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AS43542

OptoNet-AS

======== TRANSIT UPSTREAM ========

Registry

Authoritative registration data

AS number
43542
Name
OptoNet-AS
Organisation
======== TRANSIT UPSTREAM ========
Country
—
RIR
RIPE
Registered
Source:asn:rdap retrieved

IPv4 prefixes

1

IPv6 prefixes

1

Total announced

2

Announced prefixes

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

Prefixes announced by AS43542
78.156.128.0/19 IPv4 /19 not checked
2a00:d940::/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

No Internet Exchange memberships found

The exchange directory has no current membership records for this AS.

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 AS43542 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

11 networks seen before AS43542 in AS paths

Observed upstreams
Families
AS6855 SK-TELEKOM 445 809
v4 v6
AS6939 HURRICANE 171 268
v4 v6
AS16019 VODAFONE-CZ-AS 118 145
v4 v6
AS8218 NEO-ASN 19 48
v4 v6
AS22356 ASN22356 25 41
v4 v6
AS14840 ASN14840 10 40
v4 v6
AS1764 NEXTLAYER-AS 12 36
v4 v6
AS6204 ZET-NET 5 7
v4
AS4455 BSO 4 6
v4
AS6663 TTI-NET 4 6
v4
AS263444 ASN263444 4 6
v4

No rows match “”.

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Observed downstreams

4 networks seen after AS43542 in AS paths

Observed downstreams
Families
AS207945 CNI 296 663
v4 v6
AS202979 ngaservices 201 335
v4 v6
AS44104 LCJ-AS 142 169
v4
AS48091 ROWANet-AS 4 8
v4

No rows match “”.

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Uncertain adjacencies

5 adjacencies that may be an artefact of collector peering

Uncertain adjacencies
Families
AS24482 SGGS-AS-AP 4 45
v4 v6
AS51184 FONIRA 4 18
v4 v6
AS29504 LBCFREE 5 10
v4 v6
AS40994 Alwyzon 4 9
v4 v6
AS49544 i3Dnet 4 9
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.