The country code for Singapore is +65. There are no city codes or area codes.
Mobile numbers begin with +65 8 or +65 9, not including +65 800.
Landline numbers begin with +65 6.
VoIP numbers begin with +65 3.
(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.)
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.
The telephone country code +91 is the country code for India. The area code +91 814 is a mobile phone code within India, specifically assigned to the state of Punjab. When dialing internationally, you would dial the country code +91 followed by the area code 814 and the subscriber number to reach a mobile phone in Punjab, India.
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.
Hyderabad is part of the Andhra Pradesh mobile calling circle, which has many, many different mobile codes assigned to it.
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.
SingTel Mobile is in Singapore, which does not have area codes. Singapore is telephone country code +65.(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.)
A Pakistani telephone number beginning with 03 (or +92 3 in international format) is a mobile.