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

AS33915

ASN

RIPE NCC

RIR

342

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS33915

NameTNF-AS

OrganisationVodafone Libertel B.V.

Country –

RIRRIPE NCC

Allocated06.09.2004

Abuse contactesabuse.nl@vodafoneziggo.com

Network Overview

IPv4 Prefixes342

IPv6 Prefixes31

Upstreams (Transit)1

Downstreams (Customers)27

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS6830Liberty Global Europe Holding B.V.

AS33915TNF-AS

Downstreams (Customers)

AS12315Quality Service Provider BV AS200428SouthernHill BV AS201644Brabant Water N.V AS203159Aramco Overseas Company BV AS203474Gemeente De Fryske Marren AS205637Gemeente Amsterdam+21

Upstreams (Transit) (1)

AS6830Liberty Global Europe Holding B.V.

Downstreams (Customers) (27)

AS12315Quality Service Provider BV

AS200428SouthernHill BV

AS201644Brabant Water N.V

AS203159Aramco Overseas Company BV

AS203474Gemeente De Fryske Marren

AS205637Gemeente Amsterdam

AS206475Koopman Logistics Group BV

AS207275Gemeente Gooise Meren

AS207894Gemeente Sudwest-Fryslan

AS208240Gemeente Rotterdam

AS208973Gemeente Haarlem

AS209390CTNET ICT Infrastructuur B.V

IPv4 Prefixes (256)

