Data as of Nov 15, 2026

67.221.16.0/20

No anonymizer space · no proxy exits in 30 days

New York City Health & Hospitals Corporation

Announcement
this exact prefix
No RPKI
Announced by
Type
Business

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

PrefixOriginTypeHolderRPKI
67.221.16.0/21
since Nov 2023
AS46996BusinessNew York City Health & Hospitals Corporation
67.221.16.0/24
since Jul 2009
AS46996BusinessNew York City Health & Hospitals Corporation
67.221.18.0/24
since Jun 2023
AS46996BusinessNew York City Health & Hospitals Corporation
67.221.19.0/24
since Jun 2023
AS46996BusinessNew York City Health & Hospitals Corporation
67.221.24.0/21
since Jul 2022
AS11584BusinessNew York City Health & Hospitals Corporation
67.221.24.0/24
since Jul 2022
AS11584BusinessNew York City Health & Hospitals Corporation
67.221.26.0/24
since Mar 2022
AS11584BusinessNew York City Health & Hospitals Corporation
67.221.27.0/24
since Mar 2022
AS11584BusinessNew York City Health & Hospitals Corporation

Network & registry

Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Rotating
First seen
Mar 2022
Current origin since
Mar 2025 · 1.7 yr
Origin networks
2
Last change of origin
Mar 2025
Recorded history

History

Handoffs
2
Also announced by
46996