ptz wrote on Oct 18
th, 2011 at 8:33pm:
What might be the key to crack the pattern are the first 2 digits of the internal extension, for example Ben_Mum's son extension was 58*** and the prefix was 514. Mine is 57*** and my prefix is 513. I have tested this ringing a few classmates and it works.
So it seems the geographical number is:
for internal extensions:
- 57ABC --> 01524 513ABC
- 58ABC --> 01524 514ABC
- 9ABCD --> 01524 59ABCD (usually office numbers)
I haven't discovered the geographical number for internal extensions starting with 55 yet. I have tried 01524 51XABC with X from 0 to 9 and it does not seem to work.
Hello and welcome to SAYNOTO0870.COM.
Thanks for posting this; it should help others with the same query.
Something else for you to try:
All number prefixes are allocated to a particular communications provider. For example, 07802 is O2. The same is true of geographic numbers.
01524 51 is Your Communications and 01524 59 is BT. The office system and residential halls system may be provided by different companies which would explain why they use geographic numbers allocated to different operators.
For this reason, I'd focus on looking for the numbers in the Your Communications blocks prefixed with the Lancaster STD code which are: 50, 51, 52.
You've shown how the internal extensions map to the geographic numbers; could you show how the 08 numbers relate to them as well? This will help people dialling in who don't know the extension number, but do know the 08 number.