
213877 U1DS-AS, GB
Adjacency: 1 Upstream: 1 Downstream: 0
Upstream Adjacent AS list
AS49418 AS-NETSHIELD, GB
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 6635 AS213877 ORIGIN Originate: 21504 /17.61 Transit: 0 /0.00 U1DS-AS, GB
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 2074 AS213877 U1DS-AS, GB 84 52 24 56 28 33.33% Prefix AS Path Aggregation Suggestion 2.26.112.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 2.26.112.0/24 (4777 2516 1299 62255 49418 213877) and 2.26.113.0/24 (4777 2516 1299 62255 49418 213877) 2.26.112.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 2.26.113.0/24 (4777 2516 1299 62255 49418 213877) 2.26.113.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 2.26.112.0/24 (4777 2516 1299 62255 49418 213877) 2.26.114.0/24 4777 2516 1299 62255 49418 213877 2.26.115.0/24 4777 2516 6762 30823 49418 213877 2.27.44.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 2.27.44.0/24 (4777 2516 1299 62255 49418 213877) and 2.27.45.0/24 (4777 2516 1299 62255 49418 213877) 2.27.44.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 2.27.45.0/24 (4777 2516 1299 62255 49418 213877) 2.27.45.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 2.27.44.0/24 (4777 2516 1299 62255 49418 213877) 2.27.46.0/24 4777 2516 1299 62255 49418 213877 2.27.47.0/24 4777 2497 1299 30823 49418 213877 64.188.73.0/24 4777 2516 6762 30823 49418 213877 64.188.75.0/24 4777 2516 1299 62255 49418 213877 64.188.92.0/24 4777 2516 1299 62255 49418 213877 64.188.93.0/24 4777 2516 6762 30823 49418 213877 64.188.94.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 64.188.94.0/24 (4777 2516 1299 62255 49418 213877) and 64.188.95.0/24 (4777 2516 1299 62255 49418 213877) 64.188.94.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 64.188.95.0/24 (4777 2516 1299 62255 49418 213877) 64.188.95.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 64.188.94.0/24 (4777 2516 1299 62255 49418 213877) 64.188.96.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 64.188.96.0/24 (4777 2516 1299 62255 49418 213877) and 64.188.97.0/24 (4777 2516 1299 62255 49418 213877) 64.188.96.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 64.188.97.0/24 (4777 2516 1299 62255 49418 213877) 64.188.97.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 64.188.96.0/24 (4777 2516 1299 62255 49418 213877) 64.188.112.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 64.188.112.0/24 (4777 2516 1299 62255 49418 213877) and 64.188.113.0/24 (4777 2516 1299 62255 49418 213877) 64.188.112.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 64.188.113.0/24 (4777 2516 1299 62255 49418 213877) 64.188.113.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 64.188.112.0/24 (4777 2516 1299 62255 49418 213877) 64.188.116.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 64.188.116.0/24 (4777 2516 1299 62255 49418 213877) and 64.188.117.0/24 (4777 2516 1299 62255 49418 213877) 64.188.116.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 64.188.117.0/24 (4777 2516 1299 62255 49418 213877) 64.188.117.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 64.188.116.0/24 (4777 2516 1299 62255 49418 213877) 64.188.124.0/24 4777 2516 1299 62255 49418 213877 64.188.125.0/24 4777 2516 6762 30823 49418 213877 64.188.126.0/24 4777 2516 1299 62255 49418 213877 77.91.84.0/23 4777 2497 1299 30823 49418 213877 + Announce - aggregate of 77.91.84.0/24 (4777 2497 1299 30823 49418 213877) and 77.91.85.0/24 (4777 2497 1299 30823 49418 213877) 77.91.84.0/24 4777 2497 1299 30823 49418 213877 - Withdrawn - aggregated with 77.91.85.0/24 (4777 2497 1299 30823 49418 213877) 77.91.85.0/24 4777 2497 1299 30823 49418 213877 - Withdrawn - aggregated with 77.91.84.0/24 (4777 2497 1299 30823 49418 213877) 77.91.86.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 77.91.86.0/24 (4777 2516 1299 62255 49418 213877) and 77.91.87.0/24 (4777 2516 1299 62255 49418 213877) 77.91.86.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 77.91.87.0/24 (4777 2516 1299 62255 49418 213877) 77.91.87.