206208 looking glass

AS19905 Arbor Cloud 🇺🇸 US

Announcing 161 prefixes, seen at the RIS collectors.

IPv4 prefixes
135
37,120 (145 × /24)
IPv6 prefixes
26
26 × /48
Upstreams
6
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
35
transit customers observed
Customer cone
63
ASes reachable through it

Registry and operator data

AS number
AS19905
Name
Arbor Cloud
Organisation
UltraDDoS Protect
Country
🇺🇸 US
RIR
ARIN
Allocated
2007-08-24
Network type
NSP
Traffic levels
5-10Tbps
Scope
Global
Peering policy
Selective
IRR as-set
RADB::AS-UDOS
Website
https://www.neustarsecurityservices.com
PeeringDB
net/29099
Facilities
15

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

52 valid (32.3%) 0 invalid (0.0%) 109 no ROA (67.7%)

Announcement history

One point per day, recorded at each table import

0367110714209-1809-2309-2810-0310-0810-1310-1810-20
IPv4 IPv6

Recorded changes

New prefixes and origin changes seen on the live stream

WhenChangePrefixOriginPath
2026-10-19 22:47:06Z origin change 2a02:cb81:1014::/48 AS19905 → AS43766 20409234019852943766
2026-10-19 21:12:07Z origin change 46.184.18.0/24 AS19905 → AS47794 1490729141744779447794
2026-10-19 21:12:06Z origin change 46.184.18.0/24 AS47794 → AS19905 557202914645319905
2026-10-19 21:12:05Z origin change 46.184.18.0/24 AS19905 → AS47794 2051412991744779447794
2026-10-19 21:12:00Z origin change 46.184.18.0/24 AS47794 → AS19905 460812214637645319905
2026-10-19 21:11:57Z origin change 46.184.18.0/24 AS19905 → AS47794 5030412991744779447794
2026-10-19 21:11:53Z origin change 46.184.18.0/24 AS47794 → AS19905 380013491291419905
2026-10-19 21:11:46Z origin change 46.184.18.0/24 AS19905 → AS47794 45049669655114779447794
2026-10-19 21:11:45Z origin change 46.184.18.0/24 AS47794 → AS19905 8522914645319905
2026-10-19 21:11:44Z origin change 46.184.18.0/24 AS47794 → AS19905 226521299645319905
2026-10-19 21:11:44Z origin change 46.184.18.0/24 AS19905 → AS47794 226521744779447794
2026-10-19 21:11:44Z origin change 46.184.18.0/24 AS47794 → AS19905 149072914645319905
2026-10-19 21:11:44Z origin change 46.184.18.0/24 AS19905 → AS47794 226521744779447794
2026-10-19 21:11:37Z origin change 46.184.18.0/24 AS47794 → AS19905 226521299645319905
2026-10-19 21:11:36Z origin change 46.184.18.0/24 AS19905 → AS47794 491345335669394779447794
2026-10-19 21:11:36Z origin change 46.184.18.0/24 AS47794 → AS19905 49134533566939645319905
2026-10-19 21:11:36Z origin change 46.184.18.0/24 AS19905 → AS47794 491345335669394779447794
2026-10-19 21:11:36Z origin change 46.184.18.0/24 AS19905 → AS47794 6121869394779447794
2026-10-19 21:11:36Z origin change 46.184.18.0/24 AS47794 → AS19905 612186939645319905
2026-10-19 21:11:36Z origin change 46.184.18.0/24 AS19905 → AS47794 6121869394779447794
2026-10-19 21:11:36Z origin change 46.184.18.0/24 AS19905 → AS47794 2020569394779447794
2026-10-19 21:11:35Z origin change 46.184.18.0/24 AS47794 → AS19905 557202914645319905
2026-10-19 21:11:34Z origin change 46.184.18.0/24 AS47794 → AS19905 557202914645319905
2026-10-19 21:11:32Z origin change 46.184.18.0/24 AS19905 → AS47794 59919127794779447794
2026-10-19 21:11:27Z origin change 46.184.18.0/24 AS19905 → AS47794 34927566554779447794
2026-10-19 21:11:27Z origin change 46.184.18.0/24 AS47794 → AS19905 7018291419905
