66.76.0.0/16 no ROA

Announced by AS19108 Optimum.

Origin

Origin ASRPKI Peers seeing itSample path First seenLast seen
AS19108 Optimum no ROA 41 1490719108 2026-09-18 2026-09-21

RPKI

No ROA covers this prefix

No ROA covers this prefix, so origin validation returns "unknown". That is not a fault; most of the table is still unsigned.

Registry

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

Delegated block
66.76.0.0/16
RIR
ARIN
Country
🇺🇸 US
Status
allocated
Allocated
2001-02-06

Less specific routes

Announced prefixes that contain this one

Nothing less specific is announced.

More specific routes

22 announced prefixes inside this one

Prefix Origin RPKI Peers First seen
66.76.0.0/17 v4 AS19108 Optimum no ROA 41 2026-09-18
66.76.6.0/24 v4 AS19108 Optimum no ROA 40 2026-09-18
66.76.80.0/24 v4 AS19108 Optimum no ROA 41 2026-09-18
66.76.114.0/24 v4 AS19108 Optimum no ROA 41 2026-09-18
66.76.128.0/18 v4 AS19108 Optimum no ROA 41 2026-09-18
66.76.163.0/24 v4 AS19108 Optimum no ROA 40 2026-09-18
66.76.173.0/24 v4 AS400947 Shannon Medical Center RPKI valid 40 2026-09-18
66.76.174.0/24 v4 AS19108 Optimum no ROA 40 2026-09-18
66.76.176.0/20 v4 AS19108 Optimum no ROA 41 2026-09-18
66.76.192.0/20 v4 AS19108 Optimum no ROA 41 2026-09-18
66.76.193.0/24 v4 AS19108 Optimum no ROA 10 2026-09-18
66.76.194.0/24 v4 AS19108 Optimum no ROA 10 2026-09-18
66.76.202.0/23 v4 AS19108 Optimum no ROA 39 2026-09-18
66.76.215.0/24 v4 AS19108 Optimum no ROA 41 2026-09-18
66.76.216.0/24 v4 AS19108 Optimum no ROA 41 2026-09-18
66.76.217.0/24 v4 AS19108 Optimum no ROA 41 2026-09-18
66.76.220.0/24 v4 AS19108 Optimum no ROA 40 2026-09-18
66.76.221.0/24 v4 AS19108 Optimum no ROA 40 2026-09-18
66.76.222.0/24 v4 AS19108 Optimum no ROA 40 2026-09-18
66.76.223.0/24 v4 AS19108 Optimum no ROA 40 2026-09-18
66.76.224.0/20 v4 AS19108 Optimum no ROA 41 2026-09-18
66.76.240.0/20 v4 AS19108 Optimum no ROA 41 2026-09-18