AS53257 — ASN1 - The Citadel

AS53257 announces 21 IPv4 prefixes covering 61,440 addresses and 0 IPv6 prefixes.

About this network

ASN1 is operated by The Citadel.

What it's used for

• The address space is registered under the netname CITADEL with registrant The Citadel across all sampled prefixes.
• The AS announces 61,440 IPv4 addresses across 21 prefixes, with a single observed routing neighbour, indicating an isolated internal network rather than a transit or access provider.
• The inventory consists entirely of IPv4 space within the 155.225.0.0/16 range, subdivided into 21 distinct prefixes.

Notable

• All RDAP registrants for the largest prefixes list The Citadel as the registrant and CITADEL as the netname, consistent with the AS holder.
• The address inventory is finely subdivided into 21 prefixes, suggesting site-by-site segmentation typical of an internal corporate or institutional estate.

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

Announced prefixes

• 155.225.0.0/22
• 155.225.4.0/23
• 155.225.7.0/24
• 155.225.8.0/21
• 155.225.16.0/20
• 155.225.32.0/20
• 155.225.48.0/23
• 155.225.52.0/22
• 155.225.56.0/22
• 155.225.60.0/24
• 155.225.65.0/24
• 155.225.66.0/23
• 155.225.68.0/23
• 155.225.70.0/24
• 155.225.72.0/21
• 155.225.80.0/20
• 155.225.96.0/19
• 155.225.128.0/18
• 155.225.200.0/21
• 155.225.208.0/20
• 155.225.224.0/19

Upstream networks

• AS2711 Spirit Communications

Adjacent networks

• AS2711 Spirit Communications

Routing security

• RPKI: 0 valid, 0 invalid and 22 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 0 route objects.
• Listed in as-sets: AS-RR-BIZ, AS-WINDSTREAM-CUST, AS2711:AS-CUSTOMERS, AS27563:AS-ALL.