AS20004 Midcontinent Independent System Operator, Inc. 🇺🇸 US

Announcing 5 prefixes, seen at the RIS collectors.

IPv4 prefixes
5
16,384 (64 × /24)
IPv6 prefixes
0
-
Upstreams
3
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
AS20004
Name
Midcontinent Independent System Operator, Inc.
Organisation
Midcontinent Independent System Operator, Inc.
Country
🇺🇸 US
RIR
ARIN
Allocated
2001-03-13

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

0 valid (0.0%) 0 invalid (0.0%) 5 no ROA (100.0%)

Announced prefixes

5 in total

Prefix RPKI Peers Sample path First seen
148.142.64.0/19 v4 no ROA 43 37721335620004 2026-09-18
148.142.64.0/21 v4 no ROA 43 3278720004 2026-09-18
148.142.72.0/21 v4 no ROA 43 3278720004 2026-09-18
148.142.80.0/21 v4 no ROA 43 3278720004 2026-09-18
148.142.88.0/21 v4 no ROA 43 3278720004 2026-09-18