ResearchRouting table, RPKI, IRR & looking glass

AS51557 Isimtescil Bilisim A.S.

AS51557 (TR-ISIMTESCIL-20201202) is registered to Isimtescil Bilisim A.S. in TR. It originates 11 prefixes in the global routing table.

11
IPv4 prefixes
0
IPv6 prefixes
7,680
IPv4 addresses
100%
RPKI valid

Who holds AS51557

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

AS number
AS51557
Handle
TR-ISIMTESCIL-20201202
Organization
Isimtescil Bilisim A.S.
Country
TR
ASPA
None published

What AS51557 announces

Prefixes originated by AS51557 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
11
IPv6 prefixes
0
IPv4 addresses
7,680 (30 /24s)
RPKI valid
11 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS51557
12
With an IRR route object
4 36%

Announced prefixes

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

Who AS51557 is reached through

The AS just before AS51557 in the paths our looking glass collectors hold, for 11 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
RIPETR-ISIMTESCIL-20201202RIPE-NCC-END-MNT, TR-ISIMTESCIL-1-MNT

Route objects with origin AS51557: RIPE 10

as-sets that list AS51557 (2)