AS29899 — GEISINGER

AS29899 announces 1 IPv4 prefixes covering 65,536 addresses and 1 IPv6 prefixes.

About this network

The AS handle GEISINGER is held by Geisinger System Services.

What it's used for

• The address space carries internal corporate infrastructure for a healthcare organization, evidenced by the consistent netname GEISNET2 across all announced prefixes.
• The inventory consists of 7 IPv4 prefixes totaling 65536 addresses and 1 IPv6 prefix, with only 3 observed neighbours, indicating a self-contained internal network rather than a transit or access provider.

Notable

• All registrants for the announced prefixes are listed as Geisinger System Services, matching the AS holder.
• Geisinger is a healthcare system serving communities in central and northeastern Pennsylvania.
• The address inventory is finely subdivided into seven distinct IPv4 blocks within the 159.240.0.0/17 range, suggesting site-by-site segmentation for an internal corporate estate.

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

Announced prefixes

• 159.240.0.0/16
• 2620:112:c000::/40

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS3737 PenTeleData Inc.
• AS14877 FirstLight Fiber, Inc.

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS3737 PenTeleData Inc.
• AS14877 FirstLight Fiber, Inc.