ResearchIRR · RIPE

AS-JANETUS JANET and transit ASes to announce to US peers

An as-set registered in RIPE, maintained by JIPS-NOSC. It names 50 ASes and 2 sets directly; followed all the way down, it reaches 57 ASes through 3 nested sets.

Members

What AS-JANETUS lists

50 ASes and 2 sets, written in the object across every registry that holds it. Sets open their own page.

AS-HEANETAS-LGFLPLUSAS7 DSTLAS786 JANETAS4373 OCLC-ASAS5503 RMIFLAS5552 DIALNET-UKAS8190 MDNXAS8546 YOUR-COMMS-UK-ASAS15770 DERWENTSIDEAS24775 AS24775AS25343 COVENTRY-ASAS29212AS29626 STAFFSCCAS31256 WARWICKSHIRECCAS33967 GB-LANCSCCAS35299 ASC2kAS35832 BGFLAS43198 OUTSOURCERY-ASAS44110 WALSALLAS44369 EMBC-EMPSN-ASAS44403 BRISTOL-CITY-COUNCILAS44442 TelfordWrekinCouncilASAS49247 ESFRSAS49728 HEREFORDSHIRE-COUNCILAS51704 SWGFLAS51946 NEWCASTLE-UNI-NUSAJAYA-CAMPUSAS52215AS56670 WSCC-ASAS56929 WBC-NETAS57377 LONDON-BOROUGH-OF-MERTONAS59581 GB-LANCSCC-2AS60187 LGFL-ASAS60282 COVCITYCOUNCILAS133084 JISC-APAS196902 DUDLEY-MBCAS198032 UCLES-ASAS198222 WHC-ASAS198863 CUP-ASAS198864 QMW-AC-UKAS199131 CITY-OF-YORK-COUNCILAS199713 MLL-ASAS201261 WatershedAS201773 UOW-ASAS202012 AS-GEANT-OfficeAS202575 UNI-HULLAS206490 SOUTHENDBC-ASAS207039 SAC-ASAS209198 AS-ORECATAS209237 NPL-MANG-LTDAS211067 LECAS211775 NGFL-ASN
Expanded

Every AS it reaches

What a filter built from AS-JANETUS would let in: 57 ASes.

Show the 57 ASes
AS7AS112AS786AS1213AS1921AS2128AS2850AS4373AS5503AS5552AS8190AS8546AS15770AS24775AS25343AS29212AS29626AS31256AS33967AS35299AS35832AS42310AS42987AS43198AS44110AS44369AS44403AS44442AS49247AS49728AS51704AS51946AS52215AS56670AS56929AS57377AS59581AS60187AS60282AS133084AS196902AS198032AS198222AS198863AS198864AS199131AS199713AS201261AS201773AS202012AS202575AS206490AS207039AS209198AS209237AS211067AS211775
Prefixes

What AS-JANETUS covers

Every route object in the IRR whose origin is one of the 57 ASes it reaches: the prefixes a filter built from AS-JANETUS (with bgpq4, say) would allow. 715 IPv4 and 66 IPv6. Every one is in the IRR API.

