AS19121 — BLATTNER-HOLDING-COMPANY

AS19121 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

The AS handle BLATTNER-HOLDING-COMPANY is held by Blattner Company.

What it's used for

• The space carries a single corporate block, identified by the netname BH-945 and registrant Blattner Company.
• The inventory consists of 256 IPv4 addresses within one prefix (192.65.178.0/24) and 0 IPv6 prefixes. With only 1 observed neighbour, this indicates an internal corporate estate rather than a transit or access network.

Notable

• The RDAP registrant Blattner Company aligns directly with the AS holder name.
• Blattner Company is the parent company of Blattner Energy and D.H. Blattner & Sons, both of which are members of the Quanta Services family.
• The address inventory is a single /24 block, representing a small, self-contained corporate network.

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

Announced prefixes

• 192.65.178.0/24

Upstream networks

• AS11232 Midcontinent Communications

Adjacent networks

• AS11232 Midcontinent Communications

Routing security

• RPKI: 0 valid, 0 invalid and 1 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 1 route objects.
• Listed in as-sets: AS-27204-TRANSIT, AS-AMTA-2-27204-SET, AS-BLATTNER-HOLDING-COMPANY, AS-HURRICANE, AS-NEWCORE-20204-TRANSIT, AS-NEWCORE-27204-TRANSIT, AS-TRANSROUTE-SPEC, AS11232:AS-CUSTOMER2.