Supported countries and regions

Any international number with a country code can be submitted, except numbers from mainland China (+86). Here are the rules and the country codes of common countries.

Rules for submitting numbers

Country code required
Write every number in international format with its country code; the leading + is optional. A number in local format cannot be matched to a country, counts as malformed and is not charged.
Mainland China not supported
Numbers from mainland China (+86) cannot be submitted.
North America carrier lookup
Covers country code +1 only: the United States, Canada and the other North American Numbering Plan regions.
WhatsApp registered check
May keep only the numbers of the country that appears most in your file. Numbers from other countries are removed at quote time and not charged.

Featured countries

Common countries and regions

This is not a complete list; countries not shown can be submitted too, except mainland China (+86).

Asia

Country or region	Country code	Notes
Hong Kong	`+852`
Macao	`+853`
Taiwan	`+886`
Japan	`+81`
South Korea	`+82`
India	`+91`
Indonesia	`+62`
Vietnam	`+84`
Thailand	`+66`
Philippines	`+63`
Malaysia	`+60`
Singapore	`+65`
Pakistan	`+92`
Bangladesh	`+880`
Cambodia	`+855`
Myanmar	`+95`
Nepal	`+977`
Sri Lanka	`+94`
Saudi Arabia	`+966`
United Arab Emirates	`+971`
Türkiye	`+90`
Israel	`+972`
Kazakhstan	`+7`
Uzbekistan	`+998`

Europe

Country or region	Country code	Notes
Russia	`+7`
Ukraine	`+380`
UK	`+44`
Germany	`+49`
France	`+33`
Italy	`+39`
Spain	`+34`
Portugal	`+351`
Netherlands	`+31`
Poland	`+48`
Romania	`+40`
Sweden	`+46`
Belgium	`+32`
Switzerland	`+41`
Greece	`+30`

Americas

Country or region	Country code	Notes
US	`+1`	Carrier lookup available
Canada	`+1`	Carrier lookup available
Mexico	`+52`
Brazil	`+55`
Argentina	`+54`
Colombia	`+57`
Peru	`+51`
Chile	`+56`
Venezuela	`+58`

Africa

Country or region	Country code	Notes
Nigeria	`+234`
Egypt	`+20`
South Africa	`+27`
Kenya	`+254`
Morocco	`+212`
Ghana	`+233`
Ethiopia	`+251`
Algeria	`+213`

Oceania

Country or region	Country code	Notes
Australia	`+61`
New Zealand	`+64`

Interactive number format & deduplication check

Paste a few test lines below to preview how CheckIM validates country codes and removes duplicates locally in your browser (zero upload; duplicates and malformed rows are never billed).

Test number lines (one per line)

3Billable unique numbers

1Duplicates removed (Free)

1Malformed / missing code (Free)

1+86 blocked (Free)

+55 11 98765-4321Valid E.164 · Counted in quote
+62 812-3456-7890Valid E.164 · Counted in quote
+5511987654321Duplicate · Removed free of charge
0812-3456-7890Missing country code / invalid length · Free
+86 13800138000Mainland China (+86) unsupported · Free
+1 202-555-0143Valid E.164 · Counted in quote

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