AS4891 — PORTO-18-4891

AS4891 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

PORTO-18-4891 is the Port of Houston Authority of Harris County, Texas, the public agency that operates the port's terminals and the Houston Ship Channel.

What it's used for

• Connectivity for the Authority's own operations: administrative offices, terminal facilities and port systems along the ship channel.
• A single small block, announced for the Authority's own use rather than resold. This is a government end-user network, not a provider.

Notable

• The Port of Houston Authority is a political subdivision of the State of Texas, so this is public-sector address space even though the port operates commercially.
• The low AS number carries no early-internet pedigree. ARIN registered it to the Authority in 2018, from reclaimed space.

Interesting

• Port authorities increasingly run their own AS because terminal operations, gate systems and security infrastructure need carrier-independent, multihomed connectivity across a physically sprawling site.

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

Announced prefixes

• 206.130.4.0/24

Upstream networks

• AS13767 DataBank Holdings, Ltd.

Adjacent networks

• AS13767 DataBank Holdings, Ltd.

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-C1, AS-CCI-TX-CUST, AS-DATABANK, AS-UDOS.