Prefixes
2,144 · 59
IPv4 · IPv6
Network
AS4766
CarrierKorea Telecom
Korea Telecom announces 2,144 IPv4 prefixes (47.2M addresses) and 59 IPv6 prefixes from South Korea. 6% of them are covered by valid RPKI records.
Address space
47.2M
IPv4 addresses · 268.4M IPv6 /48s
RPKI
6% valid5 invalid · 2,059 without a record
Peering
Selective
14 exchanges · 8 facilities
Where it is
Details
Network
- Name
- Korea Telecom
- Holder
- AS Manager
- Type
- Cable/DSL/ISP
- Country
- South Korea
- Registry
- krnic.rdap.apnic.net
- Website
- kt.com/eng/main.jsp
- Traffic
- 20-50Tbps
- UsersCloudflare Radar's estimate of people who reach the internet through this network.
- About 24.1M
- Abuse contact
- hostmaster@nic.or.kr
Connectivity
Cloudflare Radar- UpstreamsNetworks this one buys transit from.
- Cogent CommunicationsVerizonArelionNTT Global IP NetworkGTT CommunicationsDeutsche TelekomLumen AS3356PCCW Global+5 more
- PeersNetworks it exchanges traffic with directly, without paying either way.
- 124
- CustomersNetworks that buy transit from it.
- 511
- AS-SETThe routing registry object that lists this network's customers, used to build route filters.
- AS-KORNET
Routing security
- ASPAAn RPKI record listing the only networks allowed to be its upstream providers, so routers can reject leaked or forged paths.
- Not published
- RPKI coverageShare of its announcements that a signed record (ROA) authorizes.
- 139 of 2,203 valid
- IncidentsPossible BGP hijacks (high-confidence detections) and route leaks involving this network in the last 30 days, from Cloudflare Radar.
- 2 hijacks by this network2 route leaks
Largest prefixes
IPv4
2,144- 59.0.0.0/11No ROA
- 121.128.0.0/11No ROA
- 121.160.0.0/11No ROA
- 125.128.0.0/11No ROA
- 14.64.0.0/12No ROA
- 14.80.0.0/12No ROA
- 59.0.0.0/12No ROA
- 59.16.0.0/12No ROA
- 112.160.0.0/12No ROA
- 112.176.0.0/12No ROA
- 115.0.0.0/12No ROA
- 118.32.0.0/12No ROA
- 118.48.0.0/12No ROA
- 119.192.0.0/12No ROA
- 119.208.0.0/12No ROA
- 121.128.0.0/12No ROA
- 121.144.0.0/12No ROA
- 121.160.0.0/12No ROA
- 121.176.0.0/12No ROA
- 125.128.0.0/12No ROA
- 125.144.0.0/12No ROA
- 169.208.0.0/12No ROA
- 175.224.0.0/12No ROA
- 175.240.0.0/12No ROA
IPv6
59- 2400::/20No ROA
- 2400:80::/25No ROA
- 2400:40::/26No ROA
- 2400:20::/27No ROA
- 2400:10::/28No ROA
- 2400:100::/28No ROA
- 2400:110::/28No ROA
- 2400:120::/28No ROA
- 2400:130::/28No ROA
- 2400:140::/28No ROA
- 2400:150::/28No ROA
- 2400:160::/28No ROA
Internet exchanges
- Equinix Palo Alto
Palo Alto100 Gbps - SIX SeattleSeattle100 Gbps
- NYIIX New YorkNew York100 Gbps
- Equinix Singapore
Singapore100 Gbps - Any2WestLos Angeles and Silicon Valley100 Gbps
- BBIX US-WestWest Coast100 Gbps
- NWAXPortland100 Gbps
- BBIX Tokyo
Tokyo20 Gbps - DE-CIX Frankfurt
Frankfurt10 Gbps - AMS-IX
Amsterdam10 Gbps - LINX LON1
London10 Gbps - JPIX TOKYOTokyo10 Gbps
- NL-ixAmsterdam, Rotterdam, Brussels, Luxembourg, Frankfurt, Düsseldorf, Berlin, Dublin, London, Copenhagen, Paris, Marseille10 Gbps
- Equinix Hong Kong
Hong Kong10 Gbps