AS13621 — REINSURANCE

AS13621 announces 5 IPv4 prefixes covering 1,536 addresses and 0 IPv6 prefixes.

About this network

A netname suffixed with a country code, on a company whose business is spreading risk across all of them.

What it's used for

• A reinsurance company's network. 1,536 addresses across five IPv4 prefixes, five observed BGP neighbours, and no IPv6 announced.

Notable

• Three blocks are netname RGA-US, initials with a country suffix, registered to the company.
• 12.219.219.0/24 is netname ATT-NET-12-219-0-0, registered to a carrier.
• One prefix's registry lookup failed, so nothing is known about its registration here.
• Fifteen addresses were queried for reverse DNS and none returned a name.

Interesting

• A country suffix on a netname is a company that expects siblings elsewhere. Reinsurers operate through separately capitalised entities in each market, so the naming anticipates address space registered under different regional registries with the same initials.
• Five upstreams for 1,536 addresses is a high ratio, and it fits the business. Reinsurance is settlement, treaty data and catastrophe modelling exchanged with cedents on schedules, and the volumes are small while the consequences of being unreachable are not.
• The blocks come from three unrelated ranges plus one carrier's, which is the shape of space acquired over decades: a little from the early days, a little bought later, and a little rented.

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

Announced prefixes

• 12.219.219.0/24
• 104.128.78.0/23
• 104.204.233.0/24
• 104.204.234.0/24
• 198.190.171.0/24

Upstream networks

• AS7018 AT&T Enterprises, LLC
• AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
• AS3356 Level 3 Parent, LLC
• AS2686 AT&T Enterprises, LLC
• AS2687 AT&T Enterprises, LLC

Adjacent networks

• AS7018 AT&T Enterprises, LLC
• AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
• AS3356 Level 3 Parent, LLC
• AS2686 AT&T Enterprises, LLC
• AS2687 AT&T Enterprises, LLC

Internet exchanges

• Megaport Dallas — Dallas, United States