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+84

Vietnam phone numbers

0912 345 678

International +84 912 345 678, E.164 +84912345678

The numbering plan of Vietnam: formats, lengths, the regular expression for each line type and the prefix blocks allocated to each carrier, as ITU publishes it. A pattern says what a number looks like and where it was allocated; whether it is in service, and who serves it today, is a different question (below).

At a glance

Country code
+84
Exit code
00
Trunk prefix
0
Mobile digits
9
Fixed-line digits
10
Number portability
not listed
Carriers on record
7

How to dial a number in Vietnam from anywhere: the dialling helper.

Mobile numbers start with:010305070809
Mobile prefix blocks by operator
MobiFone
8
G-Mobile
6
Viettel
6
Vietnamobile
4
Vinaphone
3
2 other operators
3

prefix blocks allocated, from the published records; a block is a prefix at the plan's allocation length

Check a number

Valid mobile number in Vietnam.

+84
country code
912
network code
345678
subscriber number
CountryVietnam numbering plan
Line typeMobile
Carrier the block was allocated toVinaphone
E.164+84912345678
International+84 912 345 678
National0912 345 678
RFC 3966tel:+84-912-345-678

Source: National numbering plan: Viet Nam (ITU)

Test a pattern

Tick the line types you accept, copy the combined pattern, and paste numbers to see which range each one falls in. Numbers are reduced to their national digits first (no spaces, no +84, no trunk prefix 0); nothing leaves your browser.

Line types to accept
^(?:121[0-3]\d{5}|(?:1[46]0|(?:3\d|7[06-9])\d|5(?:[1689]\d|2[238]|59)|8(?:[1-8]\d|9[6-9])|9(?:[0-8]\d|9[013-9]))\d{6}|2(?:0[3-9]|1[0-689]|2[0-25-9]|[38][2-9]|4[2-8]|5[124-9]|6[0-39]|7[0-7]|9[0-4679])\d{7})$
NumberNational digitsMatches
0912 345 678912345678Mobile
0210 1234 5672101234567Fixed line
1800 1234561800123456not in the ticked types
067 201 23 45672012345not in the ticked types

Need another country, or the pattern as code in your language? Open the regex builder.

Walk the prefixes

Type the first digits of a number in national form, or tap them: the operators holding blocks under those digits, then the block a full prefix falls in. 30 blocks held by 7 operators are on record.

Type the first digits of a number in national form.

In full

Cheat sheet

Country code+84
International exit code (dialling out)00
Trunk prefix (national dialling)0
Mobile number length (national digits)9
Fixed-line number length (national digits)10
E.164 example+84912345678
RFC 3966 (tel: URI)tel:+84-912-345-678
Mobile number portabilityNot listed

Line types and their regular expressions

Match each pattern against the national significant number: digits only, without the trunk prefix 0 and without +84. The patterns follow the national numbering plan and are anchored here.

Line typeNational digitsExample, nationalExample, E.164
Mobile90912 345 678+84912345678
Fixed line100210 1234 567+842101234567
Toll-free8 to 101800 123456+841800123456
VoIP9067 201 23 45+84672012345
Premium-rate8 to 101900 123456+841900123456
UAN7 or 80199 2000+841992000

Mobile, 9 digits

^(?:121[0-3]\d{5}|(?:1[46]0|(?:3\d|7[06-9])\d|5(?:[1689]\d|2[238]|59)|8(?:[1-8]\d|9[6-9])|9(?:[0-8]\d|9[013-9]))\d{6})$

Fixed line, 10 digits

^(?:2(?:0[3-9]|1[0-689]|2[0-25-9]|[38][2-9]|4[2-8]|5[124-9]|6[0-39]|7[0-7]|9[0-4679])\d{7})$

Toll-free, 8 to 10 digits

^(?:1800\d{4,6}|12(?:0[13]|28)\d{4})$

VoIP, 9 digits

^(?:672\d{6})$

Premium-rate, 8 to 10 digits

^(?:1900\d{4,6})$

UAN, 7 or 8 digits

^(?:[17]99\d{4}|69\d{5,6})$

Carrier prefix blocks

The operator each prefix block was allocated to, in national form, from the published allocation records for +84.

OperatorLine typePrefix blocksRanges
MobiFoneMobile807, 014, 030, 051, 089, 090, 093, 0121
G-MobileMobile6059, 0993–0997
ViettelMobile603, 016, 086, 096–098
VietnamobileMobile4052, 056, 058, 092
VinaphoneMobile308, 091, 094
Indochina TelecomMobile20998–0999
ReddiMobile1055

Questions developers ask

How many digits does a phone number in Vietnam have?
Mobile numbers have 9 national digits. Fixed line numbers have 10 national digits. That is the national number, without the country code +84 and without the trunk prefix 0.
What is the country code for Vietnam?
+84. From abroad, dial your own exit code, then 84, then the national number without its trunk prefix 0. From inside Vietnam, the exit code for international calls is 00.
Which prefixes are mobile numbers in Vietnam?
Mobile numbers start with 01, 03, 05, 07, 08 or 09 in national form; the mobile regular expression on this page gives the exact ranges (example: 0912 345 678). The carrier table shows which prefix blocks were allocated to which operator.
Can a mobile number in Vietnam be ported to another carrier?
Not on record. The plan data this page is built from does not list mobile number portability for Vietnam, so the carrier a prefix was allocated to is likely, not certainly, the carrier serving the number. Only a live carrier lookup (an HLR or MNP query) confirms it.