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British Telecommunications Limited

British Telecommunications Limited uses 10,706,306 IPv4 addresses in 9,792 ranges, and 25,019 IPv6 ranges, by the registry records IP Company reads.

bt.net·United Kingdom

10,706,306
IPv4 addresses
9,792
IPv4 ranges
25,019
IPv6 ranges
6
ASes it operates
30
countries

Who routes its space

The networks announcing its IPv4, by the addresses each announces.

  1. AS2856 British Telecommunications Limited10,185,014 · 95.13%
  2. AS5400 British Telecommunications Limited477,380 · 4.46%
  3. AS3300 British Telecommunications Limited9,368 · 0.09%
  4. AS5089 Virgin Media Limited272 · 0.00%
  5. AS56817 TMN SA256 · 0.00%
  6. AS212238 Datacamp Limited256 · 0.00%
  7. AS219105 AppFabric LLC256 · 0.00%
  8. AS3356 Level 3 Parent, LLC52 · 0.00%
  9. AS10796 Charter Communications Inc40 · 0.00%
  10. AS6389 AT&T Enterprises, LLC32 · 0.00%
  11. AS3758 SingNet16 · 0.00%
  12. AS7018 AT&T Enterprises, LLC16 · 0.00%

Where its space is

Its IPv4 that IP Geolocation places, by country. A /24 counts for the company using most of it.

top 12 of 30
  1. United Kingdom10,530,984 · 96.87%
  2. Sweden192,508 · 1.77%
  3. Germany53,442 · 0.49%
  4. The Netherlands22,427 · 0.21%
  5. Belgium13,354 · 0.12%
  6. United States12,056 · 0.11%
  7. France8,712 · 0.08%
  8. Czechia7,935 · 0.07%
  9. Spain7,132 · 0.07%
  10. Italy4,794 · 0.04%
  11. Switzerland2,794 · 0.03%
  12. Hungary2,192 · 0.02%

Networks it operates

The autonomous systems registered under its domain, by the IPv4 each announces anywhere.

ASNNAMETYPEREGISTEREDIPV4
AS2856British Telecommunications LimitedISPUnited Kingdom13,860,864
AS5400British Telecommunications LimitedISPUnited Kingdom713,728
AS3300British Telecommunications LimitedISPUnited Kingdom512,768
AS8472British Telecommunications LimitedISPUnited Kingdom0
AS12641British Telecommunications LimitedISPUnited Kingdom0
AS15410BT Limited Magyarorszagi FioktelepeISPHungary0

How its networks peer

Each network's peering policy, traffic, ratio and reach as its operator states them, with the internet exchanges and facilities it is at.

ASNPOLICYTRAFFICRATIOSCOPEEXCHANGESFACILITIES
AS2856Selective1-5TbpsMostly InboundRegional23
AS5400Restrictive1-5TbpsMostly InboundGlobal61141
AS3300Selective100-1000MbpsBalancedGlobal160

Internet exchanges

The internet exchanges its networks connect at, by the capacity of their ports there: 64 exchanges, 139 ports and 11.3 Tbps in all.