715 IPv4 prefixes
103.233.180.0/23103.233.180.0/24103.233.181.0/24109.204.0.0/17113.29.23.0/24128.16.0.0/16128.232.0.0/16128.240.0.0/16128.243.0.0/16128.40.0.0/16128.41.0.0/16128.41.0.0/18128.86.0.0/17128.86.128.0/17128.98.0.0/16128.98.0.0/22128.98.144.0/24128.98.224.0/21128.98.224.0/22128.98.226.0/24128.98.228.0/22128.98.232.0/21128.98.80.0/20128.98.80.0/22128.98.84.0/22129.11.0.0/16129.12.0.0/16129.169.0.0/16129.215.0.0/16129.234.0.0/16129.31.0.0/16129.67.0.0/16130.117.8.0/24130.159.0.0/16130.209.0.0/16130.246.0.0/16130.88.0.0/16131.111.0.0/16131.176.246.0/24131.227.0.0/16131.231.0.0/16131.251.0.0/16132.174.0.0/16132.174.181.0/24132.174.182.0/24132.174.41.0/24134.151.0.0/16134.219.0.0/16134.220.0.0/16134.225.0.0/16134.226.0.0/16134.36.0.0/16134.83.0.0/16135.196.0.0/16136.148.104.0/21136.148.112.0/20136.148.224.0/19136.148.32.0/19136.156.0.0/19136.156.160.0/21136.156.176.0/21136.156.88.0/22136.201.0.0/16136.206.0.0/16137.108.0.0/16137.195.0.0/16137.205.0.0/16137.221.223.0/24137.222.0.0/16137.253.0.0/16137.43.0.0/16137.44.0.0/18137.44.128.0/19137.44.160.0/19137.44.192.0/19137.44.224.0/19137.50.0.0/16137.73.0.0/16138.124.224.0/22138.124.236.0/22138.250.0.0/15138.250.0.0/16138.251.0.0/16138.253.0.0/16138.37.0.0/16138.38.0.0/16138.40.0.0/16139.133.0.0/16139.143.0.0/16139.153.0.0/16139.166.0.0/16139.184.0.0/16139.184.0.0/17139.184.128.0/17139.222.0.0/16140.203.0.0/16140.97.0.0/16141.0.32.0/19141.163.0.0/18141.163.64.0/19141.163.96.0/20141.170.100.0/23141.170.64.0/19141.170.96.0/22141.241.0.0/16143.117.0.0/16143.167.0.0/16143.210.0.0/16143.234.0.0/16143.239.0.0/16143.52.0.0/15144.124.0.0/17144.173.0.0/16144.32.0.0/16144.82.0.0/16145.116.216.0/24146.169.0.0/16146.176.0.0/16146.179.0.0/16146.191.0.0/16146.227.0.0/16146.80.0.0/16146.87.0.0/16146.97.0.0/16147.143.0.0/16147.188.0.0/16147.197.0.0/16147.252.0.0/16148.197.0.0/16148.79.0.0/16148.88.0.0/16149.153.0.0/16149.155.0.0/16149.157.0.0/16149.170.0.0/21149.170.104.0/21149.170.112.0/21149.170.120.0/21149.170.128.0/21149.170.136.0/21149.170.16.0/21149.170.160.0/21149.170.184.0/21149.170.192.0/21149.170.208.0/21149.170.216.0/21149.170.24.0/21149.170.240.0/21149.170.248.0/21149.170.32.0/21149.170.40.0/21149.170.48.0/21149.170.64.0/21149.170.72.0/21149.170.8.0/21149.170.80.0/21149.170.88.0/21149.170.96.0/21150.204.0.0/16150.237.0.0/20151.133.0.0/16151.133.0.0/20151.133.128.0/18151.133.16.0/21151.133.192.0/19151.133.199.0/24151.133.224.0/21151.133.232.0/22151.133.236.0/24151.133.237.0/24151.133.238.0/23151.133.24.0/21151.133.240.0/20151.133.31.0/24151.133.32.0/21151.133.34.0/24151.133.40.0/21151.133.48.0/20151.133.64.0/18152.105.0.0/16152.71.0.0/16152.78.0.0/16154.59.124.0/23155.198.0.0/16155.245.0.0/16157.140.0.0/16157.190.0.0/16157.228.0.0/20158.125.0.0/16158.143.0.0/16158.223.0.0/16158.94.0.0/19158.94.224.0/19159.86.0.0/16159.86.128.0/18160.5.248.0/21160.6.0.0/16160.9.0.0/16161.112.0.0/16161.23.0.0/16161.73.0.0/16161.74.0.0/16161.76.0.0/16163.1.0.0/16163.119.0.0/17163.160.0.0/16163.167.0.0/16164.11.0.0/16171.33.192.0/21171.33.192.0/24171.33.193.0