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AS numbers

AS4455 BSO

AS4455 is operated by BSO and registered with RIPE NCC (GB) since 2014-01-27.

It announces 46 IPv4 and 15 IPv6 prefixes.

RIPE RIS sees 0 upstream and peer networks and 0 downstream networks next to it.

PeeringDB lists it as an NSP network at 34 internet exchanges and 127 facilities. Its peering policy is open.

NameBSO
Registry (RIR)RIPE NCC
CountryUnited Kingdom (GB)
Delegated on2014-01-27
Network typeNSP, Global
Peering policyOpen
IRR as-setRIPE::AS-BSO
Prefixes (IPv4 / IPv6)46 / 15
Upstreams and peers0
Downstream networks0
Websitebso.co

Routing health

  • Partial result: RIPEstat did not return the overview, neighbours, roas in time.
  • AS4455 announces 46 IPv4 and 15 IPv6 prefixes.

For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.

Announced prefixes 61

  • 8.29.192.0/21
  • 8.29.195.0/24
  • 8.29.199.0/24
  • 31.217.128.0/19
  • 31.217.129.0/24
  • 31.217.130.0/24
  • 31.217.131.0/24
  • 31.217.135.0/24
  • 46.18.168.0/21
  • 83.243.16.0/21
  • 89.30.0.0/17
  • 89.30.5.0/24
  • 89.30.13.0/24
  • 89.30.14.0/24
  • 89.30.21.0/24
  • 89.30.25.0/24
  • 89.30.26.0/24
  • 89.30.36.0/24
  • 89.30.48.0/24
  • 89.30.56.0/24
  • 89.30.57.0/24
  • 89.30.58.0/24
  • 89.30.66.0/24
  • 89.30.68.0/22
  • 89.30.68.0/24
  • 89.30.69.0/24
  • 89.30.79.0/24
  • 89.30.84.0/24
  • 89.30.87.0/24
  • 89.30.121.0/24
  • 91.196.184.0/22
  • 91.196.186.0/24
  • 91.196.187.0/24
  • 185.55.16.0/22
  • 185.55.16.0/24
  • 193.27.78.0/23
  • 193.218.12.0/22
  • 194.126.217.0/24
  • 195.49.140.0/22
  • 195.49.142.0/24
  • 206.41.72.0/21
  • 206.41.72.0/24
  • 208.48.160.0/21
  • 208.48.160.0/24
  • 208.48.165.0/24
  • 212.121.32.0/19
  • 2a01:8200:1::/48
  • 2a01:8200:1d::/48
  • 2a01:8200:1000::/40
  • 2a01:8200:2000::/35
  • 2a01:8200:2300::/48
  • 2a01:8200:2600::/48
  • 2a01:8200:4000::/35
  • 2a01:8200:4400::/48
  • 2a01:8200::/32
  • 2a02:27f0:2000::/35
  • 2a02:27f0:4000::/35
  • 2a02:27f0:4500::/40
  • 2a02:27f0::/32
  • 2001:67c:1254::/48
  • 2401:5180::/32

Peering

Peering policy: Open. Suggested max-prefix limits: 1,500 IPv4, 1,000 IPv6. PeeringDB record

