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AS51155

TBTELECOM

Citylink Telecom Sp. z o.o.

Registry

Authoritative registration data

AS number
51155
Name
TBTELECOM
Organisation
Citylink Telecom Sp. z o.o.
Country
—
RIR
RIPE
Registered
Source:asn:rdap retrieved

IPv4 prefixes

3

IPv6 prefixes

1

Total announced

4

Announced prefixes

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

Prefixes announced by AS51155
178.19.176.0/20 IPv4 /20 not checked
46.227.36.0/23 IPv4 /23 not checked
46.227.38.0/23 IPv4 /23 not checked
2a02:26e8::/32 IPv6 /32 RPKI valid

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 AS51155
Address families
1-IX EU 10,000 Mbps IPv4 · IPv6
EPIX.Warszawa 10,000 Mbps IPv4 · IPv6
Equinix Warsaw 10,000 Mbps IPv4 · IPv6
POM-IX 10,000 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 AS51155 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

11 networks seen before AS51155 in AS paths

Observed upstreams
Families
AS3356 LEVEL3 398 1,508
v4
AS6939 HURRICANE 93 121
v6
AS8218 NEO-ASN 12 50
v4
AS9002 RETN-AS 37 47
v6
AS50629 LWLCOM 6 20
v4
AS9009 M247 4 11
v4
AS6204 ZET-NET 3 10
v4
AS6206 NETROUTING-AS 3 10
v4
AS13194 BITE 3 10
v4
AS201054 EPIX-PolMix 5 5
v4 v6
AS29632 NASSIST-AS 2 2
v6

No rows match “”.

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Observed downstreams

4 networks seen after AS51155 in AS paths

Observed downstreams
Families
AS41865 BIALLNET-AS 147 1,014
v4
AS206651 Telemedian 143 169
v4
AS56408 Airport_Gdansk-AS 10 13
v4
AS51976 JP-TELEKOM-AS 3 5
v4

No rows match “”.

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Uncertain adjacencies

3 adjacencies that may be an artefact of collector peering

Uncertain adjacencies
Families
AS24482 SGGS-AS-AP 8 57
v4 v6
AS34927 iFog-GmbH 3 20
v4
AS49544 i3Dnet 5 13
v4 v6

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.