why would a call come up as unknown number?..

[Jenarry]

I'm just curious so does anyone know why a call would come up as unknown number on my mobile phone. Does it mean that someone has dialled 141 (can you still do this and is it only on landlines)before ringing my mobile number or just that it's someone who is not in my phonebook ringing.
I'm asking because my mobile phone rang at 6am this morning.
My phone said unknown number and when I answered no-one actually talked but i could hear noises like when you ring someone by mistake. This wouldn't bother me but I know that my boyfriend's nutty ex girlfriend has somehow got my mobile number and i have a horrible feeling it was her ringing me. :O( she has a police harassment notice on her as she wouldn't leave us alone .

[ubasses]

If from a land line they can dial 141 or if a mobile they can program it to hide their number

[starone]

Change your number just in case.

[Jenarry]

i don't like the sound of that. :O( i know her mobile number because she text me a week or so ago. i know i can block numbers from ringing me on my mobile but do i guess right that this won't work if she does this?

[Old_Geezer]

I thought it said blocked or unavailable if you simply hadn't been passed the information. Could be wrong but I'd have thought unknown meant that the number hadn't been passed to the mobile company? Or I suppose the wording could be down to there handset manufacturer.

[Jenarry]

sorry was question to ubasses.

[hc4361]

Could be calling from Skype or other VOIP.
My Skype always shows as number unknown when I use it to call a landline or mobile.

[Old_Geezer]

To anyone who can enlighten. I'm not fussed where information comes from :-)

[Arti]

you can use 141 from a mobile to hide your number

[Jenarry]

sorry. just the time delay on here old geezer. was asking question to ubasses then starbuckone's suggestion came up in between so was trying to clarify. i always welcome all advice and suggestions.

[Old_Geezer]

Yeah they need awarning to come up saying there have been further posts since you looked at the thread, and do you want to check them first before confirming your new post.
Another improvement opportunity for the site ;-)

[Jenarry]

yes that would be good old geezer. thanks arti. i didn't realise you could do 141 with mobiles too ..just that my boyfriend thinks that she doesn't have a landline.