Mobile (cellphone) numbers in the Netherlands begin with 06, which is +31 6 in international format.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Several islands in the Caribbean Sea are part of the Kingdom of the Netherlands.
The Caribbean Netherlands, also known as the BES Islands, consist of Bonaire, Sint Eustatius, and Saba. Together with Curaçao, they use country code +599.
+599 3 = Sint Eustatius
+599 4 = Saba
+599 7 = Bonaire
+599 9 = Curaçao
+599 5 = Sint Maarten (use +1 721)
Aruba uses country code +297.
Sint Maarten, the Dutch half of the island that also has French Saint-Martin (+590), is now part of the North American Numbering Plan, country code +1, area code 721.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
The Netherlands Antilles no longer exists as a political entity. It was dissolved on 2010-10-10.
Aruba is now telephone country code +297.
Sint Maarten is now part of the North American Numbering Plan, with telephone country code +1 and area code +1 721.
The other islands that formerly constituted the Netherlands Antilles (Curaçao, Bonaire, Sint Eustatius, and Saba) have retained telephone country code +599.
mobile phone
23480 is a Nigerian mobile telephone.
A UK telephone number beginning with +44 754 is a mobile.
To call a mobile in Florida from Cyprus, dial your international prefix (00), then the country code for USA (1), then the area code and mobile number. Florida has 17 area codes; in the US and Canada, mobile numbers are intermixed with landlines in the same geographic area codes.
A French telephone number beginning with +33 6 (or 06 in domestic format) is a mobile phone.
Turkey's area code 559 is one of the codes for Avea mobile phones, used throughout the country. However, with mobile number portability, the individual user may use a different mobile service.
Hyderabad is part of the Andhra Pradesh mobile calling circle, which has many, many different mobile codes assigned to it.
A telephone number in India beginning with 0814 is a mobile. 08142 and 08143 are in Andhra Pradesh.
A telephone number in India beginning with +91 9814 is a mobile, probably in or near Punjab.
A Pakistani telephone number beginning with 03 (or +92 3 in international format) is a mobile.
The country code and area code of Ane, Netherlands is 31, (0)524.
An Australian telephone number beginning with 04, or with +61 4 in international format, is a mobile phone.