AS21837 — OPERASOFTWARE

AS21837 announces 8 IPv4 prefixes covering 5,888 addresses and 2 IPv6 prefixes.

About this network

OPERASOFTWARE is the autonomous system for Opera Software Americas LLC.

What it's used for

• The address space is registered under the netname OPERA-US-V4 for all announced IPv4 prefixes, indicating a dedicated corporate estate for the browser company's US operations.
• The AS announces 5888 IPv4 addresses across 8 prefixes and 2 IPv6 prefixes, while maintaining only 4 observed neighbours. This high address-to-neighbour ratio, combined with the single corporate registrant, identifies this as an internal corporate network rather than a transit or access provider.

Notable

• All registrants in the RDAP data match the announcer, consistently listing Opera Software Americas LLC for every prefix.
• The address inventory is finely subdivided into eight distinct IPv4 blocks within the 107.167.96.0/20 range, reflecting site-by-site or functional segmentation of the corporate estate.
• The operator is the developer of the Opera web browser, which includes built-in VPN and ad-blocking features, aligning with the enterprise classification.

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

Announced prefixes

• 107.167.96.0/22
• 107.167.100.0/24
• 107.167.102.0/23
• 107.167.104.0/21
• 107.167.116.0/22
• 107.167.122.0/23
• 107.167.125.0/24
• 107.167.126.0/24
• 2620:117:c000::/48
• 2620:117:c004::/48

Upstream networks

• AS6939 Hurricane Electric LLC
• AS6461 Zayo Bandwidth
• AS174 Cogent Communications, LLC

Downstream networks

• AS39832 Opera Norway AS

Adjacent networks

• AS6939 Hurricane Electric LLC
• AS6461 Zayo Bandwidth
• AS174 Cogent Communications, LLC
• AS39832 Opera Norway AS

Internet exchanges

• Equinix Internet Exchange Ashburn — Ashburn, United States