Friday, 1 February 2008

What is a MAC code?

I thought I'd look up what a MAC code was and how long it took to get.

I've read some ISPs give it within 15 minutes by email. That's pretty fast!

A MAC is a unique code, identifying a particular line. It comes in two formats. You do not need to worry about which format is used:

  • a code consisting of four letters that identify the underlying service (BBIP, FTIP or BBDS) followed by between seven and nine numbers, a slash, and five alphanumeric characters (e.g. BBIP1234567/1F6HT); and
  • a code consisting of four letters (LLUS), followed by six digits followed by four further digits showing the expiry date (i.e. LLUS123456ddmm).
info from OFCOM

A MAC code is only valid for 30 days.

MAC stands for Migration Authority Code

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