AS17105 — NISA-STL - NISA Investment Advisors

AS17105 announces 2 IPv4 prefixes covering 512 addresses and 0 IPv6 prefixes.

About this network

The AS handle NISA-STL is held by NISA Investment Advisors.

What it's used for

• The address space carries corporate infrastructure for a bond portfolio management firm, as indicated by the netnames NISA-INVESTMENT-ADVISORS-SD and NISA-INVESTMENT-ADVISORS.
• The AS announces 512 IPv4 addresses across 2 prefixes with 3 observed neighbours, a ratio consistent with a small internal corporate estate rather than a transit or access network.

Notable

• The registrants for both announced prefixes are NISA Investment Advisors, matching the AS holder exactly.
• The address inventory consists of two /24 blocks, 192.135.218.0/24 and 199.168.41.0/24, representing a compact and finely subdivided corporate footprint.

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

Announced prefixes

• 192.135.218.0/24
• 199.168.41.0/24

Upstream networks

• AS63474 Sirius Computer Solutions, Inc.
• AS3356 Level 3 Parent, LLC
• AS701 Verizon Business

Adjacent networks

• AS63474 Sirius Computer Solutions, Inc.
• AS3356 Level 3 Parent, LLC
• AS701 Verizon Business

Routing security

• RPKI: 0 valid, 0 invalid and 2 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 0 route objects.
• Listed in as-sets: AS-23304-CUSTOMERS, AS-NISA-TRANSIT.