ResearchRouting table, RPKI, IRR & looking glass

AS21443 AT&T Global Network Services Nederland B.V.

AS21443 (CH_ATT_11) is registered to AT&T Global Network Services Nederland B.V. in NL. It originates 1 prefix in the global routing table.

1
IPv4 prefixes
0
IPv6 prefixes
256
IPv4 addresses
0%
RPKI valid

Who holds AS21443

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

AS number
AS21443
Handle
CH_ATT_11
Organization
AT&T Global Network Services Nederland B.V.
Country
NL
ASPA
None published

What AS21443 announces

Prefixes originated by AS21443 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
1
IPv6 prefixes
0
IPv4 addresses
256 (1 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
1
ROAs naming AS21443
0
With an IRR route object
1 100%

Announced prefixes

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

IPv4 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS21443 is reached through

The AS just before AS21443 in the paths our looking glass collectors hold, for 1 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

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

Sourceas-nameMaintained by
RIPECH_ATT_11RIPE-NCC-END-MNT, MAINT-AS2686

Route objects with origin AS21443: RADB 2

as-sets that list AS21443 (3)