An Autonomous System Number (ASN) is a unique number assigned to a network in global internet routing. Every provider that participates directly on the internet has its own ASN (e.g. AS15169 for Google).

What are upstreams, peers and prefixes?

Upstreams are transit providers through which an AS reaches the internet. Peers are networks with direct traffic exchange. Prefixes are the IP address ranges the AS announces via BGP.

Where does the ASN data come from?

The data comes from the official RDAP services of the RIRs (RIPE, ARIN, etc.) and from RIPEstat (prefixes and neighbour ASNs).

ASN Lookup – Networks, Upstreams and Prefixes

AS1241

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS1241

NameFORTHNET-GR

OrganisationFORTHNETGR-MNT

Country –

RIRRIPE NCC

Allocated29.05.2002

Abuse contactabuse@forthnet.gr

Network Overview

IPv4 Prefixes70

IPv6 Prefixes29

Upstreams (Transit)73

Downstreams (Customers)30

BGP Peers108

AS Path (BGP neighbours)

Upstreams (Transit)

AS1031PEER 1031 LLC AS12577MMC GmbH AS12637Seeweb s.r.l.AS1267WIND TRE S.P.A.AS12735TurkNet Iletisim Hizmetleri A.S.AS13030Init7 (Switzerland) Ltd.+67

AS1241FORTHNET-GR

Downstreams (Customers)

AS16013Unisystems SA AS197534ICAP CRIF A.E.AS197746Georgios Vardikos trading as "HYPERHOSTING"AS199375Service 800 Teleperformance Single Member S.A.AS199382Regency Entertainment S.A.AS204932George Sgouridis trading as Friktoria.com - Data Center Services.+24

Upstreams (Transit) (73)

AS1031PEER 1031 LLC

AS12577MMC GmbH

AS12637Seeweb s.r.l.

AS1267WIND TRE S.P.A.

AS12735TurkNet Iletisim Hizmetleri A.S.

AS13030Init7 (Switzerland) Ltd.

AS137409GSL Networks Pty LTD

AS14840BR.DIGITAL

AS15576NTS workspace AG

AS15802Emirates Integrated Telecommunications Company PJSC

AS15958CETIN Ltd. Belgrade

AS1764Next Layer Telecommunications

Downstreams (Customers) (30)

AS16013Unisystems SA

AS197534ICAP CRIF A.E.

AS197746Georgios Vardikos trading as "HYPERHOSTING"

AS199375Service 800 Teleperformance Single Member S.A.

AS199382Regency Entertainment S.A.

AS204932George Sgouridis trading as Friktoria.com - Data Center Services.

AS206349Helleniq Energy Digital Monoprosopi SA

AS206697Eurolife ERB General Insurance SA

AS207955Orbyt Global S.A.

AS211109CRS Liknoss Monoprosopi SA

AS213218Minoan Lines Shipping S.A.

AS214261AUTOHELLAS TOURIST AND TRADING SOCIETE ANONYME

IPv4 Prefixes (70)

91.198.183.0/24

194.219.0.0/24

212.251.0.0/18

130.43.0.0/18

195.74.224.0/19

62.1.85.0/24

79.103.0.0/16

62.1.248.0/21

91.230.247.0/24

213.16.253.0/24

194.219.0.0/16

212.251.64.0/18

213.16.128.0/17

212.251.0.0/17

46.246.192.0/18

130.43.0.0/17

77.49.128.0/17

46.12.0.0/18

213.16.224.0/20

130.43.96.0/19

130.43.32.0/19

194.219.128.0/17

194.219.223.0/24

130.43.0.0/19

46.12.0.0/16

213.16.144.0/20

185.72.148.0/24

212.251.91.0/24

62.1.41.0/24

46.12.64.0/18

212.54.192.0/19

46.246.128.0/18

62.1.0.0/16

79.103.0.0/18

194.219.231.0/24

193.92.0.0/16

91.223.104.0/24

213.16.128.0/18

194.219.41.0/24

185.117.229.0/24

188.4.128.0/17

176.97.196.0/24

212.251.56.0/24

130.43.64.0/18

194.0.185.0/24

79.103.128.0/18

188.4.0.0/16

79.103.192.0/18

77.49.0.0/16

91.216.206.0/24

193.92.128.0/17

62.1.0.0/17

188.4.0.0/17

46.246.128.0/17

62.1.128.0/17

213.16.192.0/18

194.50.43.0/24

62.1.53.0/24

193.92.199.0/24

79.103.64.0/18

193.218.1.0/24

46.12.192.0/18

77.49.0.0/17

77.49.64.0/20

77.49.0.0/18

46.12.128.0/18

62.1.44.0/24

193.92.0.0/17

193.92.85.0/24

194.219.0.0/17

IPv6 Prefixes (29)

2a02:214d:4000::/34

2a02:2149:8a80::/42

2a02:2149:8a40::/42

2a02:2148::/29

2a02:2149:8a00::/42

2a02:2149:8b40::/42

2a02:2149::/33

2a02:214c:8200::/39

2a02:2149:8b00::/42

2a02:2149:8200::/39

2a02:2149:8000::/34

2a02:214b::/32

2a02:2149:8bc0::/42

2a02:214c:8800::/39

2a02:2149:8400::/39

2a02:2149:8ac0::/42

2a02:214c::/32

2a02:2149:8000::/39

2a02:214d:c000::/35

2a02:2149:8000::/33

2a02:2149:8800::/39

2a02:2149:8b80::/42

2a02:214d::/32

2a02:214d:e800::/37

2a02:214d:e000::/36

2a02:214c:8600::/39

2a02:2149::/32

2a02:2149:8600::/39

2a02:214c:8000::/39

BGP Peers (108)

AS1103SURF B.V.

AS1140Stichting Internet Domeinregistratie Nederland

AS12779IT.Gate S.p.A.

AS12859BIT BV

AS12969Ljósleiðarinn ehf (Sýn)

AS13237euNetworks GmbH

AS142271EWS DS Networks Inc

AS14630Invesco Group Services, Inc.

AS14907Wikimedia Foundation Inc.

AS15547netplus.ch SA

AS15605Connesi S.p.A.

AS17639Converge ICT Solutions Inc.