ResearchRouting table, RPKI, IRR & looking glass

AS38841 kbro CO. Ltd.

AS38841 (kbro-AS-TW) is registered to kbro CO. Ltd. in TW. It originates 481 prefixes in the global routing table.

443
IPv4 prefixes
38
IPv6 prefixes
596,224
IPv4 addresses
100%
RPKI valid
Registration

Who holds AS38841

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

AS number
AS38841
Handle
kbro-AS-TW
Organization
kbro CO. Ltd.
Country
TW
ASPA
None published
Routing

What AS38841 announces

Prefixes originated by AS38841 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
443
IPv6 prefixes
38
IPv4 addresses
596,224 (2,329 /24s)
RPKI valid
481 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS38841
793
With an IRR route object
281 58%
Prefixes

Announced prefixes

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

IPv4 (443)
45.64.28.0/2245.64.28.0/2345.64.28.0/2445.64.29.0/2445.64.30.0/23103.224.192.0/22103.224.192.0/23103.224.194.0/23103.224.194.0/24103.224.195.0/24106.1.0.0/16106.1.0.0/17106.1.32.0/21106.1.44.0/22106.1.48.0/23106.1.50.0/23106.1.52.0/22106.1.56.0/23106.1.58.0/23106.1.64.0/23106.1.66.0/23106.1.68.0/22106.1.88.0/22106.1.92.0/22106.1.98.0/24106.1.100.0/22106.1.104.0/23106.1.106.0/23106.1.108.0/23106.1.110.0/23106.1.112.0/22106.1.124.0/22106.1.128.0/17106.1.128.0/22106.1.136.0/23106.1.140.0/24106.1.144.0/22106.1.148.0/23106.1.150.0/24106.1.151.0/24106.1.152.0/21106.1.160.0/22106.1.164.0/24106.1.165.0/24106.1.166.0/24106.1.167.0/24106.1.170.0/24106.1.172.0/22106.1.176.0/22106.1.180.0/22106.1.184.0/21106.1.192.0/22106.1.196.0/22106.1.200.0/22106.1.208.0/21106.1.220.0/24106.1.221.0/24106.1.222.0/24106.1.223.0/24106.1.224.0/22106.1.228.0/22106.1.232.0/22106.1.236.0/23106.1.238.0/23106.1.240.0/22106.1.244.0/22106.1.252.0/24118.232.0.0/15118.232.0.0/16118.232.8.0/22118.232.44.0/22118.232.48.0/21118.232.56.0/22118.232.60.0/22118.232.68.0/22118.232.72.0/22118.232.76.0/24118.232.77.0/24118.232.78.0/24118.232.80.0/22118.232.84.0/22118.232.88.0/21118.232.96.0/22118.232.100.0/22118.232.104.0/22118.232.108.0/22118.232.112.0/22118.232.116.0/22118.232.120.0/22118.232.124.0/22118.232.128.0/21118.232.136.0/21118.232.144.0/21118.232.152.0/21118.232.160.0/21118.232.168.0/21118.232.176.0/21118.232.184.0/21118.232.192.0/22118.232.196.0/23118.232.198.0/24118.232.199.0/24118.232.200.0/21118.232.208.0/21118.232.216.0/22118.232.220.0/22118.232.224.0/21118.232.232.0/21118.232.244.0/22118.232.248.0/22118.232.252.0/22118.233.0.0/16118.233.0.0/22118.233.4.0/22118.233.8.0/21118.233.16.0/21118.233.32.0/22118.233.36.0/22118.233.40.0/22118.233.44.0/23
Show 323 more
118.233.46.0/23118.233.48.0/23118.233.50.0/23118.233.56.0/22118.233.60.0/22118.233.64.0/21118.233.72.0/21118.233.72.0/24118.233.73.0/24118.233.74.0/24118.233.75.0/24118.233.76.0/24118.233.77.0/24118.233.78.0/24118.233.79.0/24118.233.80.0/21118.233.81.0/24118.233.88.0/21118.233.96.0/22118.233.100.0/22118.233.104.0/22118.233.108.0/22118.233.112.0/22118.233.116.0/23118.233.117.0/24118.233.118.0/23118.233.120.0/23118.233.122.0/23118.233.128.0/21118.233.136.0/22118.233.144.0/21118.233.152.0/21118