AS22252 — AS22252 - The City of New York

AS22252 announces 9 IPv4 prefixes covering 194,304 addresses and 0 IPv6 prefixes.

About this network

AS22252 is operated by The City of New York.

What it's used for

• The address space carries municipal network infrastructure, as indicated by the consistent CITYNET netnames across all major prefixes.
• The AS announces 194,304 IPv4 addresses across 42 prefixes while maintaining only 2 observed neighbours, a ratio that implies a self-contained internal corporate estate rather than a transit or access provider.

Notable

• All registrants in the evidence pack are listed as "The City of New York," fully agreeing with the AS holder.
• The inventory consists of three primary blocks: 167.153.0.0/17, 157.188.0.0/16 (subdivided), and 161.185.0.0/16 (subdivided), reflecting a finely segmented internal network.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 157.188.0.0/16
• 161.185.0.0/16
• 167.153.0.0/17
• 167.153.128.0/18
• 167.153.192.0/19
• 167.153.224.0/20
• 167.153.240.0/22
• 167.153.253.0/24
• 167.153.254.0/23

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS12271 Charter Communications Inc

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS12271 Charter Communications Inc

Routing security

• RPKI: 23 valid, 0 invalid and 0 not-found announcements; 29 ROAs.
• ASPA: none published.
• IRR: 83% of announcements registered; 25 route objects.
• Listed in as-sets: AS-CCF, AS-CCF-TEST, AS-CHTR-SYNC, AS-HURRICANE, AS-RR-BIZ, AS-UDOS, AS-WINDSTREAM-CUST, AS-XO-B.