/24171.33.194.0/24171.33.195.0/24171.33.196.0/24171.33.197.0/24171.33.198.0/24171.33.199.0/24171.33.200.0/21171.33.200.0/24171.33.201.0/24171.33.202.0/24171.33.203.0/24171.33.204.0/24171.33.205.0/24171.33.206.0/24171.33.207.0/24171.33.208.0/21171.33.208.0/24171.33.209.0/24171.33.210.0/24171.33.211.0/24171.33.212.0/24171.33.213.0/24171.33.214.0/24171.33.215.0/24171.33.216.0/21176.97.158.0/24185.1.69.0/24185.100.88.0/22185.102.12.0/24185.103.220.0/22185.167.176.0/24185.17.96.0/22185.177.200.0/22185.192.228.0/22185.198.132.0/24185.213.192.0/24185.22.4.0/22185.25.220.0/22185.255.108.0/22185.3.72.0/22185.30.10.0/23185.30.8.0/22185.30.8.0/23185.30.9.0/24185.49.36.0/22185.6.36.0/22185.6.39.0/24185.80.132.0/22185.80.188.0/22185.80.188.0/24185.80.189.0/24185.80.190.0/24185.80.191.0/24192.100.135.0/24192.100.136.0/23192.100.136.0/24192.100.137.0/24192.100.138.0/24192.100.139.0/24192.100.140.0/24192.100.154.0/24192.100.78.0/24192.107.11.0/24192.107.13.0/24192.107.168.0/24192.107.178.0/24192.108.120.0/24192.12.1.0/24192.12.72.0/24192.124.46.0/24192.133.244.0/24192.135.231.0/24192.135.232.0/24192.135.233.0/24192.135.234.0/24192.138.192.0/24192.146.136.0/24192.147.23.0/24192.149.111.0/24192.149.119.0/24192.149.120.0/24192.149.238.0/24192.150.177.0/24192.150.178.0/23192.150.180.0/22192.150.184.0/24192.153.213.0/24192.156.162.0/24192.156.252.0/24192.160.177.0/24192.160.178.0/23192.171.128.0/18192.171.192.0/21192.173.1.0/24192.173.128.0/21192.173.2.0/23192.173.4.0/24192.174.68.0/24192.175.48.0/24192.18.195.0/24192.188.124.0/24192.188.157.0/24192.188.158.0/24192.188.63.0/24192.188.64.0/24192.190.201.0/24192.190.202.0/24192.195.1.0/24192.195.105.0/24192.195.116.0/23192.195.118.0/24192.195.42.0/23192.195.42.0/24192.195.43.0/24192.31.196.0/24192.33.16.0/24192.35.94.0/24192.41.103.0/24192.41.104.0/21192.41.112.0/20192.41.128.0/22192.42.100.0/24192.5.28.0/24192.5.29.0/24192.5.30.0/24192.65.28.0/23192.67.43.0/24192.68.153.0/24192.76.16.0/20192.76.243.0/24192.76.32.0/22192.76.6.0/23192.76.8.0/21192.82.153.0/24192.84.212.0/24192.84.5.0/24192.84.75.0/24192.84.76.0/22192.84.80.0/22192.84.84.0/24192.88.9.0/24192.94.235.0/24193.0.255.0/24193.1.0.0/16193.1.128.0/19193.1.160.0/20193.105.13.0/24193.105.48.0/24193.107.116.0/22193.130.15.0/24193.133.28.0/23193.138.86.0/24193.142.216.0/24193.164.96.0/19193.200.145.0/24193.219.110.0/24193.227.117.0/24193.238.164.0/22193.240.184.0/24193.242.111.0/24193.25.116.0/23193.32.22.0/24193.32.6.0/24193.32.7.0/24193.33.72.0/23193.35.144.0/24193.35.232.0/21193.37.225.0/24193.37.240.0/21193.38.143.0/24193.39.172.0/22193.39.212.0/24193.39.80.0/21193.46.128.0/24193.46.129.0/24193.46.130.0/24193.46.131.0/24193.46.132.0/24193.46.133.0/24193.46.134.0/24193.46.135.0/24193.60.0.0/14194.0.182.0/24194.0.24.0/23194.0.24.0/24194.0.25.0/24194.0.26.0/24194.126.247.0/24194.140.226.0/24194.145.222.0/23194.150.176.0/23194.150.176.0/24194.154.0.0/20194.154.16.0/21194.155.12.0/22194.155.16.0/22194.155.20.0/23194.165.12.0/23194.169.32.0/20194.213.28.0/24194.238.32.0/21194.238.48.0/21194.238.60.0/22194.238.64.0/21194.246.79.0/24194.26.206.0/24194.29.216.0/21194.32.218.0/23194.32.32.0/20194.32.36.0/24194.32.41.0/24194.32.69.0/24194.34.10.0/24194.34.112.0/24194.34.113.0/24194.34.138.0/24194.34.8.0/23194.35.186.0/24194.35.192.0/19194.35.241.0/24194.35.93.0/24194.36.1.0/24194.36.121.0/24194.36.152.0/21194.36.2.0/23194.36.8.0/22194.42.224.0/19194.50.187.0/24194.56.252.0/23194.59.0.0/23194.60.218.0/24194.61.176.0/20194.61.176.0/22194.61.176.0/24194.61.178.0/24194.61.180.0/22194.61.180.0/23194.61.180.0/24194.61.181.0/24194.61.183.0/24194.61.184.0/21194.61.184.0/22194.61.184.0/24194.61.188.0/22194.61.191.0/24194.61.79.0/24194.61.92.0/23194.61.92.0/24194.61.93.0/24194.61.94.0/24194.62.24.0/22194.66.0.0/16194.8.54.0/24194.80.0.0/14194.83.162.0/24194.88.240.0/23195.10.221.0/24195.104.182.0/24195.191.66.0/23195.194.0.0/15195.225.188.0/22195.246.108.0/23195.62.8.0/23195.88.20.0/23198.137.189.0/24198.137.190.0/24198.137.191.0/24198.187.191.0/24199.164.217.0/242.56.196.0/222.57.200.0/222.57.200.0/24204.152.100.0/22204.152.100.0/24204.152.101.0/24204.152.102.0/24204.152.103.0/24204.152.104.0/24204.17.227.0/24205.160.168.0/23205.160.170.0/24206.107.40.0/21206.107.40.0/24206.107.41.0/24206.107.42.0/24206.107.43.0/24206.107.44.0/24206.107.45.0/24206.107.46.0/24206.107.47.0/24212.121.0.0/19212.121.192.0/19212.134.79.0/24212.2.0.0/19212.219.0.0/16212.44.0.0/18213.160.96.0/19213.166.17.0/24213.166.18.0/24213.178.132.0/22213.18.248.0/21213.232.79.0/24213.235.0.0/18217.145.117.0/24217.145.118.0/23217.145.126.0/23217.177.16.0/20217.177.36.0/22217.177.56.0/21217.177.64.0/21217.177.76.0/22217.177.88.0/21217.179.0.0/22217.179.112.0/21217.179.120.0/22217.179.16.0/20217.179.192.0/20217.179.208.0/21217.179.216.0/22217.179.224.0/22217.179.232.0/21217.179.240.0/20217.179.32.0/20217.179.52.0/22217.179.60.0/22217.179.64.0/21217.179.76.0/22217.179.8.0/21217.179.84.0/22217.179.92.0/22217.179.96.0/20217.180.24.0/21217.180.32.0/22217.180.4.0/22217.180.48.0/22217.180.8.0/22217.181.0.0/18217.23.224.0/20217.30.24.0/21217.65.150.0/2437.1.152.0/2138.117.94.0/2444.155.0.0/1644.32.0.0/2145.144.8.0/2245.88.80.0/2346.254.200.0/2146.34.0.0/1946.60.128.0/1746.60.252.0/2346.60.254.0/235.149.8.0/215.150.0.0/215.150.100.0/245.150.101.0/245.150.102.0/245.150.103.0/245.150.104.0/245.150.105.0/245.150.106.0/245.150.107.0/245.150.108.0/245.150.109.0/245.150.110.0/245.150.111.0/245.150.112.0/245.150.113.0/245.150.114.0/245.150.115.0/245.150.116.0/245.150.117.0/245.150.118.0/245.150.119.0/245.150.120.0/245.150.121.0/245.150.122.0/245.150.123.0/245.150.124.0/225.150.124.0/245.150.125.0/245.150.126.0/245.150.127.0/245.150.16.0/245.150.17.0/245.150.18.0/245.150.19.0/245.150.20.0/245.150.21.0/245.150.22.0/245.150.23.0/245.150.24.0/245.150.25.0/245.150.63.0/245.150.64.0/245.150.65.0/245.150.66.0/245.150.67.0/245.150.68.0/245.150.69.0/245.150.70.0/245.150.71.0/245.150.72.0/245.150.73.0/245.150.74.0/245.150.75.0/245.150.76.0/245.150.77.0/245.150.8.0/215.150.80.0/205.150.96.0/195.150.96.0/245.150.97.0/245.150.98.0/245.150.99.0/245.158.88.0/215.255.48.0/