San Marino country code, +378 explained.
Everything you need to call San Marino with Twiching — full dialing format, step-by-step guide, and Tier-1 CLI routes that land every call.
San Marino
San Marino City · Europe
· COUNTRY INFO · VERIFIED
- ISO Alpha-2
- SM
- Capital
- San Marino City
- Region
- Europe
- Timezone
- UTC+1
· DIALING GUIDE · VERIFIED
FULL DIAL FORMAT
011 · +378 · XXXXXXXX
How San Marino numbers break down
A complete number to San Marino follows this pattern. Twiching adds the exit and country codes automatically when you dial from the app.
EXIT CODE
Dial from the US/Canada to leave the country.
COUNTRY CODE
Routes the call directly into San Marino.
LOCAL NUMBER
The subscriber's local number.
COMPLETE NUMBER FORMAT
011 · +378 · XXXXXXXX
San Marino on the map
San Marino City · Europe
ROUTE
Tier-1 Direct
CLI
Verified
ASR
60%+ min
How to call San Marino
Click any step — watch the full dial string build piece by piece.
FULL NUMBER FORMAT
011 · +378 · XXXXXXXX
Twiching automatically adds the exit and country codes — just enter the local number.
San Marino —
connected across every carrier.
191
Countries in directory
SAN MARINO INCLUDED
99.97%
Call delivery rate
STIR/SHAKEN
500+
Carrier interconnects
TIER-1 DIRECT
60%+
Guaranteed ASR
REAL-TIME ROUTING
San Marino
Europe · SM
Built for clear international calling
Effortless to use
Dial naturally — Twiching adds exit and country codes for you and connects with verified caller ID to San Marino.
Comprehensive coverage
191 countries with Tier-1 routes, local caller ID, and full CLI delivery on every connection.
Accurate & verified
Every dialing code and format is kept current, so your call lands the first time, every time.
Permitted — AGCOM (Italy) / AASS regulated
Regulated by AASS (Azienda Autonoma di Stato per i Servizi) / AGCOM
- San Marino telecommunications are closely aligned with Italian regulations and AGCOM oversight.
- VoIP services must comply with San Marino's Law on Electronic Communications, mirroring EU directives.
- Emergency service access (113/118) is required for all VoIP operators providing services in San Marino.
US → San Marino
$0.020/min
per minute
San Marino → US
$0.015/min
per minute
More in Europe
Start free
Try it for 14 days.
See what a real phone stack does.
Phone numbers, voice, SMS and AI on one account. No credit card required — no charges during the trial.
Compliance with applicable regulations required.