Internet exchanges 34
ExchangePortsSpeedRoute server
AMS-IX110GYes
Any2West110GYes
BNIX12GYes
ChIX110GYes
DE-CIX Dallas: DE-CIX Dallas Peering LAN110GYes
DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN1100GYes
DE-CIX Madrid: DE-CIX Madrid Peering LAN11GYes
DE-CIX New York: DE-CIX New York Peering LAN110GYes
Digital Realty New York11GYes
Equinix Ashburn11GYes
Equinix Hong Kong11GYes
Equinix San Jose110GYes
Equinix Singapore11GYes
Equinix Tokyo11GYes
Equinix Warsaw11GYes
ESpanix Madrid Lower LAN110GYes
France-IX Paris110GYes
INEX LAN1: INEX LAN114GYes
IXLeeds110GYes
LINX LON1: Main120GYes
LINX LON215GYes
LINX Manchester12GYes
LINX NoVA12GYes
LONAP: LON0110GYes
MIX-IT110GYes
Netnod Stockholm BLUE -- MTU1500: STH-B -- MTU150011GYes
Netnod Stockholm GREEN -- MTU1500: STH-A -- MTU150011GYes
NIX.CZ: Public peering VLAN110GYes
NL-ix: Main10MNo
NYIIX New York110GYes
SIX Seattle: MTU 150011GYes
SwissIX: Peering110GYes
TorIX110GYes
UAE-IX: UAE-IX Peering LAN11GYes
Facilities 127
FacilityCityCountry
165 Halsey Meet-Me RoomNewarkUS
800 south hopeLos AngelesUS
aql DC2LeedsGB
ARO DC2 Kilby House (AIMES)LiverpoolGB
AT TOKYO (CC1/CC2)TokyoJP
CarrierColo Berlin Luetzow (I/P/B/ site B)BerlinDE
CE Colo PraguePragueCZ
Cologix MTL11MontrealCA
Cologix MTL3MontrealCA
Cologix SV1Santa ClaraUS
Cologix TOR1TorontoCA
CoreSite - Denver (DE1)DenverUS
CoreSite - Los Angeles (LA1) One WilshireLos AngelesUS
CoreSite - New York (NY1)New YorkUS
CyrusOne PhoenixPhoenixUS
DataBank New York (LGA2)New YorkUS
datamena DXA - DubaiDubaiAE
Digital Realty AMS17 - AmsterdamAmsterdamNL
Digital Realty AMS18 - AmsterdamAmsterdamNL
Digital Realty AMS3/5/7/8/10 - AmsterdamAmsterdamNL
Digital Realty AMS9 - AmsterdamAmsterdamNL
Digital Realty ATL13 - AtlantaAtlantaUS
Digital Realty BRU1 - BrusselsBrusselsBE
Digital Realty CHI (350 E Cermak)ChicagoUS
Digital Realty Dublin DUB1-2DublinIE
Digital Realty Frankfurt FRA1-27FrankfurtDE
Digital Realty London LHR19LondonGB
Digital Realty London LHR20LondonGB
Digital Realty London LHR21 (closed)LondonGB
Digital Realty London LON1-3LondonGB
Digital Realty Madrid MAD1-2MadridES
Digital Realty Marseille MRS1/2/3/4MarseilleFR
Digital Realty NYC (111 8th Ave)New YorkUS
Digital Realty NYC (60 Hudson)New YorkUS
Digital Realty Paris PAR1ParisFR
Digital Realty Paris PAR2ParisFR
Digital Realty PHX15 (2121 S Price Rd)ChandlerUS
Digital Realty Seattle SEA10SeattleUS
Digital Realty SFO (200 Paul)San FranciscoUS
Digital Realty SFO (365 Main)San FranciscoUS
Digital Realty VIE1/2 - ViennaViennaAT
Element Critical Austin AUS1AustinUS
Equinix AM1/AM2 - Amsterdam, LuttenbergwegAmsterdamNL
Equinix AM3 - Amsterdam, Science ParkAmsterdamNL
Equinix AM5 - Amsterdam, SchepenbergwegAmsterdamNL
Equinix AM7 - Amsterdam, KuiperberwegAmsterdamNL
Equinix BA1 - BarcelonaBarcelonaES
Equinix CH1/CH2/CH4 - ChicagoChicagoUS
Equinix DB3 - Dublin, BallycoolinDublinIE
Equinix DB4 - Dublin, BallycoolinDublinIE
Equinix DC1-DC15,DC21-DC22 - AshburnAshburnUS
Equinix DX1 - DubaiDubaiAE
Equinix DX2 - DubaiDubaiAE
