AS786 JANET Jisc Services Limited

JANET Jisc Services Limited · registered in the United Kingdom

IPv4 addresses6,885,120196 prefixes · 0.220% of announced IPv4

Rank in United Kingdom#3largest network in GB by IPv4 space, of 2,074 · 10.14% of GB

Rank worldwide#70of 79,396 networks with IPv4

IPv626 x /32 (1,703,938 x /48)7 prefixes

CountryUnited Kingdom2,261 ASNs registered there

Open AS786 in ASN lookup Look up an IP in this network (45.88.80.1) All networks in United Kingdom

IPv4 prefixes

All 196 prefixes, in address order.

45.88.80.0/23
46.254.200.0/21
77.241.76.0/22
81.87.0.0/16
83.138.32.0/21
92.245.224.0/19
128.16.0.0/16
128.40.0.0/16
128.41.0.0/18
128.86.0.0/16
128.232.0.0/16
128.240.0.0/16
128.243.0.0/16
129.11.0.0/16
129.12.0.0/16
129.31.0.0/16
129.67.0.0/16
129.169.0.0/16
129.215.0.0/16
129.234.0.0/16
130.88.0.0/16
130.159.0.0/16
130.209.0.0/16
130.246.0.0/16
131.111.0.0/16
131.227.0.0/16
131.231.0.0/16
131.251.0.0/16
134.36.0.0/16
134.83.0.0/16
134.151.0.0/16
134.219.0.0/16
134.220.0.0/16
134.225.0.0/16
136.148.32.0/19
136.148.104.0/21
136.148.112.0/20
136.148.224.0/19
136.156.0.0/19
136.156.88.0/22
136.156.160.0/21
136.156.176.0/21
137.44.0.0/18
137.50.0.0/16
137.73.0.0/16
137.108.0.0/16
137.195.0.0/17
137.195.128.0/18
137.195.192.0/19
137.195.240.0/20
137.222.0.0/16
137.253.0.0/16
138.38.0.0/16
138.40.0.0/16
138.250.0.0/15
138.253.0.0/16
139.133.0.0/16
139.153.0.0/16
139.166.0.0/16
139.184.0.0/16
139.222.0.0/16
140.97.0.0/16
141.163.0.0/18
141.163.64.0/19
141.163.96.0/20
141.241.0.0/16
143.52.0.0/15
143.117.0.0/16
143.167.0.0/16
143.210.0.0/16
143.234.0.0/16
144.32.0.0/16
144.82.0.0/16
144.124.0.0/17
144.173.0.0/16
146.87.0.0/16
146.97.0.0/16
146.169.0.0/16
146.176.0.0/16
146.179.0.0/16
146.191.0.0/16
146.227.0.0/16
147.143.0.0/16
147.188.0.0/16
147.197.0.0/16
148.79.0.0/16
148.88.0.0/16
148.197.0.0/16
149.155.0.0/16
149.170.0.0/19
149.170.32.0/20
149.170.48.0/21
149.170.64.0/18
149.170.128.0/20
149.170.160.0/21
149.170.184.0/21
149.170.192.0/21
149.170.208.0/20
149.170.240.0/20
150.204.0.0/16
152.71.0.0/16
152.78.0.0/16
152.105.0.0/16
155.198.0.0/16
155.245.0.0/16
157.140.0.0/16
157.228.0.0/20
158.94.0.0/19
158.94.224.0/19
158.125.0.0/16
158.143.0.0/16
158.223.0.0/16
159.86.0.0/17
159.86.128.0/18
159.86.192.0/18
160.5.248.0/21
160.9.0.0/16
161.73.0.0/16
161.74.0.0/16
161.76.0.0/16
161.112.0.0/16
163.1.0.0/16
163.119.0.0/17
163.167.0.0/16
164.11.0.0/16
185.255.108.0/22
192.12.72.0/24
192.18.195.0/24
192.35.172.0/24
192.41.103.0/24
192.41.104.0/21
192.41.112.0/20
192.41.128.0/22
192.42.100.0/24
192.65.28.0/23
192.68.153.0/24
192.76.6.0/23
192.76.8.0/21
192.76.16.0/20
192.76.32.0/22
192.82.153.0/24
192.84.5.0/24
192.84.75.0/24
192.84.76.0/22
192.88.9.0/24
192.94.235.0/24
192.100.78.0/24
192.107.168.0/24
192.108.120.0/24
192.124.46.0/24
192.133.244.0/24
192.149.111.0/24
192.150.184.0/24
192.153.213.0/24
192.156.162.0/24
192.171.128.0/18
192.171.192.0/21
192.173.1.0/24
192.173.2.0/23
192.173.4.0/24
192.173.128.0/21
192.190.201.0/24
192.190.202.0/24
192.195.42.0/23
192.195.105.0/24
192.195.116.0/23
192.195.118.0/24
193.32.22.0/24
193.37.225.0/24
193.37.240.0/21
193.38.143.0/24
193.39.80.0/21
193.39.172.0/22
193.39.212.0/24
193.60.0.0/14
193.107.116.0/22
193.130.15.0/24
193.133.28.0/23
193.138.86.0/24
193.142.216.0/24
194.32.32.0/20
194.35.93.0/24
194.35.186.0/24
194.35.192.0/19
194.35.241.0/24
194.36.1.0/24
194.36.2.0/23
194.36.121.0/24
194.36.152.0/21
194.60.218.0/24
194.66.0.0/16
194.80.0.0/14
195.194.0.0/15
212.121.0.0/19
212.121.192.0/19
212.219.0.0/16

IPv6 prefixes

All 7 prefixes.

2001:630::/32
2001:678:718::/48
2a03:aba0::/29
2a05:b400::/32
2a09:9180:fd::/48
2a0a:200::/29
2a0c:5bc0::/29

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AS13285#5 OPALTELECOM-AS TalkTalk Communications Limited3,954,944

AS5378#6 Vodafone Limited2,523,136

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources