ResearchRouting table, RPKI, IRR & looking glass

AS7203 Leaseweb USA, Inc.

AS7203 (LEASEWEB-USA-SFO) is registered to Leaseweb USA, Inc. in US. It originates 162 prefixes in the global routing table.

149
IPv4 prefixes
13
IPv6 prefixes
182,528
IPv4 addresses
99%
RPKI valid

Who holds AS7203

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

AS number
AS7203
Handle
LEASEWEB-USA-SFO
Organization
Leaseweb USA, Inc.
Country
US
ASPA
None published

What AS7203 announces

Prefixes originated by AS7203 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
149
IPv6 prefixes
13
IPv4 addresses
182,528 (713 /24s)
RPKI valid
161 99%
RPKI invalid
0
RPKI not found
1
ROAs naming AS7203
170
With an IRR route object
162 100%

Announced prefixes

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

IPv4 (149)
23.19.88.0/2123.19.164.0/2223.19.198.0/2423.19.212.0/2223.19.252.0/2223.81.8.0/2223.81.12.0/2223.81.84.0/2223.81.96.0/2223.81.100.0/2223.81.104.0/2123.81.112.0/2223.81.116.0/2223.81.160.0/2223.81.164.0/2223.81.168.0/2223.81.176.0/2123.81.200.0/2223.81.220.0/2223.82.0.0/2123.82.16.0/2123.82.24.0/2223.82.28.0/2223.82.48.0/2223.82.56.0/2223.82.64.0/2123.82.88.0/2223.82.92.0/2223.82.96.0/2223.82.100.0/2223.82.112.0/2223.82.116.0/2223.82.124.0/2223.82.132.0/2223.82.168.0/2123.82.176.0/2223.82.180.0/2223.82.236.0/2223.83.152.0/2223.83.156.0/2223.83.160.0/2223.83.164.0/2223.83.176.0/2223.83.180.0/2223.105.16.0/2123.105.24.0/2123.105.96.0/2123.105.104.0/2223.105.108.0/2223.105.112.0/2123.105.120.0/2223.105.124.0/2223.106.44.0/2223.106.88.0/2123.106.160.0/2123.106.168.0/2123.106.184.0/2123.108.108.0/2223.108.112.0/2123.108.120.0/2223.108.160.0/2023.108.176.0/2223.108.180.0/2223.108.184.0/2123.108.192.0/2123.108.204.0/2264.64.20.0/2264.64.24.0/2172.37.224.0/2184.75.144.0/24108.62.160.0/22108.62.244.0/23108.177.160.0/21142.91.24.0/22142.91.28.0/22142.91.36.0/22142.91.136.0/21142.91.168.0/22142.91.172.0/22142.91.212.0/22142.234.8.0/22142.234.12.0/22142.234.48.0/22142.234.52.0/22142.234.56.0/22142.234.80.0/22142.234.84.0/22142.234.96.0/22142.234.100.0/22142.234.120.0/21142.234.128.0/22142.234.132.0/22142.234.144.0/22142.234.148.0/22142.234.192.0/21147.255.16.0/22147.255.20.0/22147.255.48.0/21147.255.56.0/22147.255.60.0/22147.255.112.0/22147.255.120.0/22147.255.124.0/22147.255.160.0/22147.255.164.0/22147.255.176.0/21147.255.184.0/22147.255.188.0/22152.163.8.0/22152.163.28.0/22152.163.52.0/22152.163.128.0/22152.163.156.0/22152.163.180.0/22152.163.204.0/22152.163.232.0/22172.241.8.0/22172.241.12.0/22172.241.56.0/22172.241.60.0/22
Show 29 more
IPv6 (13)

RPKI valid   RPKI invalid   no ROA covers it

Who AS7203 is reached through

The AS just before AS7203 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.

Routing registry objects

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

Route objects with origin AS7203: ARIN 149 · RADB 146 · RIPE 26 · ALTDB 1

as-sets that list AS7203 (4)