top 30 of 64
EXCHANGEWHEREPORTSCAPACITY
LINX LON1London, United Kingdom6800 Gbps
AMS-IXAmsterdam, The Netherlands2500 Gbps
Equinix AshburnAshburn, United States4320 Gbps
NYIIX New YorkNew York, United States4310 Gbps
DE-CIX FrankfurtFrankfurt, Germany3300 Gbps
LINX LON2London, United Kingdom3300 Gbps
Equinix MiamiMiami, United States4220 Gbps
Equinix SingaporeSingapore, Singapore4220 Gbps
Equinix DallasDallas, United States3220 Gbps
INEX LAN1Dublin, Ireland3220 Gbps
MIX-ITMilan, Italy3220 Gbps
Equinix ChicagoChicago, United States3210 Gbps
Equinix Hong KongHong Kong, Hong Kong3210 Gbps
Equinix WarsawWarsaw, Poland3210 Gbps
France-IX ParisParis, France3210 Gbps
HKIXHong Kong, Hong Kong3210 Gbps
IX.br (PTT.br) São PauloSão Paulo/SP, Brazil3210 Gbps
NIX1Oslo, Norway3210 Gbps
Netnod Copenhagen BLUE -- MTU9KMalmo / Copenhagen, Denmark3210 Gbps
Netnod Copenhagen GREEN -- MTU9KMalmo / Copenhagen, Denmark3210 Gbps
Netnod Stockholm BLUE -- MTU1500Stockholm, Sweden3210 Gbps
Netnod Stockholm GREEN -- MTU1500Stockholm, Sweden3210 Gbps
TorIXToronto, Canada3210 Gbps
VIXVienna, Austria3201 Gbps
BBIX OsakaOsaka, Japan2200 Gbps
BBIX TokyoTokyo, Japan2200 Gbps
BCIXBerlin, Germany2200 Gbps
CANIX MontrealMontreal, Canada2200 Gbps
DE-CIX DusseldorfDüsseldorf, Germany2200 Gbps
DE-CIX LisbonLisbon, Portugal2200 Gbps

Facilities

The datacenters and colocation sites its networks are in: 143 in 40 countries, the country with the most first.

first 50 of 143
FACILITYWHERE
Equinix DC1-DC15,DC21-DC22 - AshburnAshburn, United States
Digital Realty ATL14 - AtlantaAtlanta, United States
Equinix AT1 - AtlantaAtlanta, United States
Markley Group One Summer Street BostonBoston, United States
CoreSite - Chicago (CH1)Chicago, United States
Equinix CH1/CH2/CH4 - ChicagoChicago, United States
Digital Realty DFW (2323 Bryan St)Dallas, United States
Equinix DA6 - DallasDallas, United States
CoreSite - Denver (DE1)Denver, United States
CoreSite - Denver (DE2)Denver, United States
CoreSite - Los Angeles (LA1) One WilshireLos Angeles, United States
Equinix LA1 - Los AngelesLos Angeles, United States
Equinix MI1 - Miami, NOTAMiami, United States
Equinix MI2 - MiamiMiami, United States
Digital Realty NYC (111 8th Ave)New York, United States
Digital Realty NYC (60 Hudson)New York, United States
Equinix SV1/SV5/SV10 - Silicon Valley, San JoseSan Jose, United States
CoreSite - Santa Clara (SV4)Santa Clara, United States
Equinix SE2/SE3 - SeattleSeattle, United States
H5 Data Centers SeattleSeattle, United States
Equinix NY2/NY4/NY5/NY6 - New York, SecaucusSecaucus, United States
Netmagic Bangalore DC02Bangalore, India
STTGDC BLR1Bangalore, India
Nxtra Data Chennai DC 2Chennai, India
STTGDC CHN1Chennai, India
Sify Tidel-DC- ChennaiChennai, India
STTGDC HYD1Hyderabad, India
STTGDC KOL1Kolkata, India
Equinix MB2 - Mumbai (GPX Mumbai 2)Mumbai, India
STTGDC BOM2Mumbai, India
Sify Global Delivery Center (Hyderabad)Nanakaramguda, India
Equinix MU4 - Munich, DornachAschheim, Germany
NTT Berlin 1 Data Center (BER1)Berlin, Germany
Digital Realty Dusseldorf DUS1-3Düsseldorf, Germany
Equinix DU1 - DusseldorfDüsseldorf, Germany
Digital Realty Frankfurt FRA1-27Frankfurt, Germany
Equinix FR5 - Frankfurt, KleyerStrasseFrankfurt, Germany
EdgeConneX Munich (EDCMUC01)Munich, Germany
ETIX Lyon #1Lyon, France
Digital Realty Marseille MRS1/2/3/4Marseille, France
Digital Realty Paris PAR2Paris, France
Digital Realty Paris PAR5Paris, France
Equinix PA10 - Paris, Saint-DenisParis, France
Telehouse - Paris 2 (Voltaire - Léon Frot)Paris, France
UltraEdge Lyon-VenissieuxVénissieux, France
Digital Realty London LHR20London, United Kingdom
Digital Realty London LON1-3London, United Kingdom
Telehouse - London (Docklands North Two)London, United Kingdom
Telehouse - London (Docklands North)London, United Kingdom
Equinix LD4 - London, SloughSlough, United Kingdom

