East / west airband frequencies

Hi all.

This question has probably been asked a million times, but here goes.

Could anyone tell me which frequency the east -west bound traffic is on that flies over head Preston Lancashire towards Blackpool and Isle of Man. and the reverse way.

I know it used to be 135.575, according to Jethros, it is still showing as this frequency, it actually states 135.575. This frequency is still live as I am hearing traffic on it, mainly around the wirral area and some traffic going into Bristol.
I have an older Airband radio / scanner which I can not tune in some of the new frequencies, for example 132.860, I can not tune this in, but can still here traffic as my scanner will tune into 132.850.

Can anyone tell me what 135.575 was replced by.

Much appreciated and thanks in advance to anyone who replies.

Regards

Nordjet 415