Tag Archives: Telephone Exchanges

Grass Area 1/2 mile from Fenny Exchange / Bletchley (MK) bRAS near Bletchley Tesco roundabout.

A number of fibre cables from the Exchange and bRAS start to run North from this small grass area just down the road towards the Centre MK and SMBA Bradwell Abbey Exchange.

A fibre cable running to the Bank of England runs under one of these network chamber covers using dark fibre provided by Zayo (formerly Geo). 186k was taken over by Geo Networks and further by Zayo, so it’s most likely under those 186k covers.

MK Data Vault Survey Document

BT
Fibreway Ltd
Fibreway Ltd
Fibreway Ltd
Norweb Communications  Ltd
Norweb Communications  Ltd
KCL KCOM Group Ltd
186k Ltd now Zayo
186k Ltd now Zayo

The Secrets of Cornwall by Mark Thomas.

This video fuelled my interest in a more detailed search for the hidden buildings and ducts that make up the Internet Backbone of the UK.

Watched this video several hundred times pausing and following Mark’s journey mapping the sites he visited. Also used a number of sources like Secret Bases and Internet Maps to map other interesting sites. Some sites were found by endlessly and painfully zooming and scrolling Google Maps !

I have made up several KML files locating each these sites and the route of the GTN and other fibre cables.

My Mapped Points Of The Internet Backbone ( work in progress )

My Mapped Points of The National Grid ( work in progress )

Skewjack Farm – SoC 16:45
Skewjack Farm – SoC 16:45
Skewjack Farm – SoC 16:45
Skewjack Farm – SoC 16:45
Skewjack Farm – SoC 16:45
Possible Cable Route from Skewjack to Unoccupied Building GHCQ ?
BT Lands End – SoC 20:55
BT Lands End – SoC 20:55
Virgin Media Rodricks Farm – SoC 22:00
Virgin Media Rodricks Farm – SoC 22:00
Virgin (NTL) Interconnect SoC 22:00
Verizon Relay Station – Soc 22:30
Verizon Relay Station – Soc 22:30
Verizon Relay Station – Soc 22:30
Verizon Relay Station – Soc 22:30
Verizon Relay Station – Soc 22:30
Verizon Relay Station – Soc 22:30
Verizon Relay Station MHC – Soc 22:47
Verizon Relay Station MHC – Soc 22:47
Verizon Relay Station MHC – Soc 22:47
Verizon Relay Station MHC – Soc 22:47
Whitesands Cable Landing Station – SoC 23:50
Whitesands Cable Landing Station– SoC 23:50
Whitesands Cable Landing Station– SoC 23:50
Sennen Cove Cable.
BT Sennen Cove – SoC 24:20
Possible Cable Routes from Porthcurno to Whitesands CLS.
Multiple MHC – SoC 26:04
Multiple MHC – SoC 26:04
Connect Sands UK-Spain Locked MHC 2 – SoC 33:25
Pentewan Locked MHC TAT-14 – SoC 36:58
Pentewan Locked MHC Close Up 2 TAT-14 – SoC 36:58
Cable & Wireless Fraddon Map – SoC 40:06
India Queens Virgin Media – SoC 40:40
India Queens Level 3 – SoC 40:40
GTN Black Cross – SoC 41:17
GTN Black Cross – SoC 41:27
Decommisioned TAT3 & TAT8 Cable Landing Station & Bunker Widmouth Bay
Widmouth Bay TAT3 TAT8 CLS – SoC 42:48
Widmouth Bay TAT3 TAT8 CLS – SoC 43:00
Widmouth Bay TAT3 TAT8 CLS Bunker – SoC 43:02
Apollo North CLS – SoC 44:23
Valley Truckle MHC – SoC 42:28
Valley Truckle MHC – SoC 42:30
Widmouth Bay TAT3 TAT8 CLS – SoC 42:45
Widmouth Bay TAT3 TAT8 CLS Bunker – SoC 42:49
Widmouth Bay TAT3 TAT8 CLS – SoC 42:56
Widmouth Bay MHC Locked – SoC 44:05
Apollo North CLS – SoC 45:30
Apollo North CLS – SoC 45-:39
Verizon Bude – SoC 46:01
Surf Telecom – SoC 47:12
Western Power Distribution & Serf Telecom.
Western Power Distribution & Serf Telecom.
Western Power Distribution & Serf Telecom.
Western Power Distribution & Serf Telecom.
Western Power Distribution & Serf Telecom.
Level 3 CLS Gate – SoC 47:39
GCHQ Sign – SoC 49:34
Hiberian Express Vacuum Cable Repeater – SoC 52:44
Cable Landing Station at Dumpton Gap.
Virgin Media at Southern Cemetery Manchester.
Virgin Media in Odd Down, Bath.
Virgin Media in Staple Hill, Bristol.
Virgin Media in Staple Hill, Bristol
Virgin Media Switching Centre Bradley Stoke, Bristol

SMBT Fenny Stratford Exchange / Bletchley (MK) – bRAS

Took a trip out to investigate our local bRAS building.

BT Wholesale has ten 20/21CN bRAS which are located at Birmingham, Bletchley (MK), Ealing, Edinburgh, Ilford, Kingston, Manchester, Reading, Sheffield, Faraday. If your ISP uses BT Wholesale for routing then you can be sure that all your traffic will have passed through one of the above bRAS locations.

There are a large number of network companies present at this site as indicated by the network chamber covers outside in the street.

My Mapped BT Exchanges ( work in progress )

My Mapped Eire Telecom Exchanges ( work in progress )

Virgin Media
Virgin Media
Norweb Communications  Ltd
Norweb Communications  Ltd
W-COM Internet
W-COM Internet
Vtesse Networks Ltd
Vtesse Networks Ltd
Energis Communications Limited
Atlantic Telecom
Atlantic Telecom
Ipsaris Ltd now Marconi
Ipsaris Ltd now Marconi
Ipsaris Ltd now Marconi
Fibrenet Global Ltd
Fibrenet Global Ltd
186k Ltd now Zayo
186k Ltd now Zayo
186k Ltd now Zayo
Telecential Communications Ltd now Comtel
Telecential Communications Ltd now Comtel
KCL KCOM Group Ltd
CATV
Vodafone
Vodafone