ResearchRouting table, RPKI, IRR & looking glass

AS37121 Eskom Holdings SOC Ltd

AS37121 is registered to Eskom Holdings SOC Ltd in ZA. It originates 221 prefixes in the global routing table.

221
IPv4 prefixes
0
IPv6 prefixes
65,536
IPv4 addresses
100%
RPKI valid
Registration

Who holds AS37121

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS37121
Handle
Eskom Holdings SOC Ltd
Organization
Eskom Holdings SOC Ltd
Country
ZA
ASPA
None published
Routing

What AS37121 announces

Prefixes originated by AS37121 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
221
IPv6 prefixes
0
IPv4 addresses
65,536 (256 /24s)
RPKI valid
221 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS37121
1
With an IRR route object
4 1%
Prefixes

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (221)
147.110.0.0/16147.110.0.0/17147.110.0.0/24147.110.1.0/24147.110.2.0/24147.110.3.0/24147.110.5.0/24147.110.6.0/24147.110.7.0/24147.110.8.0/24147.110.9.0/24147.110.10.0/24147.110.11.0/24147.110.12.0/24147.110.14.0/24147.110.15.0/24147.110.18.0/24147.110.21.0/24147.110.22.0/24147.110.23.0/24147.110.25.0/24147.110.26.0/24147.110.27.0/24147.110.28.0/24147.110.29.0/24147.110.30.0/24147.110.31.0/24147.110.33.0/24147.110.34.0/24147.110.35.0/24147.110.36.0/24147.110.38.0/24147.110.39.0/24147.110.40.0/24147.110.41.0/24147.110.43.0/24147.110.45.0/24147.110.47.0/24147.110.53.0/24147.110.54.0/24147.110.55.0/24147.110.57.0/24147.110.58.0/24147.110.60.0/24147.110.63.0/24147.110.65.0/24147.110.67.0/24147.110.68.0/24147.110.70.0/24147.110.71.0/24147.110.72.0/24147.110.73.0/24147.110.74.0/24147.110.75.0/24147.110.76.0/24147.110.77.0/24147.110.78.0/24147.110.79.0/24147.110.80.0/24147.110.81.0/24147.110.82.0/24147.110.83.0/24147.110.84.0/24147.110.85.0/24147.110.86.0/24147.110.87.0/24147.110.88.0/24147.110.89.0/24147.110.90.0/24147.110.91.0/24147.110.93.0/24147.110.94.0/24147.110.95.0/24147.110.96.0/24147.110.97.0/24147.110.98.0/24147.110.99.0/24147.110.100.0/24147.110.101.0/24147.110.102.0/24147.110.103.0/24147.110.104.0/24147.110.105.0/24147.110.107.0/24147.110.108.0/24147.110.109.0/24147.110.110.0/24147.110.111.0/24147.110.113.0/24147.110.114.0/24147.110.115.0/24147.110.116.0/24147.110.117.0/24147.110.118.0/24147.110.119.0/24147.110.120.0/24147.110.121.0/24147.110.122.0/24147.110.123.0/24147.110.124.0/24147.110.125.0/24147.110.126.0/24147.110.127.0/24147.110.128.0/17147.110.128.0/24147.110.129.0/24147.110.130.0/24147.110.131.0/24147.110.132.0/24147.110.133.0/24147.110.134.0/24147.110.135.0/24147.110.136.0/24147.110.137.0/24147.110.138.0/24147.110.139.0/24147.110.140.0/24147.110.141.0/24147.110.142.0/24147.110.143.0/24
Show 101 more
147.110.144.0/24147.110.145.0/24147.110.146.0/24147.110.147.0/24147.110.148.0/24147.110.149.0/24147.110.151.0/24147.110.152.0/24147.110.153.0/24147.110.154.0/24147.110.155.0/24147.110.156.0/24147.110.157.0/24147.110.158.0/24147.110.159.0/24147.110.160.0/24147.110.161.0/24147.110.162.0/24147.110.163.0/24147.110.164.0/24147.110.165.0/24147.110.167.0/24147.110.168.0/24147.110.169.0/24147.110.170.0/24147.110.171.0/24147.110.172.0/24147.110.173.0/24147.110.174.0/24147.110.175.0/24147.110.176.0/24147.110.177.0/24147.110.178.0/24147.110.179.0/24147.110.180.0/24147.110.181.0/24147.110.182.0/24147.110.183.0/24147.110.184.0/24147.110.185.0/24147.110.186.0/24147.110.187.0/24147.110.188.0/24147.110.189.0/24147.110.190.0/24147.110.191.0/24147.110.193.0/24147.110.196.0/24147.110.197.0/24147.110.198.0/24147.110.201.0/24147.110.203.0/24147.110.204.0/24147.110.205.0/24147.110.206.0/24147.110.207.0/24147.110.208.0/24147.110.209.0/24147.110.210.0/24147.110.211.0/24147.110.212.0/24147.110.213.0/24147.110.214.0/24147.110.215.0/24147.110.216.0/24147.110.217.0/24147.110.218.0/24147.110.219.0/24147.110.220.0/24147.110.221.0/24147.110.222.0/24147.110.223.0/24147.110.224.0/24147.110.225.0/24147.110.226.0/24147.110.227.0/24147.110.228.0/24147.110.229.0/24147.110.230.0/24147.110.232.0/24147.110.233.0/24147.110.234.0/24147.110.235.0/24147.110.236.0/24147.110.237.0/24147.110.238.0/24147.110.239.0/24147.110.240.0/24147.110.241.0/24147.110.242.0/24147.110.243.0/24147.110.244.0/24147.110.245.0/24147.110.246.0/24147.110.247.0/24147.110.248.0/24147.110.249.0/24147.110.250.0/24147.110.252.0/24147.110.253.0/24147.110.254.0/24

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS37121 is reached through

The AS just before AS37121 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS30844 LIQUID-AS 60
IRR

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
AFRINICESKOM-HOLDINGS-SOC-LTDAFRINIC-HM-MNT

Route objects with origin AS37121: RADB 42

as-sets that list AS37121 (16)
AS-36937:AS-PEERSAS-HURRICANEAS-ITXBR1AS-KDDCUSTOMER2AS-LIQUIDAS-LIQUID-EXTAS-MTN-TRANSITAS-MTNNSAS-MTNNS-TRANSITAS-REACH-CUSTOMERSAS-TELSTRA-INTL-CUSTOMERSAS-TH-IX-AS13335AS-TRANSROUTE-SPECAS-VB-TRANSITAS13335:AS-CUSTOMERSAS37271:AS-PEERS:AS36937
Tools

Check AS37121 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup