ResearchIRR · RIPE

AS29226:AS-MASTERTEL_CYBERFIRST MASTERTEL guard reroute CYBERFIRST

An as-set registered in RIPE, maintained by MASTERTEL-MNT. It names 13 ASes and 2 sets directly; followed all the way down, it reaches 19 ASes through 2 nested sets.

Every AS it reaches

What a filter built from AS29226:AS-MASTERTEL_CYBERFIRST would let in: 19 ASes.

Show the 19 ASes

What AS29226:AS-MASTERTEL_CYBERFIRST covers

Every route object in the IRR whose origin is one of the 19 ASes it reaches: the prefixes a filter built from AS29226:AS-MASTERTEL_CYBERFIRST (with bgpq4, say) would allow. 186 IPv4 and 12 IPv6. Every one is in the IRR API.

186 IPv4 prefixes
109.73.32.0/20109.73.45.0/24130.49.128.0/24130.49.129.0/24130.49.140.0/24130.49.143.0/24130.49.146.0/24130.49.153.0/24130.49.156.0/22130.49.159.0/24138.16.152.0/24138.16.153.0/24138.16.154.0/24138.16.155.0/24138.16.156.0/22138.16.224.0/24138.16.225.0/24138.16.226.0/24138.16.227.0/24149.126.168.0/21153.80.184.0/24153.80.185.0/24153.80.245.0/24153.80.246.0/24153.80.247.0/24153.80.250.0/24153.80.251.0/24155.212.245.0/24155.212.246.0/24155.212.247.0/24157.22.152.0/22157.22.172.0/24157.22.173.0/24157.22.174.0/24157.22.175.0/24157.22.230.0/24157.22.231.0/24157.22.252.0/24157.22.253.0/24168.113.156.0/22168.113.156.0/24168.113.157.0/24168.113.158.0/24168.113.159.0/24168.113.168.0/24168.113.169.0/24168.113.170.0/24168.113.171.0/24168.113.172.0/24168.113.173.0/24168.113.208.0/22168.113.208.0/24168.113.209.0/24168.113.210.0/24168.113.211.0/24170.168.11.0/24170.168.65.0/24178.238.112.0/20185.11.196.0/24185.11.199.0/24185.115.92.0/22185.169.152.0/24185.198.152.0/24185.219.41.0/24185.219.43.0/24185.231.56.0/24185.233.185.0/24185.239.50.0/24185.239.51.0/24185.240.103.0/24185.244.174.0/24185.244.51.0/24185.250.44.0/24185.250.46.0/24185.250.47.0/24185.30.16.0/22185.30.16.0/24185.30.17.0/24185.30.18.0/24185.30.19.0/24193.151.227.0/24193.187.96.0/24193.232.29.0/24193.232.59.0/24193.246.167.0/24193.33.208.0/24194.1.240.0/22194.1.240.0/24194.1.241.0/24194.1.242.0/24194.1.243.0/24194.153.112.0/24194.247.128.0/19194.247.132.0/24194.247.136.0/24194.247.142.0/24194.247.142.128/25194.247.143.0/24194.247.144.0/24194.247.152.0/24194.247.154.0/24194.247.155.0/24194.5.78.0/24194.5.79.0/24195.133.216.0/22195.133.218.0/24195.133.219.0/24195.133.240.0/20195.133.241.0/24195.133.242.0/24195.133.243.0/24195.133.244.0/24195.133.245.0/24195.133.246.0/24195.133.247.0/24195.133.248.0/24195.133.250.0/24195.133.251.0/24195.133.252.0/24195.133.253.0/24195.133.254.0/24195.133.255.0/24195.133.4.0/24195.191.36.0/23195.209.208.0/20195.85.206.0/24195.93.252.0/24212.24.115.0/24212.5.224.0/19212.5.224.0/22212.5.226.0/24212.5.227.0/24212.5.255.0/24212.8.236.0/24212.8.238.0/23212.8.238.0/24212.8.239.0/24217.144.168.0/22217.144.171.0/24217.171.146.0/24217.67.176.0/2031.41.246.0/2431.44.80.0/2037.140.241.0/2437.72.143.0/2445.128.204.0/2446.174.239.0/245.22.157.0/245.253.62.0/245.35.124.0/245.35.125.0/245.35.126.0/245.35.127.0/2462.233.47.0/2477.75.168.0/2177.75.168.0/2479.133.181.0/2479.133.182.0/2479.133.183.0/2479.171.172.0/2379.171.174.0/2381.94.36.0/2481.94.38.0/2481.94.41.0/2481.94.43.0/2483.217.24.0/2383.217.24.0/2483.217.25.0/2483.69.192.0/1989.106.168.0/2189.107.200.0/2189.169.56.0/2189.191.225.0/2489.208.192.0/2491.200.84.0/2491.209.122.0/2491.209.80.0/2491.223.108.0/2491.226.186.0/2491.227.169.0/2491.228.148.0/2491.229.117.0/2491.240.172.0/2492.119.187.0/2494.141.104.0/2294.154.11.0/24
12 IPv6 prefixes

Each registry’s copy

RIPE15 membersMASTERTEL guard reroute CYBERFIRST
Maintained byMASTERTEL-MNT
Last modified2026-09-29T08:37:59Z
MembersAS29226 AS34706 AS41184 AS42972 AS48349 AS50341 AS56793 AS57898 AS198705 AS202760 AS205567 AS211183 AS215997 AS-HARVESTR-CLI AS-RTSNET
mbrs-by-refN

Sets that include AS29226:AS-MASTERTEL_CYBERFIRST

Check AS29226:AS-MASTERTEL_CYBERFIRST live