Are these real SIM cards or VoIP numbers?

Real physical SIM cards from licensed mobile operators in EU, US, UK, Asian and LatAm countries. VoIP numbers from providers like Twilio and Google Voice are routinely blocked by WhatsApp, Telegram, Tinder, and most major services — VirtualSMS numbers pass those checks because they originate on real cellular networks.

How fast is delivery?

Most SMS arrive within 30-60 seconds of the service sending the verification code. If the SMS does not arrive within 20 minutes the activation is auto-refunded to your VirtualSMS balance — no dispute, no support ticket.

How many countries and services are supported?

145+ countries with live SIM inventory and 2500+ services with per-country pricing. The supported list is published on the services page and country index, both kept in sync with live inventory.

Do I need an account?

No account is needed to view free shared numbers at /free-numbers. For dedicated private numbers — required for WhatsApp, Telegram, and any service that flags shared numbers — create a free account, top up with crypto, and start renting.

Is there an API for developers and AI agents?

Yes. Full REST API at /docs covering rent, activate, poll, cancel, and refund. AI agents can use the VirtualSMS MCP Server for one-install integration with Claude, Cursor, Codex, Windsurf, and other MCP-compatible clients.

Claude (Anthropic) Verification Number in Bulgaria

Get a real Bulgaria (+359) phone number for Claude (Anthropic) verification. Physical SIM card, not VoIP. Instant SMS delivery.

Published Jan 21, 2026·Updated Jun 13, 2026

Live pricing shown on the next step

TL;DR

VirtualSMS provides Claude (Anthropic) verification via real Bulgaria mobile numbers (+359 prefix) — physical carrier-issued SIM cards, not VoIP. Bulgaria numbers from regional operators pass Claude (Anthropic)'s network-detection checks where Google Voice, TextNow, and MySudo get rejected as disposable. Numbers activate in under 30 seconds. Pricing from $— per activation, paid in USDT, USDC, BTC, LTC, or SOL via NOWPayments. If the Claude (Anthropic) code doesn't arrive within 20 minutes, your balance is refunded automatically. Alternative to hero-sms, 5sim, SMSPool, SMS-Man, OnlineSim for Bulgaria Claude (Anthropic) verification — with real SIMs instead of shared VoIP pools.

How to Verify Claude (Anthropic) with a Bulgaria Number

📝

Create your VirtualSMS account in 30 seconds

💰

Add Balance

Deposit with crypto — fast and anonymous

📱

Select Bulgaria

Choose Claude (Anthropic) + Bulgaria and get your number

✅

Get Your Code

Enter the number in Claude (Anthropic), receive SMS instantly

Why VirtualSMS for Claude (Anthropic) in Bulgaria?

Real SIM Cards

Physical Bulgaria SIM cards from real carriers — not VoIP numbers that get rejected.

Instant SMS

Verification codes arrive within seconds. No delays, no missed messages.

Full Privacy

Pay with crypto. No personal info required. Your real number stays private.

Which Bulgaria carriers we run

Bulgaria Claude (Anthropic) activations come from a mix of tier-1 mobile networks and the MVNOs that diaspora communities lean on for cheap international rates. The pool rotates with stock — right now you're likely to get a SIM from A1 Bulgaria, Yettel Bulgaria or one of the MVNO brands that ride those same networks: Vivacom. All real mobile-network SIMs, not VoIP. Claude (Anthropic)'s anti-VoIP detection (the same check that rejects Google Voice and Twilio numbers) sees these as regular Bulgaria mobile lines because that's what they are.

All Claude (Anthropic) numbers

Claude (Anthropic) Numbers in Other Countries

Other Services in Bulgaria

Claude (Anthropic) verification with Bulgaria numbers — FAQ

Are these real Bulgaria SIM cards for Claude (Anthropic)?

Yes — real physical Bulgaria SIM cards on actual carrier networks (+359), not VoIP. Claude (Anthropic) verification systems pass these consistently because they look identical to a regular Bulgaria mobile number to Claude (Anthropic)'s detection.

How fast does the SMS code arrive on a Bulgaria number for Claude (Anthropic)?

Most Claude (Anthropic) verification codes arrive in under 30 seconds on our Bulgaria numbers. If no code is received within 20 minutes, the order is automatically refunded to your VirtualSMS balance.

Can I use a Bulgaria number for Claude (Anthropic) from outside Bulgaria?

Yes. The Bulgaria number is a real local line — the SMS code is forwarded to your VirtualSMS dashboard instantly, and works from anywhere in the world for Claude (Anthropic) signup or verification.

What payment methods are accepted for Claude (Anthropic) Bulgaria numbers?

Crypto only: USDT, USDC, BTC, LTC, and SOL via NOWPayments. No card or PayPal needed. Deposits credit to your balance and you pay per SMS verification — no recurring charges.

Claude (Anthropic) guides & insights

Telegram Blocked in Russia 2025: How to Verify With a Virtual Number

Russia's telecom operators are blocking Telegram verification SMS. Learn how to verify Telegram using non-Russian EU virtual numbers that still work — step-by-step guide.

8 min read2026

WhatsApp 20-Number Limit: How Agencies Scale Past It

Discover the hidden restriction killing agency growth and how virtual numbers provide unlimited scaling potential. Proven strategies to scale from 20 to 500+ numbers.

8 min read2024

How to Verify TikTok Without Your Phone Number (2026 Guide)

Verify TikTok without your personal phone number using real SIM virtual numbers. Step-by-step guide with 95%+ success rate.

8 min read2026

· About the authors ·

Written by

VirtualSMS Team

Real-SIM verification infrastructure · Operating since 2022

VirtualSMS operates its own physical SIM infrastructure for SMS verification across 145+ countries, including Bulgaria. Every pricing number, success rate, and country recommendation on this page comes from our live order logs for Claude (Anthropic) verification — not aggregator estimates, not scraped benchmarks. When Claude (Anthropic)'s anti-spam behavior shifts in Bulgaria or globally, the data here shifts with it.

Years operating

145+

Countries

2500+

Services

Published integrations

npm PyPI Packagist RubyGems NuGet MCP server

Get your Claude (Anthropic) number and verify in the next 3 minutes

Real physical Bulgaria SIM. Pay per SMS. Refund if code doesn't arrive within 20 minutes.