2026-10-19 21:11:10Z origin change 46.184.18.0/24 AS19905 → AS47794 59919127794779447794
2026-10-19 21:11:10Z origin change 46.184.18.0/24 AS47794 → AS19905 599199002291419905
2026-10-19 21:09:06Z origin change 46.184.18.0/24 AS47794 → AS19905 14907291419905
2026-10-19 21:04:01Z origin change 46.184.18.0/24 AS19905 → AS47794 49432483624779447794
2026-10-19 21:04:01Z origin change 46.184.19.0/24 AS19905 → AS47794 49432483624779447794
2026-10-19 21:04:01Z origin change 46.184.43.0/24 AS19905 → AS47794 49432483624779447794
2026-10-19 21:03:59Z origin change 139.104.72.0/21 AS8137 → AS19905 49432483621764291419905
2026-10-19 21:03:59Z origin change 208.253.53.0/24 AS39997 → AS19905 49432483621764291419905
2026-10-19 20:55:52Z origin change 144.2.131.0/24 AS19905 → AS8444 354933561299158308444
2026-10-19 20:55:47Z origin change 144.2.131.0/24 AS19905 → AS8444 202365506731741299158308444
2026-10-19 20:55:30Z origin change 144.2.131.0/24 AS8444 → AS19905 50300291419905
2026-10-19 20:55:26Z origin change 144.2.131.0/24 AS19905 → AS8444 176396939158308444
2026-10-19 20:55:23Z origin change 144.2.131.0/24 AS8444 → AS19905 35493356291419905
2026-10-19 20:55:19Z origin change 144.2.131.0/24 AS8444 → AS19905 202365506736453291419905
2026-10-19 20:54:52Z origin change 144.2.131.0/24 AS8444 → AS19905 35493356291419905
2026-10-19 20:54:52Z origin change 144.2.131.0/24 AS19905 → AS8444 216285828067622914158308444
2026-10-19 20:54:51Z origin change 144.2.131.0/24 AS19905 → AS8444 13282533562914158308444
2026-10-19 20:54:51Z origin change 144.2.131.0/24 AS8444 → AS19905 21628582806762291419905
2026-10-19 20:54:48Z origin change 144.2.131.0/24 AS19905 → AS8444 70181299158308444
2026-10-19 20:54:35Z origin change 144.2.131.0/24 AS19905 → AS8444 460875752914158308444
2026-10-19 20:54:29Z origin change 144.2.131.0/24 AS19905 → AS8444 3288403277271741299158308444
2026-10-19 20:54:28Z origin change 144.2.131.0/24 AS8444 → AS19905 380013491291419905
2026-10-19 20:54:26Z origin change 144.2.131.0/24 AS8444 → AS19905 176393491645319905
2026-10-19 20:54:10Z origin change 144.2.131.0/24 AS19905 → AS8444 557206939158308444
2026-10-19 20:54:08Z origin change 144.2.131.0/24 AS19905 → AS8444 3798956300132132465764618444844484448444
2026-10-19 20:54:05Z origin change 144.2.131.0/24 AS8444 → AS19905 5805718363356291419905
2026-10-19 20:54:04Z origin change 144.2.131.0/24 AS19905 → AS8444 2040921989781741299158308444
2026-10-19 20:54:04Z origin change 144.2.131.0/24 AS8444 → AS19905 2040923401962000645319905
2026-10-19 20:54:04Z origin change 144.2.131.0/24 AS19905 → AS8444 204092207661299158308444
2026-10-19 20:54:04Z origin change 144.2.131.0/24 AS8444 → AS19905 460812214637645319905
2026-10-19 20:54:01Z origin change 144.2.131.0/24 AS8444 → AS19905 138309713356291419905
2026-10-19 20:53:59Z origin change 144.2.131.0/24 AS8444 → AS19905 21628582806762325719905
2026-10-19 20:53:57Z origin change 144.2.131.0/24 AS19905 → AS8444 49673204851299158308444
2026-10-19 20:53:56Z origin change 144.2.131.0/24 AS19905 → AS8444 34927566551299158308444
2026-10-19 20:53:51Z origin change 144.2.131.0/24 AS8444 → AS19905 21628582806762645319905
2026-10-19 20:53:49Z origin change 144.2.131.0/24 AS8444 → AS19905 20236550673174645319905
2026-10-19 20:53:46Z origin change 144.2.131.0/24 AS19905 → AS8444 49432483621299158308444