Equinix FR2 - Frankfurt, NorthFrankfurtDE
Equinix FR4 - Frankfurt, WestFrankfurtDE
Equinix FR5 - Frankfurt, KleyerStrasseFrankfurtDE
Equinix FR7 - Frankfurt, GutleutstrasseFrankfurtDE
Equinix GV1 - Geneva, CityGenevaCH
Equinix HK1 - Hong KongTsuen WanHK
Equinix LA1 - Los AngelesLos AngelesUS
Equinix LD3 - London, Park RoyalLondonGB
Equinix LD4 - London, SloughSloughGB
Equinix LD5 - London, SloughSloughGB
Equinix LD8 - London, DocklandsLondonGB
Equinix LD9 - London, PowergateLondonGB
Equinix MA1 - Manchester, Williams/KilburnManchesterGB
Equinix MA3 - Manchester, Joule HouseManchesterGB
Equinix MA4 - Manchester, Synergy HouseManchesterGB
Equinix MI1 - Miami, NOTAMiamiUS
Equinix NY2/NY4/NY5/NY6 - New York, SecaucusSecaucusUS
Equinix NY9 - New York, 111 8th AvenueNew YorkUS
Equinix PA2 - Paris, Saint-DenisParisFR
Equinix PA3 - Paris, Saint-DenisParisFR
Equinix SE2/SE3 - SeattleSeattleUS
Equinix SG1 - SingaporeSingaporeSG
Equinix SG3 - SingaporeSingaporeSG
Equinix SK1 - Stockholm, BrommaStockholmSE
Equinix SV1/SV5/SV10 - Silicon Valley, San JoseSan JoseUS
Equinix SV8 - Silicon Valley, Palo AltoPalo AltoUS
Equinix TR1 - TorontoTorontoCA
Equinix TR2 - TorontoTorontoCA
Equinix TR4 - Toronto (formerly Q9 Toronto 2/3/4)TorontoCA
Equinix TY2 - TokyoTokyoJP
Equinix TY3 - TokyoTokyoJP
Equinix WA1 - Warsaw, Centrum LIMWarsawPL
Equinix WA2 - WarsawWarsawPL
Equinix ZH4 - ZurichZurichCH
Equinix ZH5 - Zurich, SouthZurichCH
eStruxture CAL-1CalgaryCA
eStruxture MTL-1MontrealCA
ETIX Lille #1TourcoingFR
ETIX Paris #3Vélizy-VillacoublayFR
EvoSwitch WDC1ManassasUS
Flexential - Denver/Aurora (DEN03)AuroraUS
Flexential - Portland/Hillsboro 2 (PDX02)HillsboroUS
Global Switch AmsterdamAmsterdamNL
Global Switch London EastLondonGB
Global Switch London NorthLondonGB
Hurricane Electric Fremont 2FremontUS
Iron Mountain Data Center - Amsterdam (AMS-1)AmsterdamNL
Iron Mountain Data Center - Phoenix (AZP-1)PhoenixUS
ITENOS Frankfurt (FRA1)FrankfurtDE
Level(3) London (Goswell Road)LondonGB
London Hosting CentreLondonGB
LuxConnect DC1.1 - BettembourgBettembourgLU
LuxConnect DC2 - BissenBissenLU
MEGA-i (iAdvantage Hong Kong)Hong KongHK
MIX DC CALDERAMilanIT
NewTelco FrankfurtFrankfurtDE
NIKHEF AmsterdamAmsterdamNL
NTT DOCOMO BUSINESS TK1 - Tokyo (NTT Otemachi)TokyoJP
NTT Frankfurt 1 Data Center (FRA1)FrankfurtDE
Otemachi Place West Tower (BBTower Shin-Otemachi)TokyoJP
Pulsant Edinburgh SC-1 (South Gyle)EdinburghGB
RagingWire CA1 - NTTSacramentoUS
RagingWire VA1 - NTTAshburnUS
Retelit Avalon 1MilanIT
Stellium 1NewcastleGB
Switch Las VegasLas VegasUS
Teledata Manchester - Delta HouseManchesterGB
Telehouse - London (Docklands East)LondonGB
Telehouse - London (Docklands North)LondonGB
Telehouse - London (Docklands West)LondonGB
Telehouse - Paris 2 (Voltaire - Léon Frot)ParisFR
Vaultica Data Centers | MIL01SizianoIT
VoltaLondonGB
Volta ManchesterManchesterGB

More about AS4455

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-12 16:30 UTC. The country is where the AS number was registered, not necessarily where the network operates.