.233.168.0/21118.233.176.0/21118.233.192.0/22118.233.196.0/22118.233.200.0/21118.233.208.0/23118.233.210.0/24118.233.216.0/22118.233.224.0/22118.233.228.0/23118.233.230.0/23118.233.232.0/22118.233.232.0/23118.233.234.0/23118.233.245.0/24118.233.246.0/23118.233.248.0/22118.233.252.0/22123.192.0.0/14123.192.0.0/15123.192.0.0/20123.192.16.0/21123.192.24.0/21123.192.32.0/21123.192.40.0/21123.192.48.0/21123.192.56.0/21123.192.64.0/21123.192.72.0/21123.192.76.0/22123.192.80.0/22123.192.84.0/22123.192.88.0/22123.192.92.0/22123.192.96.0/21123.192.104.0/22123.192.108.0/22123.192.112.0/22123.192.116.0/22123.192.120.0/21123.192.128.0/21123.192.136.0/21123.192.144.0/23123.192.146.0/23123.192.148.0/22123.192.152.0/22123.192.156.0/22123.192.160.0/22123.192.164.0/22123.192.168.0/22123.192.176.0/22123.192.180.0/22123.192.184.0/22123.192.192.0/22123.192.196.0/22123.192.200.0/22123.192.204.0/22123.192.208.0/21123.192.216.0/22123.192.220.0/22123.192.224.0/22123.192.228.0/22123.192.232.0/22123.192.236.0/22123.192.240.0/22123.192.248.0/23123.192.250.0/23123.192.252.0/22123.193.0.0/21123.193.8.0/21123.193.16.0/21123.193.24.0/21123.193.32.0/21123.193.40.0/21123.193.48.0/21123.193.64.0/21123.193.80.0/21123.193.88.0/21123.193.96.0/21123.193.96.0/22123.193.104.0/23123.193.106.0/24123.193.107.0/24123.193.108.0/24123.193.109.0/24123.193.110.0/24123.193.111.0/24123.193.112.0/21123.193.120.0/22123.193.124.0/24123.193.125.0/24123.193.126.0/23123.193.128.0/22123.193.136.0/22123.193.140.0/22123.193.144.0/21123.193.152.0/21123.193.160.0/22123.193.168.0/22123.193.176.0/22123.193.184.0/21123.193.192.0/22123.193.196.0/22123.193.200.0/21123.193.212.0/22123.193.216.0/23123.193.218.0/24123.193.219.0/24123.193.220.0/24123.193.221.0/24123.193.222.0/24123.193.223.0/24123.193.224.0/21123.193.232.0/22123.193.236.0/22123.193.240.0/22123.193.244.0/23123.193.246.0/24123.193.247.0/24123.193.248.0/22123.193.252.0/22123.194.0.0/15123.194.0.0/22123.194.4.0/22123.194.12.0/22123.194.16.0/22123.194.24.0/22123.194.28.0/22123.194.32.0/21123.194.40.0/22123.194.48.0/21123.194.56.0/21123.194.72.0/23123.194.74.0/24123.194.75.0/24123.194.76.0/22123.194.80.0/21123.194.84.0/22123.194.96.0/21123.194.112.0/21123.194.120.0/22123.194.124.0/23123.194.125.0/24123.194.126.0/24123.194.127.0/24123.194.128.0/22123.194.136.0/21123.194.144.0/22123.194.148.0/22123.194.152.0/22123.194.156.0/22123.194.160.0/22123.194.164.0/22123.194.168.0/22123.194.176.0/22123.194.180.0/22123.194.184.0/22123.194.188.0/22123.194.200.0/21123.194.232.0/22123.194.236.0/22123.194.240.0/21123.194.253.0/24123.194.254.0/24123.195.0.0/22123.195.8.0/22123.195.8.0/24123.195.9.0/24123.195.12.0/22123.195.16.0/22123.195.20.0/22123.195.28.0/22123.195.32.0/22123.195.36.0/22123.195.40.0/22123.195.44.0/22123.195.48.0/23123.195.50.0/23123.195.52.0/22123.195.56.0/21123.195.76.0/22123.195.128.0/22123.195.132.0/22123.195.136.0/21123.195.144.0/22123.195.148.0/22123.195.152.0/21123.195.160.0/22123.195.172.0/22123.195.174.0/23123.195.176.0/22123.195.180.0/22123.195.182.0/23123.195.184.0/22123.195.188.0/22123.195.192.0/22123.195.196.0/22123