217.105.32.0/19

178.84.0.0/15

109.32.0.0/13

217.62.0.0/16

213.34.176.0/20

77.250.0.0/15

82.72.0.0/15

185.137.200.0/23

195.35.128.0/18

89.220.128.0/18

212.204.128.0/18

213.127.0.0/16

84.104.0.0/14

213.125.0.0/16

80.57.0.0/16

212.187.64.0/18

193.176.191.0/24

83.80.0.0/13

89.220.128.0/17

217.63.160.0/19

80.248.40.0/21

46.129.0.0/16

194.35.73.0/24

92.110.0.0/15

80.112.0.0/18

213.51.0.0/16

213.34.160.0/20

195.18.64.0/18

195.85.160.0/19

212.178.48.0/20

217.103.128.0/17

82.72.0.0/14

195.35.128.0/17

85.88.96.0/19

217.103.0.0/17

94.208.0.0/13

217.105.128.0/19

24.132.0.0/16

213.34.128.0/19

212.178.192.0/19

217.105.160.0/19

80.114.160.0/19

212.120.96.0/19

62.163.128.0/17

82.151.160.0/19

217.63.192.0/18

62.163.0.0/16

217.104.128.0/18

82.217.0.0/16

217.120.0.0/15

24.132.128.0/17

145.11.60.0/24

212.203.0.0/20

80.242.224.0/19

212.54.32.0/20

91.105.216.0/24

195.128.144.0/24

80.115.224.0/19

46.29.240.0/24

185.117.208.0/24

46.129.0.0/17

194.26.32.0/19

213.124.128.0/19

213.34.160.0/19

195.130.223.0/24

145.46.255.0/24

95.96.0.0/15

148.200.240.0/21

62.194.0.0/15

81.175.64.0/18

85.147.128.0/17

194.35.11.0/24

213.132.160.0/19

188.92.152.0/23

160.20.148.0/22

213.93.0.0/17

212.127.192.0/18

145.8.180.0/24

62.108.16.0/20

217.105.128.0/18

89.98.0.0/15

213.34.112.0/20

213.124.160.0/20

80.85.32.0/20

80.112.0.0/17

80.115.240.0/20

217.102.224.0/21

185.130.174.0/23

213.93.0.0/16

83.80.0.0/14

217.62.0.0/17

212.54.48.0/20

94.212.0.0/14

193.176.176.0/24

217.105.64.0/19

212.203.16.0/20

159.100.64.0/18

213.127.128.0/17

31.136.0.0/14

213.73.192.0/18

82.101.192.0/18

212.83.80.0/20

80.115.128.0/18

145.11.62.0/24

213.126.0.0/17

213.34.64.0/20

83.84.0.0/14

81.175.96.0/19

185.72.164.0/22

80.114.0.0/17

91.105.220.0/22

80.115.128.0/19

213.126.64.0/18

80.242.224.0/20

91.105.217.0/24

213.124.64.0/18

217.105.0.0/19

213.73.128.0/18

193.176.8.0/21

193.176.160.0/20

217.104.0.0/17

217.63.32.0/19

89.220.192.0/18

185.222.228.0/22

217.105.192.0/20

217.101.0.0/17

144.2.255.0/24

84.104.0.0/15

217.104.0.0/18

77.248.0.0/15

217.105.96.0/19

80.114.192.0/18

62.163.0.0/17

217.104.64.0/18

88.211.128.0/18

212.78.192.0/19

212.178.32.0/20

62.140.156.0/23

217.63.224.0/19

213.127.0.0/17

80.112.64.0/18

213.132.176.0/20

62.72.192.0/19

217.102.208.0/20

213.124.160.0/19

91.221.96.0/23

62.108.0.0/19

145.46.191.0/24

213.124.224.0/19

213.34.16.0/20

185.137.200.0/22

217.122.0.0/15

95.97.0.0/16

5.199.188.0/22

89.99.0.0/16

46.129.128.0/17

217.63.128.0/18

84.106.0.0/15

145.11.61.0/24

217.105.64.0/18

213.124.192.0/19

195.85.128.0/19

212.54.32.0/19

80.114.224.0/19

212.127.128.0/18

85.147.0.0/17

194.104.70.0/24

82.217.128.0/17

80.115.0.0/18

217.102.160.0/19

82.74.0.0/15

194.35.75.0/24

193.176.6.0/24

217.63.192.0/19

194.104.99.0/24

217.102.0.0/18

193.200.147.0/24

217.105.0.0/18

148.200.0.0/21

212.178.96.0/19

217.102.128.0/18

213.160.192.0/19

193.176.136.0/21

62.145.192.0/19

213.124.0.0/18

31.151.0.0/17

91.226.32.0/24

212.178.192.0/20

31.151.128.0/17

80.113.0.0/17

80.112.160.0/19

213.93.128.0/17

193.176.7.0/24

217.100.128.0/17

217.102.64.0/18

94.168.0.0/18

62.140.140.0/23

212.178.32.0/19

217.100.0.0/17

217.17.128.0/20

80.114.64.0/18

62.145.192.0/18

80.115.0.0/17

185.94.92.0/22

217.102.0.0/17

62.195.0.0/16

80.56.0.0/15

212.83.64.0/20

80.248.32.0/21

82.151.176.0/20

217.102.224.0/22

217.105.208.0/20

213.125.128.0/17

92.108.0.0/14

145.11.48.0/24

195.35.192.0/18

212.127.128.0/17

178.85.0.0/16

178.84.0.0/16

217.105.224.0/20

93.117.192.0/18

84.24.0.0/13

193.105.108.0/24

212.178.128.0/20

213.160.192.0/20

82.101.224.0/19

62.140.128.0/20

212.178.128.0/19

212.204.128.0/19

91.223.56.0/24

91.105.218.0/23

213.124.192.0/18

46.29.241.0/24

193.176.177.0/24

217.100.0.0/16

80.113.0.0/16

185.137.202.0/23

24.132.0.0/17

82.151.160.0/20

213.34.96.0/19

194.104.64.0/20

94.208.0.0/14

212.187.0.0/18

80.115.64.0/18

85.147.0.0/16

195.85.128.0/18

148.200.140.0/22

92.108.0.0/15

62.100.0.0/18

89.98.0.0/16

80.114.192.0/19

145.79.32.0/21

217.112.112.0/20

80.56.0.0/16

83.167.192.0/19

193.176.253.0/24

IPv6 Prefixes (31)

2a07:3500:15c0::/48

2a07:3502:10c0::/48

2a02:a210::/28

2a00:7940::/32

2a02:938::/29

2a07:3500:1240::/46

2a00:7740::/32

2a07:3500:1890::/48

2a07:3500:12f8::/48

2a03:4aa0::/29

2a02:a200::/27

2a07:3502:1060::/48

2a00:18c8::/29

2001:1c00::/23

2a07:3500:1b90::/48

2a07:3502:11a0::/46

2001:41f0::/29

2001:1d00::/24

2001:b88::/33

2a07:3501:1340::/48

2a07:3502:1050::/48

2a07:3500:15a0::/48

2a07:3500:17f8::/48

2a07:3500:1778::/48

2a02:a200::/28

2a07:3500:1170::/48

2001:1c00::/24

2a07:3502:10a1::/48

2a05:3b80::/29

2a07:3500:12d0::/48

2a07:3500:1180::/48

My IP ASN Lookup IP Lookup WHOIS DNS Lookup

What is an ASN?

An Autonomous System Number (ASN) is a unique number assigned to a network on the internet. Upstreams are the transit providers through which the AS reaches the internet. Peers are networks with which direct traffic exchange takes place. Prefixes are the IP address ranges that the AS announces to the internet. Data via RIPE NCC RDAP and RIPEstat API.