2026-10-19 20:53:46Z origin change 144.2.131.0/24 AS8444 → AS19905 599199002291419905
2026-10-19 20:53:46Z origin change 144.2.131.0/24 AS19905 → AS8444 5991990023257158308444
2026-10-19 20:53:46Z origin change 144.2.131.0/24 AS8444 → AS19905 49432483629002291419905
2026-10-19 20:53:45Z origin change 144.2.131.0/24 AS19905 → AS8444 49134533566939158308444
2026-10-19 20:53:34Z origin change 144.2.131.0/24 AS8444 → AS19905 46087575291419905
2026-10-19 20:53:33Z origin change 144.2.131.0/24 AS19905 → AS8444 44393580576939158308444
2026-10-19 20:53:32Z origin change 144.2.131.0/24 AS8444 → AS19905 33333320325719905
2026-10-19 20:53:29Z origin change 144.2.131.0/24 AS19905 → AS8444 226521299158308444
2026-10-19 20:53:29Z origin change 144.2.131.0/24 AS8444 → AS19905 37721645319905
2026-10-19 20:53:29Z origin change 144.2.131.0/24 AS19905 → AS8444 57821125863257158308444
2026-10-19 20:53:28Z origin change 144.2.131.0/24 AS8444 → AS19905 49134533566424291419905
2026-10-19 20:53:27Z origin change 144.2.131.0/24 AS19905 → AS8444 2448264618444844484448444
2026-10-19 20:53:15Z origin change 144.2.131.0/24 AS8444 → AS19905 49134533566424291419905
2026-10-19 20:52:35Z origin change 144.2.131.0/24 AS19905 → AS8444 205141299158308444
2026-10-19 20:52:22Z origin change 144.2.131.0/24 AS8444 → AS19905 1403577645319905
2026-10-19 20:52:03Z origin change 144.2.131.0/24 AS8444 → AS19905 24482291419905
2026-10-19 20:52:02Z origin change 144.2.131.0/24 AS19905 → AS8444 29504393923389164618444844484448444
2026-10-19 20:52:02Z origin change 144.2.131.0/24 AS19905 → AS8444 3454964618444844484448444
2026-10-19 20:42:39Z origin change 144.2.131.0/24 AS8444 → AS19905 57381503041299645319905
2026-10-19 20:42:35Z origin change 144.2.131.0/24 AS19905 → AS8444 57381503041299158308444
2026-10-19 20:42:16Z origin change 144.2.131.0/24 AS8444 → AS19905 1403577645319905
2026-10-19 20:42:12Z origin change 144.2.131.0/24 AS19905 → AS8444 140357764618444844484448444
2026-10-19 20:42:08Z origin change 144.2.131.0/24 AS8444 → AS19905 349271299645319905
2026-10-19 20:42:05Z origin change 144.2.131.0/24 AS19905 → AS8444 57381427081299158308444
2026-10-19 20:41:59Z origin change 144.2.131.0/24 AS19905 → AS8444 349271299158308444
2026-10-19 20:41:59Z origin change 144.2.131.0/24 AS8444 → AS19905 328840327727174645319905
2026-10-19 20:41:50Z origin change 144.2.131.0/24 AS19905 → AS8444 206499345491299158308444
2026-10-19 20:41:50Z origin change 144.2.131.0/24 AS8444 → AS19905 20649934549291419905
2026-10-19 20:41:50Z origin change 144.2.131.0/24 AS19905 → AS8444 345491299158308444
2026-10-19 20:41:50Z origin change 144.2.131.0/24 AS8444 → AS19905 34549645319905
2026-10-19 20:41:48Z origin change 144.2.131.0/24 AS19905 → AS8444 85264618444844484448444
2026-10-19 20:41:48Z origin change 144.2.131.0/24 AS8444 → AS19905 2950439392325719905
2026-10-19 20:41:12Z origin change 144.2.131.0/24 AS8444 → AS19905 4967312389325719905
2026-10-19 20:06:24Z origin change 2a02:cb81:1014::/48 AS43766 → AS19905 49432483621764291419905
2026-10-19 20:06:21Z origin change 2a02:cb81:1014::/48 AS19905 → AS43766 49432215510483621299852943766
2026-10-19 20:05:49Z origin change 2a02:cb81:1014::/48 AS43766 → AS19905 49432483621764291419905
2026-10-19 20:05:46Z origin change 2a02:cb81:1014::/48 AS19905 → AS43766 49432215510483621299852943766