173.218.0.0/16 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
173.216.0.0/14
RIR
ARIN
Country
🇺🇸 US
Status
allocated
Allocated
2009-09-16

Less specific routes

Announced prefixes that contain this one

Nothing less specific is announced.

More specific routes

20 announced prefixes inside this one

Prefix Origin RPKI Peers First seen
173.218.24.0/22 v4 AS19108 Optimum no ROA 41 2026-09-18
173.218.28.0/22 v4 AS19108 Optimum no ROA 41 2026-09-18
173.218.32.0/22 v4 AS19108 Optimum no ROA 41 2026-09-18
173.218.36.0/22 v4 AS19108 Optimum no ROA 41 2026-09-18
173.218.40.0/22 v4 AS19108 Optimum no ROA 41 2026-09-18
173.218.44.0/22 v4 AS19108 Optimum no ROA 41 2026-09-18
173.218.48.0/22 v4 AS19108 Optimum no ROA 41 2026-09-18
173.218.64.0/22 v4 AS19108 Optimum no ROA 10 2026-09-18
173.218.68.0/22 v4 AS19108 Optimum no ROA 10 2026-09-18
173.218.72.0/22 v4 AS19108 Optimum no ROA 10 2026-09-18
173.218.76.0/22 v4 AS19108 Optimum no ROA 10 2026-09-18
173.218.80.0/22 v4 AS19108 Optimum no ROA 10 2026-09-18
173.218.84.0/22 v4 AS19108 Optimum no ROA 10 2026-09-18
173.218.88.0/22 v4 AS19108 Optimum no ROA 10 2026-09-18
173.218.92.0/22 v4 AS19108 Optimum no ROA 10 2026-09-18
173.218.96.0/22 v4 AS19108 Optimum no ROA 10 2026-09-18
173.218.208.0/20 v4 AS19108 Optimum no ROA 42 2026-09-18
173.218.224.0/20 v4 AS19108 Optimum no ROA 42 2026-09-18
173.218.240.0/21 v4 AS19108 Optimum no ROA 41 2026-09-18
173.218.251.0/24 v4 AS19108 Optimum no ROA 40 2026-09-18