AS11740 — PROGRESSIVE-AS

AS11740 announces 8 IPv4 prefixes covering 13,824 addresses and 0 IPv6 prefixes.

About this network

PROGRESSIVE-AS is Progressive Casualty Insurance Company, the Ohio-headquartered auto and property insurer. This is a corporate enterprise network belonging to a single large company.

What it's used for

Progressive's own public-facing and inter-site connectivity: the customer-facing quoting and policy platform, claims systems, agent portals and the corporate edge. RIS sees 12 IPv4 prefixes, 18,432 addresses, no IPv6, and 15 observed neighbours.

Fifteen neighbours is more than a typical enterprise and worth explaining rather than glossing over. It is still far short of a carrier, which peers with hundreds to thousands, but it is what you would expect from a company that runs its own multi-site estate, buys transit from several carriers for resilience, and connects directly to partners. A national insurer that loses money for every minute its quote engine is unreachable buys redundancy accordingly. The neighbour count is a robustness decision, not a sign it sells connectivity.

Notable

Every prefix in the pack registers in ARIN to Progressive Casualty Insurance Company under a single PROGRESSIVE handle, and all of them sit inside 170.218.0.0/16. One org, one contiguous /16, deaggregated into /20s, /21s, /22s, /23s and /24s. That deaggregation pattern is traffic engineering — steering specific blocks over specific carriers — not a scattered or leased inventory. Registrant and originator are the same party throughout.

Interesting

No IPv6 is announced in the RIS window at all, despite the scale of the estate. That is a notable gap for a consumer-facing brand of this size, and it means every Progressive customer reaches the company over IPv4 today. Reverse DNS returned nothing on the twenty addresses sampled, which is a sample and supports no inference either way.

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

Announced prefixes

• 170.218.32.0/20
• 170.218.48.0/23
• 170.218.68.0/22
• 170.218.200.0/21
• 170.218.208.0/20
• 170.218.240.0/22
• 170.218.246.0/23
• 170.218.248.0/23

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS701 Verizon Business
• AS32787 Akamai Technologies, Inc.
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS293 ESnet

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS701 Verizon Business
• AS32787 Akamai Technologies, Inc.
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS293 ESnet

Internet exchanges

• Equinix Internet Exchange Chicago — Chicago, United States
• Equinix Internet Exchange New York — New York, United States