ResearchRouting table, RPKI, IRR & looking glass

AS25538 Internet Ulm/Neu-Ulm e.V.

AS25538 (IN-ULM) is registered to Internet Ulm/Neu-Ulm e.V. in DE. It originates 4 prefixes in the global routing table.

3
IPv4 prefixes
1
IPv6 prefixes
5,376
IPv4 addresses
100%
RPKI valid

Who holds AS25538

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS25538
Handle
IN-ULM
Organization
Internet Ulm/Neu-Ulm e.V.
Country
DE
ASPA
4 providers

What AS25538 announces

Prefixes originated by AS25538 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
3
IPv6 prefixes
1
IPv4 addresses
5,376 (21 /24s)
RPKI valid
4 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS25538
5
With an IRR route object
4 100%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (3)
IPv6 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS25538 is reached through

The AS just before AS25538 in the paths our looking glass collectors hold, for 4 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Provider authorization

AS25538 publishes an ASPA naming these providers. 1 AS name it as a provider in theirs. Check a path.

The 1 ASes that name AS25538 as a provider

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
RIPEIN-ULMRIPE-NCC-END-MNT, BN-ULM

Route objects with origin AS25538: RIPE 5

as-sets that list AS25538 (7)