206208 looking glass

166.137.128.0/17 RPKI valid

Announced by AS20057 AT&T Enterprises, LLC.

Origin

Origin ASRPKI Peers seeing itSample path First seenLast seen
AS20057 AT&T Enterprises, LLC RPKI valid 43 701820057 2026-09-18 2026-10-25

RPKI

2 ROAs cover this prefix

ROA prefixMax lengthAuthorised originTrust anchorResult for this route
166.137.0.0/16 /24 AS20057 arin authorises it
166.136.0.0/15 /15 AS7018 arin wrong origin

Registry

Who this address space is delegated to, regardless of whether it is routed

Delegated block
166.136.0.0/15
RIR
ARIN
Country
🇺🇸 US
Status
allocated
Allocated
2025-04-01

Less specific routes

Announced prefixes that contain this one

Prefix Origin RPKI Peers Sample path First seen
166.137.0.0/16 v4 AS20057 AT&T Enterprises, LLC RPKI valid 43 701820057 2026-09-18
166.136.0.0/15 v4 AS7018 AT&T Enterprises, LLC RPKI valid 42 345491747018 2026-09-18

More specific routes

46 announced prefixes inside this one

Prefix Origin RPKI Peers First seen
166.137.132.0/23 v4 AS20057 AT&T Enterprises, LLC RPKI valid 43 2026-09-18
166.137.136.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.137.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.138.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.139.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.140.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.141.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.142.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.143.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.144.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.145.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.146.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.147.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.148.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.149.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.160.0/22 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.168.0/22 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.172.0/22 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.176.0/22 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.191.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.208.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.210.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.216.0/23 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.221.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.222.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.223.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.224.0/23 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.226.0/23 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.228.0/23 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.230.0/23 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.232.0/23 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.234.0/23 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.240.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.241.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.242.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.243.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.244.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.245.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.246.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.247.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.248.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.249.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.252.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.253.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.254.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18
166.137.255.0/24 v4 AS20057 AT&T Enterprises, LLC RPKI valid 42 2026-09-18