Data as of Nov 14, 2026

198.102.63.0/24

No anonymizer space · no proxy exits in 30 days

Environmental Systems Research Institute

Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
198.102.32.0/198,192NETBLK-ESRI198Environmental Systems Research Institute (ESRI-1)Direct AllocationApr 16, 1993abuse@esri.com
└ 198.102.63.0/24256NETBLK-ESRI198-102-63Environmental Systems Research Institute (C00002162) · USReassignedApr 16, 1993abuse@esri.com
via NETBLK-ESRI198

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Stable
First seen
May 2005
Current origin since
May 2005 · 22 yr
Origin networks
1