMS numbers are inbound-only: if Viber offers a voice call instead of SMS for verification, select SMS
- Viber enforces one account per phone number — if you need a separate personal and business Viber account, you need two separate JoltSMS numbers
- Enable Viber's two-step PIN immediately after registration for added account security
- If you see an "activation failed" error on your first attempt, wait a few minutes before trying again — repeated rapid attempts may trigger a 24-hour lockout
- Also works for WhatsApp verification, Telegram verification, and Signal verification — one JoltSMS number can receive codes from multiple messaging platforms
Viber verification FAQ
JoltSMS provides real-SIM, non-VoIP numbers from US carriers — the type of number Viber says is required for registration. We can't guarantee acceptance on any specific platform, but real-SIM numbers directly address the VoIP restriction that Viber documents explicitly in their own support articles.
Verify Viber without using a VoIP number
Stop getting blocked by Viber's VoIP detection. Get a dedicated Real-SIM US number that Viber actually accepts. Private. Permanent. $50/month.