Bulgaria phone number validator
How the phone number format works
- Format
- Bulgaria phone number in national or international (+359) format
- Example
- +35943012345
Things to watch for
- Accepts national or international (E.164, e.g. +359...) format
- Validated with Google's libphonenumber; confirms the number is possible/valid for this country, not that it is currently assigned or reachable
^[+]?[0-9 ()\-]{6,}$A Bulgarian phone number takes one of two shapes: a mobile as 08 plus two digits and six more (0888 123 456, ten digits total), or a landline pairing a regional area code — Sofia’s is the short 02 — with a local number whose length varies inversely with the area code’s, the way it does in several other European numbering plans. Converting to the +359 international form is simple in principle but easy to fumble: drop the leading 0, prepend +359, nothing else changes.
How this validator works
Type the number in local form or full international form (+359888123456); this tool runs it through Google’s libphonenumber library entirely in your browser, checking the mobile prefix and length, or the area-code-plus-local-number combination for landlines, against Bulgaria’s actual numbering-plan rules — not a one-size digit count. Nothing is sent to a server, and results update as you type.
What a pass doesn’t tell you
A pass means the number is correctly shaped for Bulgaria — it says nothing about whether the number is currently assigned, active, or belongs to whoever handed it to you. Bulgaria’s telecom regulator and mobile operators are the only ones who can confirm live status.
Scope: this is a format and structure check, useful for catching a mistyped digit or a wrongly-placed trunk prefix before a number reaches a database or an SMS send — not a substitute for a real line-status lookup.
Content last reviewed 2026-07-07.
phone number FAQ
Does a valid Bulgarian number mean it's currently connected?
No. It confirms the digits match a real Bulgarian mobile or landline pattern — correct prefix and plausible length — not that the SIM or line is active. Bulgaria's mobile market has significant prepaid turnover, so a well-formed number can still be dead.
Why does my Bulgarian landline number look shorter than a mobile number?
Landline length in Bulgaria depends on the area code: Sofia's short area code (02) leaves room for a longer local number, while smaller towns with longer area codes have shorter local numbers. Mobile numbers, by contrast, follow one consistent 08-plus-eight-digit pattern nationwide.
How does a Bulgarian number change between local and +359 format?
Drop the leading 0 and prepend +359 — a mobile like 0888 123 456 becomes +359888123456. That leading 0 is a domestic trunk prefix only; it's never combined with the +359 country code.