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AS209531

OSTV

SIX

Registry

Authoritative registration data

AS number
209531
Name
OSTV
Organisation
SIX
Country
—
RIR
RIPE
Registered
Source:asn:rdap retrieved

IPv4 prefixes

4

IPv6 prefixes

4

Total announced

8

Announced prefixes

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

Prefixes announced by AS209531
147.78.168.0/22 IPv4 /22 not checked
147.78.168.0/23 IPv4 /23 not checked
147.78.170.0/23 IPv4 /23 not checked
194.110.119.0/24 IPv4 /24 not checked
2a09:27c0::/29 IPv6 /29 not checked
2a14:5980::/29 IPv6 /29 RPKI valid
2a09:27c0::/30 IPv6 /30 not checked
2a09:27c4::/30 IPv6 /30 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 AS209531
Address families
Peering.cz 20,000 Mbps IPv4 · IPv6
SIX.SK 25,000 Mbps IPv4 · IPv6

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 AS209531 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

18 networks seen before AS209531 in AS paths

No rows match “”.

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Observed downstreams

1 networks seen after AS209531 in AS paths

Observed downstreams
Families
AS208882 AS-COOLNET1-SK 30 67
v4

No rows match “”.

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Uncertain adjacencies

14 adjacencies that may be an artefact of collector peering

Uncertain adjacencies
Families
AS8218 NEO-ASN 1 56
v4 v6
AS49544 i3Dnet 1 16
v4 v6
AS47692 NESSUS 1 12
v4 v6
AS51184 FONIRA 1 12
v4 v6
AS59890 Kabel-TV-Lampert 1 12
v4 v6
AS212483 level86 1 12
v4 v6
AS8529 OMANTEL-AS 1 8
v6
AS28917 Fiord-AS 1 8
v6
AS40994 Alwyzon 1 8
v4 v6
AS3212 TELEMACH 1 6
v4 v6
AS29504 LBCFREE 1 6
v4 v6
AS37721 ORG-VTS1-AFRINIC 1 6
v4 v6
AS198150 SIACOM-AS 1 6
v4 v6
AS35369 LINZAG-TELEKOM-AS 1 2
v4

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.