.195.200.0/22123.195.204.0/22123.195.208.0/21123.195.216.0/21123.195.224.0/21123.195.232.0/22123.195.236.0/24123.195.237.0/24123.195.238.0/24180.176.0.0/15180.176.0.0/16180.176.32.0/21180.176.40.0/21180.176.48.0/22180.176.52.0/22180.176.56.0/21180.176.64.0/22180.176.68.0/22180.176.72.0/22180.176.76.0/22180.176.80.0/21180.176.84.0/22180.176.88.0/22180.176.92.0/22180.176.96.0/21180.176.104.0/21180.176.128.0/21180.176.144.0/21180.176.152.0/22180.176.156.0/23180.176.158.0/23180.176.188.0/22180.176.192.0/21180.176.200.0/21180.176.208.0/21180.176.216.0/21180.176.224.0/22180.176.228.0/22180.176.232.0/21180.176.240.0/22180.177.0.0/16180.177.0.0/22180.177.4.0/23180.177.8.0/22180.177.12.0/22180.177.16.0/21180.177.24.0/22180.177.28.0/22180.177.32.0/22180.177.36.0/22180.177.40.0/22180.177.44.0/23180.177.46.0/23180.177.52.0/22180.177.56.0/22180.177.64.0/21180.177.70.0/23180.177.72.0/21180.177.80.0/21180.177.88.0/21180.177.104.0/22180.177.128.0/22180.177.132.0/22180.177.136.0/22180.177.140.0/22180.177.144.0/21180.177.176.0/21180.177.184.0/21180.177.192.0/21180.177.200.0/21180.177.200.0/22180.177.208.0/21180.177.216.0/21180.177.223.0/24180.177.224.0/22180.177.228.0/22180.177.232.0/21180.177.244.0/22180.177.248.0/22203.77.71.0/24211.76.112.0/20211.76.112.0/21211.76.112.0/24211.76.114.0/24211.76.115.0/24211.76.116.0/24211.76.117.0/24211.76.118.0/24211.76.119.0/24211.76.120.0/21211.76.120.0/24211.76.125.0/24211.76.126.0/24211.76.127.0/24
IPv6 (38)
2407:4d00::/322407:4d00::/482407:4d00:1000::/362407:4d00:2000::/362407:4d00:3000::/362407:4d00:4000::/362407:4d00:5000::/362407:4d00:6000::/362407:4d00:7000::/362407:4d00:8000::/362407:4d00:9000::/362407:4d00:a000::/362407:4d00:b000::/362407:4d00:c000::/362407:4d00:fd01::/482407:4d00:fd02::/482407:4d00:fd03::/482407:4d00:fd04::/482407:4d00:fd05::/482407:4d00:fd06::/482407:4d00:fd07::/482407:4d00:fd08::/482407:4d00:fd09::/482407:4d00:fd0a::/482407:4d00:fd0b::/482407:4d00:fd0c::/482407:4d00:ff01::/482407:4d00:ff02::/482407:4d00:ff03::/482407:4d00:ff04::/482407:4d00:ff05::/482407:4d00:ff06::/482407:4d00:ff07::/482407:4d00:ff08::/482407:4d00:ff09::/482407:4d00:ff0a::/482407:4d00:ff0b::/482407:4d00:ff0c::/48

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS38841 is reached through

The AS just before AS38841 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.

AS9924 TFN-TW 59AS6939 HURRICANE 39
IRR

Routing registry objects

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

Sourceas-nameMaintained by
APNICkbro-AS-TWMAINT-TW-TWNIC

Route objects with origin AS38841: NTTCOM 721 · RADB 716

as-sets that list AS38841 (22)
AS-63529-AS-IMPORT-AS9505AS-CHIEF-TRANSITAS-CHIEF-TRANSIT-2002AS-EBIX-TRANSITAS-HURRICANEAS-RETN-ACTUAL-V4AS-RETN-ACTUAL-V6AS-SEEDNETAS-TFN-TRANSIT1AS-TPIX-58453AS-TRANSROUTE-SPECAS-TWIGAS199746:AS-BLACKLISTAS204464:AS-BLACKLISTAS207468:AS-TWAS216458:AS-CUST-AGG-HKAS3491:AS-CUSTOMERS-APAS3491:AS-CUSTOMERS-NAAS58453:AS-ASIAASCUSTAS58453:AS-ASIATESTAS58453:AS-ASIATEST2AS63529:AS-63529-AS-IMPORT-AS9505
Tools

Check AS38841 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup