Is this a Premium number

grumbler

redux wrote: »

It's impossible to do that.

Why? When porting was introduced, was it really a problem to require checking a number (first digits actually) against a database before porting it?

I am no expert, so tell me it in layman's terms, please.

'Non UK' networks have some sets of numbers allocated.
Porting between 'UK' and 'non UK' is not allowed.
So is any transferring/selling/buying etc.

redux

grumbler wrote: »

Why? When porting was introduced, was it really a problem to require checking a number (first digits actually) against a database before porting it?

I am no expert, so tell me it in layman's terms, please.

'Non UK' networks have some sets of numbers allocated.
Porting between 'UK' and 'non UK' is not allowed.
So is any transferring/selling/buying etc.

I can't understand this, and now I'm wondering whether you mean number porting or allocation of prefixes

Porting mobile numbers between networks of different territories is impossible.

It's more intuitively obvious that you can't port a UK number to France for example, but you also cannot port UK numbers to Isle of Man Guernsey or Jersey, or vice versa, nor between any of the others.

The 07937 number in the OP is allocated to Jersey Telecom. It is probably still on Jersey Telecom, but it could possibly have been ported to the other Jersey networks Airtel-Vodafone or Sure, nowhere else. But that doesn't affect UK customers anyway, as it would still be a Jersey number. More likely is it's still on JT and maybe on an ekit SIM.

grumbler

redux wrote: »

I can't understand this, and now I'm wondering whether you mean number porting or allocation of prefixes

I mean both.

Porting mobile numbers between networks of different territories is impossible.

It's more intuitively obvious that you can't port a UK number to France for example, but you also cannot port UK numbers to Isle of Man Guernsey or Jersey, or vice versa, nor between any of the others.

The 07937 number in the OP is allocated to Jersey Telecom. It is probably still on Jersey Telecom, but it could possibly have been ported to the other Jersey networks Airtel-Vodafone or Sure, nowhere else. But that doesn't affect UK customers anyway, as it would still be a Jersey number. More likely is it's still on JT and maybe on an ekit SIM.

Is 'ekit SIM' a layman's term?
Can "Channel Islands and Isle of Man" numbers listed at http://www.area-codes.org.uk/07.php never be ported to UK networks?
Why T-mobile's list of numbers " which aren't treated as a UK mobile" numbers is different from the above and "not limited to"?

I think it would be easier for me just to give up than to keep trying to understand all this mess resulting in me having to call T-mobile to check every new mobile number before dialing it.

redux

grumbler wrote: »

I mean both.

Is 'ekit SIM' a layman's term?
Can "Channel Islands and Isle of Man" numbers listed at http://www.area-codes.org.uk/07.php never be ported to UK networks?
Why T-mobile's list of numbers " which aren't treated as a UK mobile" numbers is different from the above and "not limited to"?

I think it would be easier for me just to give up than to keep trying to understand all this mess resulting in me having to call T-mobile to check every new mobile number before dialing it.

ekit is a brand name of a company providing its own global roaming SIMs (and also some ordinary single country SIMs), and now owned by Jersey Telecom.

No the island networks' numbers can not be ported to UK networks, or vice versa.

T-mobile is a law unto itself in some respects about other numbers.

There are some VoIP brands which have mobile number allocations.

And there are various UK mvno brands which operate of course as resident on one UK network or another, but have their own number allocation series, such as Lyca.

There are also some global roaming or multi-ID SIMs with their own number prefix series, including Piranha, Maxroam, several branded resellers of Cloud9/Wire9, Truphone. Some of those are based at a wholesale level on a SIM ID from another country, with a UK number attached, but that's not the same as porting at retail level

And there are some mobile prefixes used for callthrough arrangements, to make international calls from inclusive minutes. Some of these tend to be short lived as far as their inclusion in contract minutes go, once large volumes of traffic are discovered by networks.

T-mobile tends to be stricter on non main network prefixes than most, and can tend to describe some of the previous types of uses I described as in the last category, or exclude them for whatever other reasons it has.

Sometimes that might be fair enough, sometimes possibly unfair, and sometimes open to argument by customers about the ones somewhere in between

Overall though, as people have said before, going back years to when Yourcallworld (and their range of agents/resellers) 07744 and 07755 prefixes were for a while included and then gradually squeezed out, Ofcom doesn't control whether numbers are included in contract bundles or not, and the concept of cross-network minutes was a marketing invention by the networks, not mandated.

Yes, it can be confusing keeping track of the various exceptions.

More often than not a caller would know that they are calling an ordinary mobile of someone in Jersey, as the person would be usually living there and maybe over for a visit

There are also some of these global roaming SIMs though, and JT does seem to use 07937 in association with those.

cookie365

In short: you can port a UK number to another UK operator, but not to a non-UK operator like Manx or Jersey.

So if you dial my mobile number, which originally was what is now EE, you neither know nor care what operator it is now, but you know it won't be a Jersey or Manx number, and won't be charged like one.

When networks offer free calls to other customers on the same network, they use their own subscriber lists to determine if the recipient number qualifies, not the generic list I linked to.