Both UK geographic numbers, and non-geographic numbers (‘NGN’, e.g. 0800 0845, 0330 numbers) can be ported into our SIP Trunk Plus service via one or the other of our two underlying carriers.  In order for a port to take place a porting agreement must be in place between the network providers.


You can look up the current provider and range holder of a given number here: http://www.telecom-tariffs.co.uk/codelook.htm: the ‘Original Operator’ is the Range Holder and this must be one of the Network providers listed in the table below; the ‘Operator’ is the ‘Current Communications Provider / Operator’.



Carrier 1

Carrier 2

Network

Geo

Non-Geo

Geo

Non-Geo

Affinity

No

No

Yes

Yes

AQL

No

No

Yes

Yes

BSkyB (subsequent LCP Import Only)

No

Yes

Yes

No

BT

Yes

Yes

Yes

No

Cable & Wireless (incL. Energis, Thus, Your Communications)

Yes

Yes

Yes

Yes

Colt

Yes

Yes

No

No

Eurobel

No

No

Yes

Yes

Gamma

Yes

Yes

Yes

Yes

Global Crossing / Level 3

Yes

Yes

No

No

Inclarity

Yes

Yes

Yes

No

KCom/Affinity (excl. Kingston Hull numbers)

Yes

Yes

Yes

No

Magrathea

Yes

Yes

Yes

Yes

Mintaka

Yes

Yes

No

No

Opal (incl. Carphone Warehouse)

No

No

Yes

Yes

Simwood eSMS

Yes

No

No

No

Spitfire

Yes

No

Yes

No

Storacall (X-On)

Yes

No

No

No

Talk Talk (Subsequent LCP Import Only)

Yes

No

No

No

Telephony Services

Yes

Yes

No

No

Telewest

No

No

Yes

No

Thus (incl. Your Comms)

Yes

No

No

No

Verizon

Yes

Yes

Yes

No

Viatel (UK) Ltd/ MDNX

Yes

No

Yes

Yes

Virgin Media (incl. NTL, Telewest & Eurobell)

Yes

Yes

Yes

No

Voxbone

Yes

Yes

No

No


In order to ascertain what network is being used for the numbers you wish to port, use the link detailed above but also speak to the losing communications provider and ask what network do the telephone numbers currently route via then contact us and we’ll send you the appropriate form to complete.