What the databases see

Addresses each address-keyed database holds in its IPv4, as a share of it, with the largest providers. A /24 counts for the company using most of it; counts overlap.

Speed tests

Speeds measured from its space in the last 90 days.

From M-Lab
50.2 Mbps
median download
22.8 Mbps
median upload
155,528
download tests
150,992
upload tests

Its address ranges

Its largest IPv4 ranges, then its IPv6 ones, as IP Company draws them, with the network announcing each.

first 100 of 34,811
RANGEIPV4ORIGIN
86.128.0.0-86.188.130.153,965,456AS2856
109.145.0.0-109.159.139.255953,344AS2856
81.150.239.31-81.159.255.255594,145AS2856
31.48.0.0-31.55.104.106485,483AS2856
147.148.0.0/14147.152.0.0/20266,240AS2856
217.42.0.0-217.45.4.239197,872AS2856
86.189.32.32-86.191.255.255188,384AS2856
5.80.0.0/15131,072AS2856
81.131.63.224-81.133.1.148115,125AS2856
81.140.156.112-81.142.1.25191,532AS2856
81.146.232.0-81.148.63.25588,064AS2856
81.128.251.223-81.129.255.25566,593AS2856
132.146.0.0/1665,536AS2856
51.14.0.0/1665,536AS2856
81.135.160.0-81.136.129.1057,611AS2856
81.139.179.88-81.140.134.18254,111AS2856
147.152.52.0-147.152.255.25552,224AS2856
81.145.243.192-81.146.159.25544,096AS2856
217.46.250.160-217.47.153.25540,800AS2856
81.135.0.0/1781.135.128.0/2036,864AS2856
213.122.17.16-213.122.160.9536,688AS2856
81.128.0.0-81.128.128.8732,856AS2856
62.5.0.0/1732,768AS5400
81.142.1.253-81.142.114.12928,805AS2856
217.46.28.0/22217.46.32.0/19217.46.64.0/1825,600AS2856
81.150.14.218-81.150.111.12824,743AS2856
217.39.170.88-217.40.10.11924,608AS2856
81.134.41.2-81.134.128.1522,286AS2856
213.122.191.0/24213.122.192.0/18213.123.0.0/2020,736AS2856
109.144.32.0/19109.144.64.0/19109.144.96.0/2020,480AS2856
217.39.32.0/19217.39.64.0/19217.39.96.0/2020,480AS2856
217.35.137.168-217.35.215.25520,056AS2856
62.7.95.192-62.7.173.25520,032AS2856
195.163.11.0-195.163.86.25519,456AS5400
81.139.61.187-81.139.137.18119,451AS2856
213.1.44.0-213.1.118.25519,200AS2856
81.148.117.103-81.148.191.25519,097AS2856
62.180.152.0/2162.180.160.0/1962.180.192.0/1918,432AS5400
213.15.130.0-213.15.199.25517,920AS5400
217.41.107.208-217.41.176.25517,712AS2856
213.1.140.0-213.1.208.8717,496AS2856
217.32.48.0/20217.32.64.0/19217.32.96.0/2016,384AS2856
217.45.32.0/19217.45.64.0/1916,384AS2856
217.47.192.0/1816,384AS2856
81.133.195.114-81.134.2.9616,111AS2856
109.144.129.112-109.144.191.25516,016AS2856
81.143.31.138-81.143.93.9615,831AS2856
217.36.123.245-217.36.183.25515,371AS2856
213.15.6.56-213.15.63.25514,792AS5400
217.34.14.138-217.34.70.20014,399AS2856
