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AS1133

UTWENTE-AS

University Twente

Registry

Authoritative registration data

AS number
1133
Name
UTWENTE-AS
Organisation
University Twente
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 AS1133
130.89.0.0/16 IPv4 /16 not checked
2001:67c:2564::/48 IPv6 /48 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 AS1133
Address families
ERA-IX Amsterdam 100,000 Mbps IPv4 · IPv6
NDIX 1,000 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 AS1133 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

3 networks seen before AS1133 in AS paths

Observed upstreams
Families
AS1103 SURFNET-NL 173 254
v4 v6
AS35133 ERANIUM 64 84
v6
AS50304 BLIX 2 2
v6

No rows match “”.

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Observed downstreams

0 networks seen after AS1133 in AS paths

No downstreams observed

This AS was not seen carrying traffic towards another network.

Uncertain adjacencies

3 adjacencies that may be an artefact of collector peering

Uncertain adjacencies
Families
AS24482 SGGS-AS-AP 1 2
v6
AS3399 OBE-NET 1 1
v6
AS24961 MYLOC-AS 1 1
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.