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AS numbers

AS9021 ISNET Is Net Elektonik Bilgi Uretim Dagitim Ticaret ve Iletisim Hizmetleri A.S.

AS9021 is operated by ISNET Is Net Elektonik Bilgi Uretim Dagitim Ticaret ve Iletisim Hizmetleri A.S. and registered with RIPE NCC (TR) since 1998-10-26.

It announces 152 IPv4 and 1 IPv6 prefixes, 99% of them RPKI valid.

RIPE RIS sees 3 upstream and peer networks and 7 downstream networks next to it.

Run the full network report BGP lookup WHOIS PeeringDB lookup
NameISNET Is Net Elektonik Bilgi Uretim Dagitim Ticaret ve Iletisim Hizmetleri A.S.
Registry (RIR)RIPE NCC
CountryTurkey (TR)
Delegated on1998-10-26
Prefixes (IPv4 / IPv6)152 / 1
RPKI valid99% (152 / 153)
Upstreams and peers3
Downstream networks7

Routing health

  • AS9021 announces 152 IPv4 and 1 IPv6 prefixes.
  • 1 of 153 announced prefixes are RPKI invalid: 90.159.208.0/20.
  • 152 of 153 announced prefixes are RPKI valid.
  • 3 upstreams and peers, 7 downstream networks seen.

For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.

Announced prefixes 153

  • 90.158.0.0/16
  • 90.158.0.0/18
  • 90.158.0.0/22
  • 90.158.0.0/23
  • 90.158.3.0/24
  • 90.158.8.0/24
  • 90.158.15.0/24
  • 90.158.16.0/24
  • 90.158.18.0/24
  • 90.158.19.0/24
  • 90.158.24.0/24
  • 90.158.26.0/24
  • 90.158.28.0/24
  • 90.158.29.0/24
  • 90.158.30.0/24
  • 90.158.31.0/24
  • 90.158.32.0/24
  • 90.158.33.0/24
  • 90.158.36.0/24
  • 90.158.37.0/24
  • 90.158.39.0/24
  • 90.158.41.0/24
  • 90.158.43.0/24
  • 90.158.44.0/24
  • 90.158.45.0/24
  • 90.158.46.0/24
  • 90.158.47.0/24
  • 90.158.48.0/20
  • 90.158.48.0/24
  • 90.158.50.0/23
  • 90.158.51.0/24
  • 90.158.52.0/23
  • 90.158.52.0/24
  • 90.158.53.0/24
  • 90.158.54.0/23
  • 90.158.55.0/24
  • 90.158.56.0/24
  • 90.158.62.0/24
  • 90.158.64.0/21
  • 90.158.64.0/24
  • 90.158.65.0/24
  • 90.158.66.0/24
  • 90.158.67.0/24
  • 90.158.68.0/24
  • 90.158.72.0/22
  • 90.158.72.0/24
  • 90.158.73.0/24
  • 90.158.74.0/24
  • 90.158.75.0/24
  • 90.158.96.0/22
  • 90.158.100.0/24
  • 90.158.102.0/23
  • 90.158.104.0/24
  • 90.158.105.0/24
  • 90.158.106.0/24
  • 90.158.109.0/24
  • 90.158.110.0/24
  • 90.158.111.0/24
  • 90.158.112.0/20
  • 90.158.116.0/24
  • 90.158.119.0/24
  • 90.158.120.0/24
  • 90.158.121.0/24
  • 90.158.122.0/24
  • 90.158.123.0/24
  • 90.158.125.0/24
  • 90.158.126.0/24
  • 90.158.127.0/24
  • 90.158.128.0/17
  • 90.158.128.0/21
  • 90.158.136.0/21
  • 90.158.137.0/24
  • 90.158.138.0/24
  • 90.158.139.0/24
  • 90.158.160.0/24
  • 90.158.200.0/23
  • 90.158.224.0/22
  • 90.158.240.0/21
  • 90.158.244.0/22
  • 90.158.248.0/21
  • 90.158.249.0/24
  • 90.158.251.0/24
  • 90.158.252.0/22
  • 90.159.0.0/16
  • 90.159.0.0/22
  • 90.159.4.0/23
  • 90.159.15.0/24
  • 90.159.20.0/24
  • 90.159.26.0/24
  • 90.159.27.0/24
  • 90.159.29.0/24
  • 90.159.34.0/24
  • 90.159.50.0/24
  • 90.159.58.0/24
  • 90.159.61.0/24
  • 90.159.64.0/18
  • 90.159.64.0/24
  • 90.159.128.0/20
  • 90.159.136.0/21
  • 90.159.136.0/24

Showing the first 100.

RPKI problems

  • Invalid 90.159.208.0/20

Upstreams and peers 3

The networks RIPE RIS sees next to AS9021 in BGP paths, the most visible first.

Peering

AS9021 is not in PeeringDB. Networks that peer at internet exchanges are expected to keep a record there with their policy, exchange addresses and contacts.

More about AS9021

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 07:52 UTC. The country is where the AS number was registered, not necessarily where the network operates.