ResearchRouting table, RPKI, IRR & looking glass

AS38731 Vietel - CHT Compamy Ltd

AS38731 (VTDC-AS-VN) is registered to Vietel - CHT Compamy Ltd in VN. It originates 122 prefixes in the global routing table.

111
IPv4 prefixes
11
IPv6 prefixes
41,728
IPv4 addresses
72%
RPKI valid
Registration

Who holds AS38731

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

AS number
AS38731
Handle
VTDC-AS-VN
Organization
Vietel - CHT Compamy Ltd
Country
VN
ASPA
None published
Routing

What AS38731 announces

Prefixes originated by AS38731 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
111
IPv6 prefixes
11
IPv4 addresses
41,728 (163 /24s)
RPKI valid
89 72%
RPKI invalid
0
RPKI not found
33
ROAs naming AS38731
15
With an IRR route object
50 40%
Prefixes

Announced prefixes

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

IPv4 (111)
27.71.16.0/2227.71.16.0/2327.71.19.0/2427.71.20.0/2327.71.20.0/2427.71.21.0/2427.71.22.0/2327.71.224.0/2227.71.224.0/2427.71.225.0/2427.71.226.0/2427.71.228.0/2227.71.228.0/2427.71.229.0/2427.71.231.0/2445.117.160.0/2345.117.161.0/2445.117.162.0/2445.117.163.0/24103.1.208.0/22103.1.211.0/24103.175.146.0/23115.84.176.0/22115.84.177.0/24115.84.179.0/24115.84.180.0/22116.97.184.0/24116.97.185.0/24116.97.186.0/24116.97.187.0/24116.97.189.0/24116.111.176.0/21116.111.180.0/22116.111.183.0/24117.1.149.0/24117.1.150.0/24125.212.192.0/22125.212.192.0/24125.212.193.0/24125.212.194.0/24125.212.195.0/24125.212.196.0/22125.212.196.0/24125.212.198.0/24125.212.200.0/22125.212.200.0/24125.212.204.0/22125.212.224.0/21125.212.224.0/24125.212.225.0/24125.212.226.0/24125.212.228.0/24125.212.229.0/24125.212.230.0/24125.212.231.0/24125.212.232.0/22125.212.236.0/22125.212.239.0/24171.226.8.0/23171.226.10.0/23171.226.10.0/24171.226.11.0/24171.226.12.0/24171.226.13.0/24171.226.14.0/24171.226.15.0/24171.237.176.0/23171.244.0.0/22171.244.4.0/22171.244.5.0/24171.244.8.0/22171.244.8.0/24171.244.9.0/24171.244.10.0/24171.244.11.0/24171.244.12.0/22171.244.12.0/24171.244.13.0/24171.244.14.0/24171.244.15.0/24171.244.48.0/22171.244.49.0/24171.244.51.0/24171.244.52.0/22171.244.53.0/24171.244.54.0/24171.244.56.0/22171.244.57.0/24171.244.59.0/24171.244.60.0/22171.244.60.0/24171.244.61.0/24171.244.62.0/23171.244.62.0/24171.244.63.0/24171.244.192.0/22171.244.195.0/24171.244.196.0/22171.244.197.0/24171.244.198.0/23210.211.96.0/21210.211.96.0/24210.211.99.0/24210.211.104.0/21210.211.104.0/22210.211.108.0/22210.211.112.0/21210.211.117.0/24210.211.120.0/22210.211.124.0/22210.211.127.0/24
IPv6 (11)
2401:5f80::/362401:5f80:6::/482401:5f80:1000::/362401:5f80:1004::/482401:5f80:2000::/352401:5f80:2000::/362401:5f80:3000::/362401:5f80:4000::/362401:5f80:5000::/362401:5f80:6000::/362406:4c40::/48

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS38731 is reached through

The AS just before AS38731 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.

AS7552 VIETEL-AS-AP 60
IRR

Routing registry objects

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

Sourceas-nameMaintained by
APNICVTDC-AS-VNMAINT-VN-VNNIC

Route objects with origin AS38731: APNIC 1,665 · RADB 87 · NTTCOM 67

as-sets that list AS38731 (14)
AS-10099AS-45903AS-7552AS-HGC-INTLAS-HURRICANEAS-KDDCUSTOMER2AS-REACH-CUSTOMERSAS-STORMWALL-SETAS-TELSTRA-INTL-CUSTOMERSAS-TELSTRA-INTL-CUSTOMERS-4637AS199746:AS-BLACKLISTAS204464:AS-BLACKLISTAS3491:AS-CUSTOMERS-APAS7643:AS-VIETNAM
Tools

Check AS38731 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup