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National Destination Code:121

This is the United Kingdom National Destination Code:121 Area Code Database page list. You can click the title to browse the detail information.
Region Code: BIR
Region Name City Sn from Sn to Carrier Name Number Type
Birmingham Birmingham 3730000 3739999 BT G
Birmingham Birmingham 3740000 3749999 Telappliant Ltd G
Birmingham Birmingham 3750000 3759999 Tuxtel Ltd G
Birmingham Birmingham 3760000 3769999 TeleWare PLC G
Birmingham Birmingham 3770000 3779999 BT G
Birmingham Birmingham 3780000 3789999 BT G
Birmingham Birmingham 3790000 3799999 Excell Group Plc G
Birmingham Birmingham 3800000 3809999 BT G
Birmingham Birmingham 3810000 3819999 Nodemax Limited G
Birmingham Birmingham 3820000 3829999 BT G
Birmingham Birmingham 3830000 3839999 Plus Telecom Limited G
Birmingham Birmingham 3840000 3849999 BT G
Birmingham Birmingham 3850000 3859999 Keycom plc G
Birmingham Birmingham 3860000 3869999 BT G
Birmingham Birmingham 3870000 3879999 Orbis Telecom G
Birmingham Birmingham 3880000 3889999 Nexus Telecommunications Limited G
Birmingham Birmingham 3890000 3899999 BT G
Birmingham Birmingham 3900000 3909999 TelecomIQ Limited G
Birmingham Birmingham 3910000 3919999 IP Phone Solutions Ltd G
Birmingham Birmingham 3920000 3929999 Magrathea Telecommunications Limited G
Birmingham Birmingham 3930000 3939999 COLT Technology Services G
Birmingham Birmingham 3940000 3949999 Fluency Communications Ltd G
Birmingham Birmingham 3950000 3959999 BT G
Birmingham Birmingham 3960000 3969999 Radius Communications Limited G
Birmingham Birmingham 3970000 3979999 Hannon Telecom Voice G
Birmingham Birmingham 3980000 3989999 Syntec Limited G
Birmingham Birmingham 3990000 3999999 iHub UK Ltd G
Birmingham Birmingham 4000000 4009999 Numbergroup Network Ltd G
Birmingham Birmingham 4010000 4019999 Windsor Telecom Plc G
Birmingham Birmingham 4020000 4029999 Ace Call Limited G
Birmingham Birmingham 4030000 4039999 IP Base Ltd G
Birmingham Birmingham 4040000 4049999 TeleSurf Limited G
Birmingham Birmingham 4050000 4059999 Invoco Ltd G
Birmingham Birmingham 4060000 4069999 British Sky Broadcasting Limited G
Birmingham Birmingham 4070000 4079999 Verizon UK Ltd G
Birmingham Birmingham 4080000 4089999 British Sky Broadcasting Limited G
Birmingham Birmingham 4090000 4099999 Stour Marine Limited G
Birmingham Birmingham 4100000 4109999 BT G
Birmingham Birmingham 4110000 4119999 BT G
Birmingham Birmingham 4120000 4129999 Vodafone Ltd (Energis) G
Birmingham Birmingham 4130000 4139999 Sky UK Limited G
Birmingham Birmingham 4140000 4149999 BT G
Birmingham Birmingham 4150000 4159999 BT G
Birmingham Birmingham 4160000 4169999 Digital Mail Limited G
Birmingham Birmingham 4170000 4179999 Resilient Plc G
Birmingham Birmingham 4180000 4189999 Calltracks Limited G
Birmingham Birmingham 4190000 4199999 Mundio Mobile Limited G
Birmingham Birmingham 4200000 4209999 BT G
Birmingham Birmingham 4210000 4219999 BT G
Birmingham Birmingham 4220000 4229999 BT G
Birmingham Birmingham 4230000 4239999 BT G
Birmingham Birmingham 4240000 4249999 Vodafone Ltd (C&W) G
Birmingham Birmingham 4250000 4259999 Syntec Limited G
Birmingham Birmingham 4260000 4269999 BT G
Birmingham Birmingham 4270000 4279999 BT G
Birmingham Birmingham 4280000 4289999 BT G
Birmingham Birmingham 4290000 4299999 BT G
Birmingham Birmingham 4300000 4309999 BT G
Birmingham Birmingham 4310000 4319999 I.T Communications Limited G
Birmingham Birmingham 4320000 4329999 BT G
Birmingham Birmingham 4330000 4339999 BT G
Birmingham Birmingham 4340000 4349999 BT G
Birmingham Birmingham 4350000 4359999 Magnetic North Software Limited G
Birmingham Birmingham 4360000 4369999 BT G
Birmingham Birmingham 4370000 4379999 i-Net Communications Group Plc G
Birmingham Birmingham 4380000 4389999 Core Telecommunications International Limited (Ireland) G
Birmingham Birmingham 4390000 4399999 TalkTalk Communications Limited G
Birmingham Birmingham 4400000 4409999 BT G
Birmingham Birmingham 4410000 4419999 BT G
Birmingham Birmingham 4420000 4429999 BT G
Birmingham Birmingham 4430000 4439999 BT G
Birmingham Birmingham 4440000 4449999 BT G
Birmingham Birmingham 4450000 4459999 BT G
Birmingham Birmingham 4460000 4469999 BT G
Birmingham Birmingham 4470000 4479999 BT G
Birmingham Birmingham 4480000 4489999 TalkTalk Communications Limited G
Birmingham Birmingham 4490000 4499999 BT G
Birmingham Birmingham 4500000 4509999 BT G
Birmingham Birmingham 4510000 4519999 BT G
Birmingham Birmingham 4520000 4529999 BT G
Birmingham Birmingham 4530000 4539999 BT G
Birmingham Birmingham 4540000 4549999 BT G
Birmingham Birmingham 4550000 4559999 BT G
Birmingham Birmingham 4560000 4569999 BT G
Birmingham Birmingham 4570000 4579999 BT G
Birmingham Birmingham 4580000 4589999 BT G
Birmingham Birmingham 4590000 4599999 BT G
Birmingham Birmingham 4600000 4609999 BT G
Birmingham Birmingham 4610000 4619999 Ziron (UK) Ltd G
Birmingham Birmingham 4620000 4629999 Teledesign Ltd G
Birmingham Birmingham 4630000 4639999 Sound Advertising Ltd G
Birmingham Birmingham 4640000 4649999 Virgin Media Wholesale Limited G
Birmingham Birmingham 4650000 4659999 Virgin Media Wholesale Limited G
Birmingham Birmingham 4660000 4669999 Virgin Media Wholesale Limited G
Birmingham Birmingham 4670000 4679999 OVH Limited G
Birmingham Birmingham 4680000 4689999 Voxbone SA G
Birmingham Birmingham 4690000 4699999 Net-Work Internet Ltd G
Birmingham Birmingham 4700000 4709999 (aq) Limited trading as aql G
Birmingham Birmingham 4710000 4719999 BT G
Birmingham Birmingham 4720000 4729999 BT G