81.143.114.159-81.143.169.13914,061AS2856
81.148.215.192-81.149.14.6513,954AS2856
81.133.59.169-81.133.110.18113,069AS2856
81.130.16.0-81.130.66.2012,821AS2856
81.144.48.0-81.144.94.25512,032AS2856
213.123.82.0-213.123.128.14211,919AS2856
81.130.96.0-81.130.140.20411,469AS2856
213.120.0.0-213.120.44.2411,289AS2856
195.100.131.0-195.100.174.25511,264AS5400
31.55.212.0/2231.55.216.0/2131.55.224.0/1911,264AS2856
217.34.252.192-217.35.40.17611,249AS2856
81.149.107.95-81.149.150.11911,033AS2856
217.34.126.210-217.34.169.19110,990AS2856
217.41.178.0-217.41.219.25510,752AS2856
195.100.68.8-195.100.108.19110,424AS5400
217.35.220.0-217.36.4.4710,288AS2856
217.38.175.224-217.38.216.710,280AS2856
213.1.0.0/19213.1.32.0/2110,240AS2856
195.163.136.128-195.163.176.1510,128AS5400
62.6.255.156-62.7.36.1279,444AS2856
217.40.233.80-217.41.13.209,157AS2856
213.120.172.122-213.120.208.519,146AS2856
81.142.116.211-81.142.151.2488,998AS2856
195.163.188.232-195.163.223.2558,984AS5400
81.142.160.138-81.142.195.368,859AS2856
212.140.94.0-212.140.128.1438,848AS2856
81.143.169.141-81.143.203.1108,674AS2856
81.138.254.96-81.139.32.398,648AS2856
213.120.100.124-213.120.134.398,620AS2856
81.150.123.182-81.150.157.488,571AS2856
217.37.121.24-217.37.153.2078,376AS2856
109.159.159.128-109.159.192.478,368AS2856
81.138.41.155-81.138.74.598,353AS2856
81.134.159.192/2681.134.160.0/198,256AS2856
81.130.224.0/1981.131.0.0/2781.131.0.32/298,232AS2856
62.6.0.0/1962.6.32.0/298,200AS2856
217.38.240.0/20217.39.0.0/208,192AS2856
62.239.192.0/198,192AS2856
62.239.64.0/198,192AS2856
31.55.104.108-31.55.135.2558,084AS2856
81.138.160.128-81.138.191.2268,035AS2856
217.46.208.248-217.46.239.1767,865AS2856
195.100.225.96-195.100.255.2557,840AS5400
213.15.98.0-213.15.128.1277,808AS5400
195.184.130.0-195.184.159.2557,680
217.32.0.0-217.32.29.2557,680AS2856
81.143.254.246-81.144.28.657,500AS2856
81.133.30.97-81.133.59.1677,495AS2856
217.32.118.248-217.32.147.2557,432AS2856
194.75.103.112-194.75.132.637,376AS2856

Names it registers under

The holder names its registry records give, by the IPv4 under each.

  1. British Telecommunications Limited10,679,547 · 99.75%
  2. BT-Infonet, Internet Service Provider7,760 · 0.07%
  3. BT Germany6,416 · 0.06%
  4. British Telecommunications PLC2,320 · 0.02%
  5. BTMPLS2,048 · 0.02%
  6. SDN Germany2,048 · 0.02%
  7. BTTEL Network1,024 · 0.01%
  8. British Telecom1,024 · 0.01%
  9. BT Germany GmbH768 · 0.01%
  10. BT (Germany) GmbH & Co. oHG608 · 0.01%
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