215.83.96.0/2162.171.192.0/1962.171.224.0/2262.171.252.0/2262.84.224.0/1977.241.76.0/2277.72.72.0/2177.72.72.0/2277.72.72.0/2377.72.72.0/2477.72.73.0/2477.72.74.0/2377.72.74.0/2477.72.75.0/2477.72.76.0/2377.72.76.0/2477.72.77.0/2477.72.78.0/2377.72.78.0/2477.72.79.0/2477.87.24.0/2178.40.232.0/2179.121.128.0/1780.249.48.0/2080.249.48.0/2280.249.52.0/2280.249.56.0/2480.249.57.0/2480.249.58.0/2480.249.59.0/2480.249.60.0/2281.208.128.0/2081.87.0.0/1682.138.192.0/1882.203.113.0/2483.138.32.0/2185.119.224.0/2185.119.229.0/2485.12.124.0/2485.12.125.0/2485.12.64.0/2485.12.65.0/2485.12.80.0/2485.158.64.0/2185.31.136.0/2185.31.137.0/2485.31.143.0/2487.32.0.0/1289.207.208.0/2189.251.192.0/2091.123.224.0/2091.193.188.0/2291.194.152.0/2391.194.220.0/2391.196.28.0/2291.198.180.0/2491.209.34.0/2491.213.110.0/2491.216.181.0/2491.216.246.0/2491.227.178.0/2491.231.46.0/2491.231.90.0/2391.234.214.0/2491.236.56.0/2491.237.67.0/2491.240.2.0/2391.240.24.0/2491.244.229.0/2492.245.224.0/1992.42.56.0/2192.43.64.0/2192.54.128.0/1893.152.0.0/1793.157.216.0/2193.93.216.0/2194.101.172.0/2294.185.128.0/1794.198.172.0/2295.130.144.0/2195.152.208.0/2195.152.216.0/2295.152.220.0/2395.152.227.0/2495.152.228.0/2295.152.232.0/2195.152.240.0/2095.177.0.0/17
66 IPv6 prefixes
2001:4:112::/482001:630::/322001:678:20::/482001:678:24::/482001:678:2dc::/482001:678:718::/482001:67c:10b8::/482001:67c:10e0::/482001:67c:1bc::/482001:67c:f6c::/482001:770:98::/482001:770::/322001:7f8:18::/482401:1680::/322620:4f:8000::/482a01:4b0:1::/482a01:4b0:2::/482a01:4b0::/322a01:4b0::/482a01:56c0:4033::/642a01:56c0::/322a01:56c1:10::/442a01:56c1:300::/402a01:8940::/322a01:98::/322a01:9e60::/322a02:2b08::/322a02:6c00::/372a02:850:ffe0::/482a02:850:ffe1::/482a02:850:ffe2::/482a02:850:ffe3::/482a02:850:ffe4::/482a02:850:ffe5::/482a02:850:ffe6::/482a02:850:ffe7::/482a02:850:ffff::/482a02:af40::/302a02:af44::/302a02:fb0::/322a03:aba0::/292a03:ac0::/292a03:ac0::/322a03:ac1::/322a03:c500::/322a04:2b00:14cc::/482a04:2b00:14dd::/482a04:2b00:14ee::/482a05:7d00::/292a05:7f00:188::/482a05:7f00:189::/482a05:7f00:190::/482a05:7f00:191::/482a05:7f00::/292a05:b400::/322a09:9180:fd::/482a09:9180:ff::/482a09:c8c0::/292a09:de40::/322a0a:200::/292a0b:3b40::/292a0b:3b44:0:8000::/492a0b:3b44::/482a0b:8e00:1::/482a0b:8e00::/482a0c:5bc0::/29
Registries

Each registry’s copy

RIPE52 membersJANET and transit ASes to announce to US peers
Maintained byJIPS-NOSC
Last modified2026-09-28T06:41:29Z
MembersAS786 AS7 AS4373 AS5503 AS8546 AS8190 AS15770 AS211067 AS24775 AS25343 AS29212 AS29626 AS31256 AS33967 AS35299 AS35832 AS44110 AS44369 AS44403 AS44442 AS49247 AS49728 AS51704 AS51946 AS52215 AS56670 AS56929 AS57377 AS59581 AS60187 AS60282 AS133084 AS196902 AS198032 AS198222 AS198863 AS198864 AS199131 AS199713 AS-LGFLPLUS AS43198 AS5552 AS201773 AS202012 AS202575 AS207039 AS201261 AS206490 AS209198 AS209237 AS211775 AS-HEANET
mbrs-by-refN
Used by

Sets that include AS-JANETUS

AS1299:AS-TWELVE99-EU-V4AS1299:AS-TWELVE99-EU-V6
Tools

Check AS-JANETUS live

IRR API, with prefixes