Skip to content
thenetworkery

AS numbers

AS12637 Seeweb

AS12637 is operated by Seeweb and registered with RIPE NCC (IT) since 1999-09-07.

It announces 33 IPv4 and 10 IPv6 prefixes, 97% of them RPKI valid.

RIPE RIS sees 63 upstream and peer networks and 206 downstream networks next to it.

PeeringDB lists it as a Content network at 5 internet exchanges and 6 facilities. Its peering policy is open.

NameSeeweb
Registry (RIR)RIPE NCC
CountryItaly (IT)
Delegated on1999-09-07
Network typeContent, Regional
Peering policyOpen
IRR as-setRIPE::AS12637:AS-CUSTOMERS
Prefixes (IPv4 / IPv6)33 / 10
RPKI valid97% (42 / 43)
Upstreams and peers63
Downstream networks206
Websiteseeweb.it

Routing health

  • AS12637 announces 33 IPv4 and 10 IPv6 prefixes.
  • 42 of 43 announced prefixes are RPKI valid.
  • 1 announced prefixes are not covered by a ROA of AS12637 (they may have none, or another network’s).
  • 63 upstreams and peers, 206 downstream networks seen.

For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.

Announced prefixes 43

  • 5.144.160.0/20
  • 37.9.224.0/20
  • 37.9.239.0/24
  • 45.143.157.0/24
  • 46.16.168.0/21
  • 77.83.64.0/24
  • 77.83.65.0/24
  • 80.241.140.0/22
  • 80.241.142.0/24
  • 85.94.192.0/19
  • 85.94.208.0/20
  • 95.174.0.0/19
  • 185.24.104.0/22
  • 185.47.108.0/22
  • 185.146.252.0/22
  • 185.220.244.0/22
  • 185.220.244.0/23
  • 185.220.246.0/24
  • 185.222.68.0/23
  • 185.222.70.0/23
  • 185.228.250.0/24
  • 185.255.138.0/24
  • 193.17.32.0/24
  • 193.200.3.0/24
  • 212.25.160.0/19
  • 212.35.192.0/19
  • 212.66.224.0/19
  • 213.171.160.0/19
  • 217.64.192.0/20
  • 217.168.224.0/20
  • 217.168.224.0/23
  • 217.168.226.0/23
  • 217.194.0.0/20
  • 2a0b:fd40::/29
  • 2a0d:b000::/29
  • 2a02:e9::/32
  • 2a02:ea::/32
  • 2a04:2700::/29
  • 2a05:b6c0::/32
  • 2a05:b6c1::/32
  • 2a05:be80::/29
  • 2001:4b78::/29
  • 2001:4b78::/32

Upstreams and peers 63

The networks RIPE RIS sees next to AS12637 in BGP paths, the most visible first.

Peering

Peering policy: Open. Suggested max-prefix limits: 200 IPv4, 50 IPv6. PeeringDB record

Internet exchanges 5
ExchangePortsSpeedRoute server
AMS-IX110GYes
MINAP Milan: MINAP110GYes
MIX-IT110GYes
Namex Rome: VLAN Peering110GYes
VSIX: Primary110GYes
Facilities 6
FacilityCityCountry
C21MilanIT
MIX DC CALDERAMilanIT
Namex Datacenter RomeRomeIT
Retelit Avalon 1MilanIT
Seeweb Milano CalderaMilanIT
Telnet Caldera MilanMilanIT

More about AS12637

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 07:27 UTC. The country is where the AS number was registered, not necessarily where the network operates.