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 77.91.86.0/24 (4777 2516 1299 62255 49418 213877) 77.239.100.0/22 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 77.239.100.0/23 (4777 2516 1299 62255 49418 213877) and 77.239.102.0/23 (4777 2516 1299 62255 49418 213877) 77.239.100.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 77.239.101.0/24 (4777 2516 1299 62255 49418 213877) 77.239.101.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 77.239.100.0/24 (4777 2516 1299 62255 49418 213877) 77.239.102.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 77.239.103.0/24 (4777 2516 1299 62255 49418 213877) 77.239.103.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 77.239.102.0/24 (4777 2516 1299 62255 49418 213877) 77.239.104.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 77.239.104.0/24 (4777 2516 1299 62255 49418 213877) and 77.239.105.0/24 (4777 2516 1299 62255 49418 213877) 77.239.104.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 77.239.105.0/24 (4777 2516 1299 62255 49418 213877) 77.239.105.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 77.239.104.0/24 (4777 2516 1299 62255 49418 213877) 77.239.122.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 77.239.122.0/24 (4777 2516 1299 62255 49418 213877) and 77.239.123.0/24 (4777 2516 1299 62255 49418 213877) 77.239.122.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 77.239.123.0/24 (4777 2516 1299 62255 49418 213877) 77.239.123.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 77.239.122.0/24 (4777 2516 1299 62255 49418 213877) 144.31.26.0/24 4777 2516 1299 62255 49418 213877 144.31.27.0/24 4777 2516 6762 30823 49418 213877 144.31.64.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 144.31.64.0/24 (4777 2516 1299 62255 49418 213877) and 144.31.65.0/24 (4777 2516 1299 62255 49418 213877) 144.31.64.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.65.0/24 (4777 2516 1299 62255 49418 213877) 144.31.65.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.64.0/24 (4777 2516 1299 62255 49418 213877) 144.31.66.0/23 4777 2516 6762 30823 49418 213877 + Announce - aggregate of 144.31.66.0/24 (4777 2516 6762 30823 49418 213877) and 144.31.67.0/24 (4777 2516 6762 30823 49418 213877) 144.31.66.0/24 4777 2516 6762 30823 49418 213877 - Withdrawn - aggregated with 144.31.67.0/24 (4777 2516 6762 30823 49418 213877) 144.31.67.0/24 4777 2516 6762 30823 49418 213877 - Withdrawn - aggregated with 144.31.66.0/24 (4777 2516 6762 30823 49418 213877) 144.31.68.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 144.31.68.0/24 (4777 2516 1299 62255 49418 213877) and 144.31.69.0/24 (4777 2516 1299 62255 49418 213877) 144.31.68.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.69.0/24 (4777 2516 1299 62255 49418 213877) 144.31.69.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.68.0/24 (4777 2516 1299 62255 49418 213877) 144.31.70.0/24 4777 2516 1299 62255 49418 213877 144.31.71.0/24 4777 2516 6762 30823 49418 213877 144.31.72.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 144.31.72.0/24 (4777 2516 1299 62255 49418 213877) and 144.31.73.0/24 (4777 2516 1299 62255 49418 213877) 144.31.72.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.73.0/24 (4777 2516 1299 62255 49418 213877) 144.31.73.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.72.0/24 (4777 2516 1299 62255 49418 213877) 144.31.74.0/24 4777 2516 1299 62255 49418 213877 144.31.75.0/24 4777 2516 6762 30823 49418 213877 144.31.76.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 144.31.76.0/24 (4777 2516 1299 62255 49418 213877) and 144.31.77.0/24 (4777 2516 1299 62255 49418 213877) 144.31.76.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.77.0/24 (4777 2516 1299 62255 49418 213877) 144.31.77.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.76.0/24 (4777 2516 1299 62255 49418 213877) 144.31.78.0/24 4777 2516 1299 62255 49418 213877 144.31.79.0/24 4777 2516 6762 30823 49418 213877 144.31.86.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 144.31.86.0/24 (4777 2516 1299 62255 49418 213877) and 144.31.87.0/24 (4777 2516 1299 62255 49418 213877) 144.31.86.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.87.0/24 (4777 2516 1299 62255 49418 213877) 144.31.87.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.86.0/24 (4777 2516 1299 62255 49418 213877) 144.31.89.0/24 4777 2516 1299 62255 49418 213877 144.31.104.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 144.31.104.0/24 (4777 2516 1299 62255 49418 213877) and 144.31.105.0/24 (4777 2516 1299 62255 49418 213877) 144.31.104.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.105.0/24 (4777 2516 1299 62255 49418 213877) 144.31.105.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.104.0/24 (4777 2516 1299 62255 49418 213877) 144.31.120.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 144.31.120.0/24 (4777 2516 1299 62255 49418 213877) and 144.31.121.0/24 (4777 2516 1299 62255 49418 213877) 144.31.120.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.121.0/24 (4777 2516 1299 62255 49418 213877) 144.31.121.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.120.0/24 (4777 2516 1299 62255 49418 213877) 144.31.137.0/24 4777 2516 1299 62255 49418 213877 144.31.192.0/24 4608 7575 2914 30823 49418 49418 49418 49418 213877 144.31.193.0/24 4777 2516 1299 62255 49418 213877 144.31.198.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 144.31.198.0/24 (4777 2516 1299 62255 49418 213877) and 144.31.199.0/24 (4777 2516 1299 62255 49418 213877) 144.31.198.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.199.0/24 (4777 2516 1299 62255 49418 213877) 144.31.199.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.198.0/24 (4777 2516 1299 62255 49418 213877) 144.31.226.0/24 4777 2497 1273 31500 31500 49418 213877 144.31.227.0/24 4777 2516 1299 62255 49418 213877 144.31.228.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 144.31.228.0/24 (4777 2516 1299 62255 49418 213877) and 144.31.229.0/24 (4777 2516 1299 62255 49418 213877) 144.31.228.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.229.0/24 (4777 2516 1299 62255 49418 213877) 144.31.229.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.228.0/24 (4777 2516 1299 62255 49418 213877) 144.31.244.0/24 4777 2516 1299 62255 49418 213877 144.31.245.0/24 4777 2516 6762 30823 49418 213877 144.31.246.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 144.31.246.0/24 (4777 2516 1299 62255 49418 213877) and 144.31.247.0/24 (4777 2516 1299 62255 49418 213877) 144.31.246.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.247.0/24 (4777 2516 1299 62255 49418 213877) 144.31.247.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.246.0/24 (4777 2516 1299 62255 49418 213877) 144.31.252.0/22 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 144.31.252.0/23 (4777 2516 1299 62255 49418 213877) and 144.31.254.0/23 (4777 2516 1299 62255 49418 213877) 144.31.252.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.253.0/24 (4777 2516 1299 62255 49418 213877) 144.31.253.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.252.0/24 (4777 2516 1299 62255 49418 213877) 144.31.254.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.255.0/24 (4777 2516 1299 62255 49418 213877) 144.31.255.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 144.31.254.0/24 (4777 2516 1299 62255 49418 213877) 150.241.86.0/24 4777 2497 1299 30823 49418 213877 150.241.105.0/24 4777 2516 1299 62255 49418 213877 150.241.108.0/24 4777 2516 1299 62255 49418 213877 185.184.122.0/23 4777 2516 1299 62255 49418 213877 + Announce - aggregate of 185.184.122.0/24 (4777 2516 1299 62255 49418 213877) and 185.184.123.0/24 (4777 2516 1299 62255 49418 213877) 185.184.122.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 185.184.123.0/24 (4777 2516 1299 62255 49418 213877) 185.184.123.0/24 4777 2516 1299 62255 49418 213877 - Withdrawn - aggregated with 185.184.122.0/24 (4777 2516 1299 62255 49418 213877) 185.207.133.0/24 4777 2516 1299 62255 49418 213877 213.21.241.0/24 4777 2516 1299 62255 49418 213877
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS213877 83 More Specifics 84 Total Advertisements U1DS-AS, GB
2.26.112.0/24 2.26.0.0/15
2.26.113.0/24 2.26.0.0/15
2.26.114.0/24 2.26.0.0/15
2.26.115.0/24 2.26.0.0/15
2.27.44.0/24 2.26.0.0/15
2.27.45.0/24 2.26.0.0/15
2.27.46.0/24 2.26.0.0/15
