AS19067 — VAILSYS

AS19067 announces 6 IPv4 prefixes covering 1,536 addresses and 0 IPv6 prefixes.

About this network

VAILSYS is the AS handle for Vail Systems, Inc.

What it's used for

• The address space carries a mix of corporate and leased infrastructure, evidenced by netnames LVLT-ORG-8-8 and LPL-141-VAILSY-3-63-209-137.
• Reverse DNS entries such as spldns02b-new.vailsys.com and apldns02a.vailsys.com indicate internal DNS services.
• The AS announces 1536 IPv4 addresses across 6 prefixes with only 3 observed neighbours, suggesting a small-scale enterprise or internal corporate estate rather than a large access network.

Notable

• Registrants include Level 3 Parent, LLC for three prefixes and Flexential Colorado Corp. for one, indicating significant leased or inherited address space from former telecom operators.
• Vail Systems, Inc. is the registrant for one prefix, aligning with the AS holder.
• The inventory consists of six /24 blocks, with no IPv6 prefixes announced.

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

Announced prefixes

• 8.17.202.0/24
• 8.18.118.0/24
• 8.28.64.0/24
• 63.209.137.0/24
• 63.210.102.0/24
• 74.63.156.0/24

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS13649 Flexential Colorado Corp.
• AS174 Cogent Communications, LLC

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS13649 Flexential Colorado Corp.
• AS174 Cogent Communications, LLC

Routing security

• RPKI: 0 valid, 0 invalid and 6 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 17% of announcements registered; 1 route objects.
• Listed in as-sets: AS-FLEXENTIAL-CUSTOMERS, AS-FLEXENTIAL-TEST2, AS-VAIL, AS-VIAWEST-TRANSIT.

Internet exchanges

• Detroit Internet Exchange — Detroit, United States
• Interconnection eXchange Denver — Denver, United States