AS17275 — FMAC-I-BILLING

AS17275 announces 8 IPv4 prefixes covering 17,408 addresses and 0 IPv6 prefixes.

About this network

The AS handle FMAC-I-BILLING is held by Federal Home Loan Mortgage Corporation.

What it's used for

• The address space carries internal corporate infrastructure for the Federal Home Loan Mortgage Corporation (Freddie Mac), as indicated by the consistent netname FHLMC across all registered prefixes.
• The AS announces 17,408 IPv4 addresses across 16 prefixes with only 4 observed neighbours, a ratio that implies an internal corporate estate with site-by-site segmentation rather than a transit or access network.

Notable

• All registrants in the RDAP data agree with the announcer, listing "Federal Home Loan Mortgage Corporation" for every prefix.
• The address inventory is finely subdivided into /20, /22, /23, and /24 blocks, all within the 161.107.0.0/16 range, reflecting a structured internal network design.

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

Announced prefixes

• 161.107.0.0/22
• 161.107.16.0/20
• 161.107.44.0/22
• 161.107.56.0/21
• 161.107.64.0/20
• 161.107.100.0/23
• 161.107.108.0/23
• 161.107.112.0/20

Upstream networks

• AS13335 Cloudflare, Inc.
• AS6461 Zayo Bandwidth
• AS7018 AT&T Enterprises, LLC
• AS3356 Level 3 Parent, LLC
• AS55002 F5, Inc.

Adjacent networks

• AS13335 Cloudflare, Inc.
• AS6461 Zayo Bandwidth
• AS7018 AT&T Enterprises, LLC
• AS3356 Level 3 Parent, LLC
• AS55002 F5, Inc.

Routing security

• RPKI: 53 valid, 0 invalid and 0 not-found announcements; 16 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 123 route objects.
• Listed in as-sets: AS-F5, AS-KDDCUSTOMER2, AS-TELSTRA-INTL-CUSTOMERS, AS13335:AS-CUSTOMERS, AS35280:AS-F5.