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AS21309

CASAWEB-AS

Herabit SpA, via Molino Rosso 8 IMOLA (BO) ITALY

Registry

Authoritative registration data

AS number
21309
Name
CASAWEB-AS
Organisation
Herabit SpA, via Molino Rosso 8 IMOLA (BO) ITALY
Country
—
RIR
RIPE
Registered
Source:asn:rdap retrieved

IPv4 prefixes

56

IPv6 prefixes

1

Total announced

57

Announced prefixes

Observed in BGP by route collectors, not a registry allocation list

Prefixes announced by AS21309
213.209.192.0/18 IPv4 /18 RPKI valid
77.89.0.0/18 IPv4 /18 RPKI valid
213.174.160.0/19 IPv4 /19 not checked
213.209.192.0/19 IPv4 /19 not checked
213.209.224.0/19 IPv4 /19 RPKI valid
77.89.0.0/19 IPv4 /19 RPKI valid
77.89.32.0/19 IPv4 /19 RPKI valid
83.216.160.0/19 IPv4 /19 RPKI valid
86.110.128.0/19 IPv4 /19 RPKI valid
213.174.160.0/20 IPv4 /20 not checked
213.174.176.0/20 IPv4 /20 RPKI valid
213.209.192.0/20 IPv4 /20 RPKI valid
213.209.208.0/20 IPv4 /20 RPKI valid
213.209.224.0/20 IPv4 /20 RPKI valid
213.209.240.0/20 IPv4 /20 RPKI valid
77.89.0.0/20 IPv4 /20 RPKI valid
77.89.16.0/20 IPv4 /20 not checked
77.89.32.0/20 IPv4 /20 RPKI valid
77.89.48.0/20 IPv4 /20 RPKI valid
83.216.160.0/20 IPv4 /20 not checked
83.216.176.0/20 IPv4 /20 not checked
86.110.128.0/20 IPv4 /20 not checked
86.110.144.0/20 IPv4 /20 RPKI valid
213.174.160.0/21 IPv4 /21 RPKI valid
213.174.168.0/21 IPv4 /21 not checked
213.174.176.0/21 IPv4 /21 RPKI valid
213.174.184.0/21 IPv4 /21 not checked
5.63.136.0/21 IPv4 /21 RPKI valid
83.216.160.0/21 IPv4 /21 not checked
83.216.168.0/21 IPv4 /21 not checked
83.216.176.0/21 IPv4 /21 not checked
83.216.184.0/21 IPv4 /21 RPKI valid
86.110.128.0/21 IPv4 /21 RPKI valid
86.110.136.0/21 IPv4 /21 RPKI valid
86.110.144.0/21 IPv4 /21 RPKI valid
86.110.152.0/21 IPv4 /21 not checked
185.123.8.0/22 IPv4 /22 not checked
185.239.96.0/22 IPv4 /22 RPKI not found
188.125.100.0/22 IPv4 /22 not checked
188.125.104.0/22 IPv4 /22 not checked
188.125.108.0/22 IPv4 /22 RPKI valid
188.125.112.0/22 IPv4 /22 not checked
188.125.116.0/22 IPv4 /22 RPKI valid
188.125.120.0/22 IPv4 /22 RPKI valid
188.125.124.0/22 IPv4 /22 RPKI valid
188.125.96.0/22 IPv4 /22 not checked
31.216.240.0/22 IPv4 /22 RPKI valid
31.216.244.0/22 IPv4 /22 not checked
31.216.248.0/22 IPv4 /22 RPKI valid
31.216.252.0/22 IPv4 /22 not checked
80.86.144.0/22 IPv4 /22 not checked
80.86.148.0/22 IPv4 /22 not checked
80.86.152.0/22 IPv4 /22 not checked
80.86.156.0/22 IPv4 /22 RPKI valid
185.182.196.0/23 IPv4 /23 not checked
185.182.198.0/23 IPv4 /23 RPKI valid
2a03:c380::/32 IPv6 /32 not checked

No rows match “”.

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Source:ripestat:announced-prefixes observed

Internet Exchanges

Exchanges where this network has a listed peering LAN connection

Internet Exchange memberships listed for AS21309
Address families
MIX Bologna 10,000 Mbps IPv4 · IPv6
MIX-IT 50,000 Mbps IPv4 · IPv6
VSIX: Primary 100,000 Mbps IPv4

No rows match “”.

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Source:peeringdb retrieved

Exchange membership means the network has a listed connection; it does not prove peering with other members.

Observed adjacencies

Networks seen next to AS21309 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

23 networks seen before AS21309 in AS paths

Observed upstreams
Families
AS174 COGENT-174 564 5,726
v4 v6
AS9002 RETN-AS 644 5,087
v4 v6
AS6762 SEABONE-NET 311 2,265
v4 v6
AS6939 HURRICANE 155 1,296
v4 v6
AS13030 INIT7 38 620
v4 v6
AS8218 NEO-ASN 13 611
v4 v6
AS5405 INTERDOTLINK 25 418
v4 v6
AS14840 ASN14840 14 312
v4 v6
AS29075 IELO 15 167
v4 v6
AS22356 ASN22356 8 154
v4
AS137409 GSLNETWORKS-AS-AP 9 151
v4
AS8220 COLT 7 143
v4
AS24961 MYLOC-AS 8 116
v4 v6
AS4455 BSO 9 101
v4
AS2593 ASN-VSIX 5 57
v4
AS6204 ZET-NET 5 57
v4
AS60171 AFRIX-AS 5 57
v4
AS9009 M247 3 55
v4
AS31543 MYNET-AS 3 25
v4
AS9498 BBIL-AP 2 24
v4
AS39120 CONVERGENZE-AS 1 19
v4
AS263444 ASN263444 1 19
v4
AS28716 RETELIT-AS 2 2
v6

No rows match “”.

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Observed downstreams

10 networks seen after AS21309 in AS paths

Observed downstreams
Families
AS197807 EOS 405 2,484
v4 v6
AS49535 EMIND 26 373
v4
AS31495 TELERETE-AS 261 336
v4
AS211102 PREVINET-AS 206 271
v4
AS214164 ASN-INTERPORTOPD 194 250
v4
AS42933 BOLOGNA-AIRPORT-AS 85 109
v4
AS35514 GEOX 64 99
v4
AS207157 CAMESPA-AS 22 62
v4
AS15923 ASN-LOGOS 33 39
v4
AS8884 CRIF-AS 19 25
v4

No rows match “”.

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Uncertain adjacencies

28 adjacencies that may be an artefact of collector peering

No rows match “”.

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Note:
These are observed adjacencies derived from BGP path data, not confirmed commercial relationships. A network appearing before another in an AS path does not establish that it is a paying transit customer, a settlement free peer, or anything else contractual. Adjacencies marked uncertain were seen only as direct peers of a route collector, so the collector's own peering may have created them.