206208 looking glass

AS36407 Software Engineering Institute 🇺🇸 US

Announcing 4 prefixes, seen at the RIS collectors.

IPv4 prefixes
3
1,536 (6 × /24)
IPv6 prefixes
1
1 × /48
Upstreams
2
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
AS36407
Name
Software Engineering Institute
Organisation
Software Engineering Institute
Country
🇺🇸 US
RIR
ARIN
Allocated
2005-12-22

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

1 valid (25.0%) 0 invalid (0.0%) 3 no ROA (75.0%)

Announcement history

One point per day, recorded at each table import

0122309-1809-2409-3010-0610-1210-1810-2410-28
IPv4 IPv6

Recorded changes

New prefixes and origin changes seen on the live stream

WhenChangePrefixOriginPath
2026-10-22 17:06:39Z origin change 147.72.252.0/22 AS9 → AS36407 612186939505036407
2026-10-22 17:03:39Z origin change 147.72.252.0/22 AS36407 → AS9 443935805769393998559
2026-10-21 14:29:35Z origin change 147.72.252.0/22 AS9 → AS36407 612186939505036407
2026-10-21 14:29:15Z origin change 147.72.252.0/22 AS36407 → AS9 6121869393998559
2026-10-21 14:21:31Z origin change 147.72.252.0/22 AS9 → AS36407 44393580576939505036407
2026-10-21 14:21:09Z origin change 147.72.252.0/22 AS36407 → AS9 443935805769393998559
2026-10-20 13:25:21Z origin change 147.72.252.0/22 AS9 → AS36407 382292449011537505036407
2026-10-20 13:24:47Z origin change 147.72.252.0/22 AS36407 → AS9 14907111643998559
2026-10-18 18:49:02Z origin change 147.72.252.0/22 AS9 → AS36407 3288403277271745050505036407
2026-10-18 17:39:09Z origin change 147.72.252.0/22 AS36407 → AS9 349275665569393998559
2026-10-16 15:49:55Z origin change 147.72.252.0/22 AS9 → AS36407 3549335650505050505036407
2026-10-16 15:49:34Z origin change 147.72.252.0/22 AS36407 → AS9 460812214637111643998559
2026-10-16 15:49:19Z origin change 147.72.252.0/22 AS9 → AS36407 132825335664614688736407
2026-10-16 15:49:06Z origin change 147.72.252.0/22 AS36407 → AS9 382292449011537505099
2026-10-16 15:49:04Z origin change 147.72.252.0/22 AS9 → AS36407 46081221463711164505036407
2026-10-16 15:49:03Z origin change 147.72.252.0/22 AS36407 → AS9 443935805769393998559
2026-10-16 15:23:23Z origin change 147.72.252.0/22 AS9 → AS36407 4818564614688736407
2026-10-16 15:13:39Z origin change 147.72.252.0/22 AS36407 → AS9 226521299646199
2026-10-15 06:23:16Z origin change 147.72.252.0/22 AS9 → AS36407 612186939505036407
2026-10-15 06:09:46Z origin change 147.72.252.0/22 AS36407 → AS9 443935805769393998559