Liechtenstein country code, +423 explained.
The country code for Liechtenstein is +423. To call Liechtenstein from the US, dial 011 423, then the 7-digit subscriber number. Below: the full dialing format, step-by-step guide, carriers, rates, and VoIP rules for Liechtenstein.
Liechtenstein
Vaduz · Europe
· COUNTRY INFO · VERIFIED
ISO Alpha-2
LI
Capital
Vaduz
Region
Europe
Timezone
UTC+1
· DIALING GUIDE · VERIFIED
FULL DIAL FORMAT
011 · +423 · XXXXXXX
How Liechtenstein numbers break down
A complete number to Liechtenstein 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 Liechtenstein.
LOCAL NUMBER
The subscriber's local number.
COMPLETE NUMBER FORMAT
011 · +423 · XXXXXXX
Liechtenstein on the map
Vaduz · Europe
ROUTE
Tier-1 Direct
CLI
Verified
ASR
60%+ min
Liechtenstein virtual phone numbers, built for business
You don't need to lease a physical line in Liechtenstein. A Twiching SIP trunk sends your existing PBX or softphone traffic through a local +423 number. Call quality stays the same, with no on-the-ground infrastructure.
Local +423 caller ID
Calls display a recognisable Liechtenstein number instead of an unfamiliar international one.
SIP trunking
Route your existing PBX or softphone through Twiching's Tier-1 trunk — no hardware swap.
Minutes to provision
Numbers activate in the dashboard the same day, with no on-the-ground carrier contract.
+423
Liechtenstein · ready to provision today
Tier-1 delivery into Liechtenstein, end to end
Direct interconnects with Telecom Liechtenstein and the wider Liechtenstein network mean calls skip lower-tier wholesale transit. This holds for every call, not just high-volume routes.
Liechtenstein
+423
191
Countries in directory
LIECHTENSTEIN INCLUDED
99.97%
Call delivery rate
STIR/SHAKEN
500+
Carrier interconnects
TIER-1 DIRECT
60%+
Guaranteed ASR
REAL-TIME ROUTING
How Liechtenstein phone numbers are structured
Numbering Format
COUNTRY
+423
LOCAL
XXXXXXX
Liechtenstein runs a closed numbering plan under country code +423. It is just a 7-digit subscriber number after the country code. No area code is needed.
Carriers & language
3 major networks cover Liechtenstein: Telecom Liechtenstein, FL1, Salt (roaming). Internet penetration is 98%. VoIP is permitted and regulated by AK (Office of Communications, Amt für Kommunikation). German is the main language and CHF is the currency. Use both when you write IVR scripts, SMS content and support hours.
Europe context
Most European numbering plans follow ITU-T E.164. They use a national trunk prefix that is dropped for international dialing. Cross-border VoIP is widely supported across the region.
Skipping the exit code
Reaching Liechtenstein from the US requires the 011 exit code ahead of +423 — skip it and the call won't connect.
Adding an area code that doesn't exist
Liechtenstein uses a closed plan — dial the +423 country code then the 7-digit subscriber number directly, with no area code.
Ignoring the time difference
UTC+1 governs local business hours in Liechtenstein; confirm the time there before placing the call.
Compliance, carriers & rates for Liechtenstein
Permitted — AK regulated
Regulated by AK (Office of Communications, Amt für Kommunikation)
VoIP is openly regulated in Liechtenstein under AK (Office of Communications, Amt für Kommunikation). You face no licensing hurdle before routing calls or SMS through a compliant provider like Twiching.
- VoIP services are regulated by the AK under the Liechtenstein Communications Act aligned with EEA rules.
- Emergency service access (112) is mandatory for all VoIP operators serving Liechtenstein subscribers.
- As an EEA member, Liechtenstein applies GDPR through the Data Protection Act (DSG).
Direct Tier-1 interconnect with Telecom Liechtenstein — no wholesale transit in between.
US → Liechtenstein
$0.018/min
Liechtenstein → US
$0.014/min
Billed per second, not rounded to the minute
How businesses use a Liechtenstein number
Look like a local business
A +423 number with Liechtenstein caller ID looks domestic. Unfamiliar international numbers get screened far more often.
Europe outbound & support
Run sales and support lines into Liechtenstein over Tier-1 routes. These connect with networks like Telecom Liechtenstein.
Built for UTC+1 hours
Multi-country teams can send Liechtenstein calls to whoever is awake and working in UTC+1. There is no need for separate numbers per shift.
No local carrier contract needed
Entering Liechtenstein over SIP trunking skips the local carrier contract. The number is set up and billed like every other Twiching market.
FAQ
Calling Liechtenstein — frequently asked questions
The country code for Liechtenstein is +423. To call from the United States, dial 011, then 423, then the local number. Twiching adds the 011 and +423 for you when you dial from the app. You only enter the local number.
Dial 011 (the US exit code), then 423 (the Liechtenstein country code). Then dial the 7-digit subscriber number. There is no area code or trunk prefix to add in between.
Liechtenstein is in Europe. Most European numbering plans follow ITU-T E.164. They use a national trunk prefix that is dropped for international dialing. Cross-border VoIP is widely supported across the region.
Liechtenstein's ISO 3166-1 alpha-2 code is LI. This is different from its dialing code (+423). The ISO code is used in domain names and shipping forms. The dialing code is what routes a phone call.
German is the main language in Liechtenstein. Write IVR prompts, SMS copy and support scripts in it for the best response rates. A greeting and menu in the local language often decide whether a caller stays on the line.
Liechtenstein uses a closed plan. A single 7-digit subscriber number follows the country code. There is no separate prefix. As a result, every number in the country is the same length.
Full country code directory
Liechtenstein is one of several Europe markets Twiching covers — browse the rest of the directory below to compare dial codes, VoIP rules, and rates across the region. All 190 other countries are listed below, Europe first.
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