veriastra_
Free Estonia Phone Format Tool

Estonia (+372 / 00372): 7 to 8 digits

Locals write 5123 4567. An API wants +37251234567. Paste any Estonia number below to see it normalised, validated, and identified.

veriastra — phoneready
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# free & rate-limited · no signup · live results from the same engine as the API

Since the engine is the same one the API runs, a key does not buy you a better answer. It buys volume, bulk jobs and a signed receipt.

this page calledPOST /api/lookup-phone
without a key3 free, then a proof of work · 5/min · 50/day
with a key1 credit · $0.0015 to $0.0032 each
in bulk10,000 rows in one job, CSV or NDJSON back
The rules

How Estonia numbers are written

Country calling code
+372
Dialled from abroad
00372 (011 372 from the US and Canada)
ISO country code
EE
National number length
7 to 8 digits
Trunk prefix
None
Written locally
5123 4567
E.164 format
+37251234567

What +372 means

+372 is the country calling code for Estonia. The same code is written 00372 when you dial out from most of Europe, Africa and Asia, and 011 372 from the US and Canada. All three reach the same place: only the exit code in front of it changes. Estonia uses no trunk prefix, so the national number follows the code unchanged.

Mobile numbers

No trunk prefix. Mobiles start with 5.

Converting to E.164

Take the number as written locally (5123 4567), add the +372 prefix (there is no trunk digit to remove). The result is +37251234567: no spaces, no dashes, no parentheses. Store that, and format for display only when you show it to a human.

Why not do it with a regex

A pattern that matches Estonia numbers today breaks the moment a new mobile range is allocated, and it cannot tell you whether the number is actually assigned. The tool above runs the same numbering-plan engine as our phone validation API, so it also reports line type and region rather than just shape.

That is how a Estonia number is written. Whether a whole list is worth dialling is the free call list cleaner, or check one number on the spam phone checker.