ResearchRouting table, RPKI, IRR & looking glass

AS28821 University of Doha for Science and Technology

AS28821 (UDST-QATAR) is registered to University of Doha for Science and Technology in QA. It originates 6 prefixes in the global routing table.

4
IPv4 prefixes
2
IPv6 prefixes
1,024
IPv4 addresses
100%
RPKI valid

Who holds AS28821

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

AS number
AS28821
Handle
UDST-QATAR
Organization
University of Doha for Science and Technology
Country
QA
ASPA
None published

What AS28821 announces

Prefixes originated by AS28821 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
4
IPv6 prefixes
2
IPv4 addresses
1,024 (4 /24s)
RPKI valid
6 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS28821
6
With an IRR route object
2 33%

Announced prefixes

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

IPv4 (4)
IPv6 (2)

RPKI valid   RPKI invalid   no ROA covers it

Who AS28821 is reached through

The AS just before AS28821 in the paths our looking glass collectors hold, for 6 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
RIPEUDST-QATARRIPE-NCC-END-MNT, QA-CNAQ-1-MNT

Route objects with origin AS28821: RADB 3 · RIPE 2

as-sets that list AS28821 (5)