206208 looking glass

AS9 Carnegie Mellon University 🇺🇸 US

Announcing 10 prefixes, seen at the RIS collectors.

IPv4 prefixes
9
134,656 (526 × /24)
IPv6 prefixes
1
1 × /32
Upstreams
5
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it

Registry and operator data

AS number
AS9
Name
Carnegie Mellon University
Organisation
Carnegie Mellon University
Country
🇺🇸 US
RIR
ARIN
Allocated
1984-04-17
Scope
Not Disclosed
Peering policy
Open
PeeringDB
net/25847

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

1 valid (10.0%) 0 invalid (0.0%) 9 no ROA (90.0%)

Announcement history

One point per day, recorded at each table import

0257909-1809-2610-0410-1210-2010-2811-0511-08
IPv4 IPv6

Recorded changes

New prefixes and origin changes seen on the live stream

WhenChangePrefixOriginPath
2026-11-01 06:08:58Z origin change 43.245.228.0/24 AS14127 → AS9 557206939141279
2026-11-01 06:08:58Z origin change 43.245.229.0/24 AS14127 → AS9 557206939141279
2026-11-01 06:08:58Z origin change 43.245.230.0/24 AS14127 → AS9 557206939141279
2026-11-01 06:08:58Z origin change 45.112.6.0/24 AS14127 → AS9 557206939141279
2026-11-01 06:08:58Z origin change 45.112.7.0/24 AS14127 → AS9 557206939141279
2026-11-01 06:08:58Z origin change 103.104.222.0/24 AS14127 → AS9 557206939141279
2026-11-01 06:08:58Z origin change 43.245.229.0/24 AS9 → AS14127 49134533566939463714127
2026-11-01 06:08:58Z origin change 103.104.222.0/24 AS9 → AS14127 49134533566939463714127
2026-11-01 06:08:58Z origin change 45.112.7.0/24 AS9 → AS14127 49134533566939463714127
2026-11-01 06:08:58Z origin change 43.245.230.0/24 AS9 → AS14127 49134533566939463714127
2026-11-01 06:08:58Z origin change 45.112.6.0/24 AS9 → AS14127 49134533566939463714127
2026-11-01 06:08:58Z origin change 43.245.228.0/24 AS9 → AS14127 49134533566939463714127
2026-11-01 03:21:36Z origin change 43.245.230.0/24 AS9 → AS14127 34927566556939822014127
2026-11-01 03:21:36Z origin change 45.112.6.0/24 AS9 → AS14127 34927566556939822014127
2026-11-01 03:21:36Z origin change 45.112.7.0/24 AS9 → AS14127 34927566556939822014127
2026-11-01 03:21:36Z origin change 103.104.222.0/24 AS9 → AS14127 34927566556939822014127
2026-11-01 03:21:36Z origin change 43.245.228.0/24 AS9 → AS14127 34927566556939822014127
2026-11-01 03:21:36Z origin change 43.245.229.0/24 AS9 → AS14127 34927566556939822014127
2026-11-01 03:21:32Z origin change 43.245.228.0/24 AS14127 → AS9 557206939141279
2026-11-01 03:21:32Z origin change 43.245.229.0/24 AS14127 → AS9 557206939141279
2026-11-01 03:21:32Z origin change 43.245.230.0/24 AS14127 → AS9 557206939141279
2026-11-01 03:21:32Z origin change 45.112.6.0/24 AS14127 → AS9 557206939141279
2026-11-01 03:21:32Z origin change 45.112.7.0/24 AS14127 → AS9 557206939141279
2026-11-01 03:21:32Z origin change 103.104.222.0/24 AS14127 → AS9 557206939141279
2026-11-01 02:50:09Z origin change 147.72.252.0/22 AS9 → AS36407 49134533566939505036407
2026-10-31 00:08:09Z origin change 147.72.252.0/22 AS9 → AS36407 4943248362176464614688736407
2026-10-30 12:32:34Z origin change 147.72.252.0/22 AS36407 → AS9 349275665569393998559
2026-10-30 12:32:34Z origin change 147.72.252.0/22 AS36407 → AS9 349275665569393998559
2026-10-29 13:56:58Z origin change 147.72.252.0/22 AS9 → AS36407 44393580576939505036407
2026-10-29 13:56:34Z origin change 147.72.252.0/22 AS36407 → AS9 443935805769393998559
2026-10-29 12:56:01Z origin change 147.72.252.0/22 AS9 → AS36407 612186939505036407
2026-10-29 12:56:01Z origin change 147.72.252.0/22 AS9 → AS36407 44393580576939505036407
2026-10-29 12:55:48Z origin change 147.72.252.0/22 AS36407 → AS9 6121869393998559
2026-10-29 12:55:48Z origin change 147.72.252.0/22 AS36407 → AS9 443935805769393998559