2.27.47.0/24 2.26.0.0/15
64.188.73.0/24 64.188.64.0/18
64.188.75.0/24 64.188.64.0/18
64.188.92.0/24 64.188.64.0/18
64.188.93.0/24 64.188.64.0/18
64.188.94.0/24 64.188.64.0/18
64.188.95.0/24 64.188.64.0/18
64.188.96.0/24 64.188.64.0/18
64.188.97.0/24 64.188.64.0/18
64.188.112.0/24 64.188.64.0/18
64.188.113.0/24 64.188.64.0/18
64.188.116.0/24 64.188.64.0/18
64.188.117.0/24 64.188.64.0/18
64.188.124.0/24 64.188.64.0/18
64.188.125.0/24 64.188.64.0/18
64.188.126.0/24 64.188.64.0/18
77.91.84.0/24 77.91.80.0/20
77.91.85.0/24 77.91.80.0/20
77.91.86.0/24 77.91.80.0/20
77.91.87.0/24 77.91.80.0/20
77.239.100.0/24 77.239.96.0/19
77.239.101.0/24 77.239.96.0/19
77.239.102.0/24 77.239.96.0/19
77.239.103.0/24 77.239.96.0/19
77.239.104.0/24 77.239.96.0/19
77.239.105.0/24 77.239.96.0/19
77.239.122.0/24 77.239.96.0/19
77.239.123.0/24 77.239.96.0/19
144.31.26.0/24 144.31.0.0/16
144.31.27.0/24 144.31.0.0/16
144.31.64.0/24 144.31.0.0/16
144.31.65.0/24 144.31.0.0/16
144.31.66.0/24 144.31.0.0/16
144.31.67.0/24 144.31.0.0/16
144.31.68.0/24 144.31.0.0/16
144.31.69.0/24 144.31.0.0/16
144.31.70.0/24 144.31.0.0/16
144.31.71.0/24 144.31.0.0/16
144.31.72.0/24 144.31.0.0/16
144.31.73.0/24 144.31.0.0/16
144.31.74.0/24 144.31.0.0/16
144.31.75.0/24 144.31.0.0/16
144.31.76.0/24 144.31.0.0/16
144.31.77.0/24 144.31.0.0/16
144.31.78.0/24 144.31.0.0/16
144.31.79.0/24 144.31.0.0/16
144.31.86.0/24 144.31.0.0/16
144.31.87.0/24 144.31.0.0/16
144.31.89.0/24 144.31.0.0/16
144.31.104.0/24 144.31.0.0/16
144.31.105.0/24 144.31.0.0/16
144.31.120.0/24 144.31.0.0/16
144.31.121.0/24 144.31.0.0/16
144.31.137.0/24 144.31.0.0/16
144.31.192.0/24 144.31.0.0/16
144.31.193.0/24 144.31.0.0/16
144.31.198.0/24 144.31.0.0/16
144.31.199.0/24 144.31.0.0/16
144.31.226.0/24 144.31.0.0/16
144.31.227.0/24 144.31.0.0/16
144.31.228.0/24 144.31.0.0/16
144.31.229.0/24 144.31.0.0/16
144.31.244.0/24 144.31.0.0/16
144.31.245.0/24 144.31.0.0/16
144.31.246.0/24 144.31.0.0/16
144.31.247.0/24 144.31.0.0/16
144.31.252.0/24 144.31.0.0/16
144.31.253.0/24 144.31.0.0/16
144.31.254.0/24 144.31.0.0/16
144.31.255.0/24 144.31.0.0/16
150.241.86.0/24 150.241.64.0/18
150.241.105.0/24 150.241.64.0/18
150.241.108.0/24 150.241.64.0/18
185.184.122.0/24 185.184.120.0/22
185.184.123.0/24 185.184.120.0/22
213.21.241.0/24 213.21.192.0/18
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 2.26.112.0/24 Announced
+ 2.26.113.0/24 Announced
+ 2.26.114.0/24 Announced
+ 2.26.115.0/24 Announced
whois: 402332
IANA has recorded AS213877 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS213877\n % This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html
% Note: this output has been filtered.
% Information related to 'AS208189 - AS214345'
as-block: AS208189 - AS214345
descr: RIPE NCC ASN block
remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by: RIPE-NCC-HM-MNT
created: 2026-02-12T14:40:05Z
last-modified: 2026-02-12T14:40:05Z
source: RIPE
% Information related to 'AS213877'
% Abuse contact for 'AS213877' is 'abuse@u1host.com'
aut-num: AS213877
as-name: U1DS-AS
org: ORG-UDSL5-RIPE
import: from AS49418 accept ANY
export: to AS49418 announce AS213877
sponsoring-org: ORG-NL628-RIPE
admin-c: UA17912-RIPE
tech-c: UA17912-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: u1host-mnt
created: 2024-11-11T14:42:54Z
last-modified: 2026-03-14T19:09:23Z
source: RIPE
organisation: ORG-UDSL5-RIPE
org-name: U1 DIGITAL SERVICES LTD
country: GB
org-type: OTHER
address: 128 City Road
address: EC1V 2NX
address: London
address: UNITED KINGDOM
admin-c: UA17912-RIPE
abuse-c: UA17912-RIPE
tech-c: UA17912-RIPE
mnt-ref: u1host-mnt
mnt-ref: netshield-mnt
mnt-ref: SBMT
mnt-ref: lir-us-acedatacenter-1-MNT
mnt-by: u1host-mnt
created: 2026-03-08T15:50:07Z
last-modified: 2026-03-08T15:50:07Z
source: RIPE # Filtered
role: u1host
address: 71-75 Shelton Street
address: WC2H 9JQ
address: London
address: UNITED KINGDOM
abuse-mailbox: abuse@u1host.com
nic-hdl: UA17912-RIPE
mnt-by: u1host-mnt
created: 2024-11-08T07:02:16Z
last-modified: 2024-11-08T07:03:25Z
source: RIPE # Filtered
% This query was served by the RIPE Database Query Service version 1.121.2 (BUSA)