El Salvador country code, +503 explained.
Everything you need to call El Salvador with Twiching — full dialing format, step-by-step guide, and Tier-1 CLI routes that land every call.
El Salvador
San Salvador · Americas
· COUNTRY INFO · VERIFIED
ISO Alpha-2
SV
Capital
San Salvador
Region
Americas
Timezone
UTC-6
· DIALING GUIDE · VERIFIED
FULL DIAL FORMAT
011 · +503 · XX · XXXXXXXX
How El Salvador numbers break down
A complete number to El Salvador 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 El Salvador.
AREA / MOBILE
Regional or mobile prefix — drop the leading 0.
LOCAL NUMBER
The subscriber's local number.
COMPLETE NUMBER FORMAT
011 · +503 · XX · XXXXXXXX
El Salvador on the map
San Salvador · Americas
ROUTE
Tier-1 Direct
CLI
Verified
ASR
60%+ min
SIP trunking and local numbers for El Salvador
Instead of leasing a physical line in El Salvador, a Twiching SIP trunk routes your existing PBX or softphone traffic through a local +503 number — same call quality, none of the on-the-ground infrastructure.
Local +503 caller ID
Calls display a recognisable El Salvador 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.
+503
El Salvador · ready to provision today
Tier-1 delivery into El Salvador, end to end
Direct interconnects with Tigo El Salvador and the wider El Salvador network mean calls skip lower-tier wholesale transit entirely, on every call, not just high-volume routes.
El Salvador
+503
191
Countries in directory
EL SALVADOR INCLUDED
99.97%
Call delivery rate
STIR/SHAKEN
500+
Carrier interconnects
TIER-1 DIRECT
60%+
Guaranteed ASR
REAL-TIME ROUTING
How El Salvador phone numbers are structured
Numbering Format
COUNTRY
+503
AREA
XX
LOCAL
XXXXXXXX
El Salvador uses an open numbering plan under country code +503. After the country code, a 2-digit area or mobile prefix is followed by a 8-digit subscriber number, giving a 10-digit national number. Domestic numbers are often written with a leading trunk "0" that is omitted when dialing El Salvador from abroad.
Carriers & language
El Salvador has 52% internet penetration and is served by 3 major mobile networks (Tigo El Salvador, Claro El Salvador, Digicel El Salvador). VoIP is permitted and regulated by SIGET (Superintendencia General de Electricidad y Telecomunicaciones). The local currency is USD and the primary language is Spanish, which shape IVR prompts, SMS content, and business-hours handling.
Americas context
Numbering across the Americas mixes the North American Numbering Plan (+1) with national E.164 plans, so mobile and fixed-line prefixes vary from country to country.
Skipping the exit code
From the US you must dial 011 before the +503 country code to reach El Salvador.
Keeping the national trunk "0"
That leading 0 on an El Salvador number is for domestic calls only; leave it out when dialing in after +503.
Ignoring the time difference
Before dialing El Salvador, check the local clock — it runs on UTC-6, and off-hours calls tend to go unanswered.
Compliance, carriers & rates for El Salvador
Permitted — SIGET regulated
Regulated by SIGET (Superintendencia General de Electricidad y Telecomunicaciones)
VoIP is openly regulated in El Salvador under SIGET (Superintendencia General de Electricidad y Telecomunicaciones), so there's no licensing hurdle to clear before routing calls or SMS through a compliant provider like Twiching.
- VoIP providers must register with SIGET and comply with the Telecommunications Law (Decree 142) for legal operation.
- SIGET requires operators to maintain emergency service (911) call routing for all VoIP subscribers in El Salvador.
- All operators must participate in number portability schemes and comply with SIGET interconnection pricing guidelines.
Direct Tier-1 interconnect with Tigo El Salvador — no wholesale transit in between.
US → El Salvador
$0.020/min
El Salvador → US
$0.016/min
Billed per second, not rounded to the minute
How businesses use an El Salvador number
San Salvador-recognisable numbers
Callers in San Salvador and across El Salvador see a familiar +503 prefix rather than a number they don't recognise and won't pick up.
Sales & support in one line
The same El Salvador number handles inbound support and outbound sales calls, both landing on Tier-1 routes into Tigo El Salvador and the wider network.
Time-zone-aware routing
Calls into El Salvador route to whichever team is on shift for UTC-6, instead of ringing a desk that's already gone home.
SIP trunking for market entry
Stand up an El Salvador presence on SIP trunking before committing to local infrastructure — the same number scales from a pilot to full local hiring.
FAQ
Calling El Salvador — frequently asked questions
Yes — El Salvador numbers include a 2-digit area or mobile prefix before the subscriber number. That prefix is what routes the call to the right regional or mobile network once it arrives in the country.
Yes — Twiching interconnects directly with Tigo El Salvador and other major El Salvador networks over Tier-1 routes for consistent call delivery. That direct interconnect is what keeps answer-seizure ratios high compared to routing through third-party wholesale transit.
3 major networks serve El Salvador: Tigo El Salvador, Claro El Salvador, Digicel El Salvador. Twiching interconnects directly with these carriers over Tier-1 routes rather than relying on third-party transit.
Calls from El Salvador to the US start at $0.016/min on Twiching, billed per second rather than rounded up to the minute. That rate applies regardless of which of the major local carriers the call originates on.
El Salvador's local currency is USD, which is worth factoring into any pricing or invoicing shown to customers there. Twiching's own per-minute rates to and from El Salvador are quoted in USD regardless of the local currency.
Twiching rates to El Salvador start at $0.020/min, and calls back from El Salvador to the US start at $0.016/min. Both directions are billed per second rather than rounded up to the nearest minute, on Tier-1 routes throughout.
Full country code directory
Americas is fully covered in Twiching's 191-country directory. Jump to any of the markets below for the same level of detail shown on this El Salvador page. All 190 other countries are listed below, Americas first.
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