Singapore Numbering System

Singapore Formatting Info & Dialing Code Instructions

The carrier for a number like +65 8221 2500 is probably StarHub
In NATIONAL format, aka ITU-T Recommendation E123, the number is written 8221 2500
Likewise, in E123 INTERNATIONAL formal, it is written +65 8221 2500

In E.164 standard format, the number is written +6582212500. E164 format is as per E123 INTERNATIONAL format but with no formatting applied.
In RFC3966 standard format, the number is written tel:+65-8221-2500. FC3966 is as per INTERNATIONAL format, but with all spaces and other separating symbols replaced with a hyphen, and with any phone number extension appended with ";ext=". It also will have a prefix of "tel:" added .

To dial this number from within the United States, one would dial 011 65 8221 2500
To dial this number from inside the United Kingdom or the European Union, one would dial 00 65 8221 2500

Numbers like +6582212500 may be located in the Asia/Singapore timezone, where the local time is currently Sunday the 1st of November 2020 02:22:21 AM.


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