E. I. Catalyst

Data as of 2026-10-04
BGP inherited
This organisation
Netblocks4 · 8,448 IPv4 addresses
IPv6 1 prefix (largest 2001:1928::/32)
Also registered under this name 8 netblocks across 2 separate records
Record ID245503565
RegistryBGP
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 6 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (4)

⬇ export CSV
CIDR Org name Registry Status Confidence
66.96.16.0/20 E. I. Catalyst ARIN DIRECT ALLOCATION ● high
72.0.64.0/20 E. I. Catalyst BGP ANNOUNCED ● high
205.189.139.0/24 E. I. Catalyst BGP ANNOUNCED ● high
2001:1928::/32 E. I. Catalyst BGP ANNOUNCED ● high

IPv6 ranges (1)

Footprint over time

9 weekly snapshots · JSON
7 +1 netblocks since 2026-07-26
2026-07-26 peak 7 2026-10-04

Other domains hosted in this network

what's this?

Network trust

what's this?
RPKI hygiene: B how networks compare →
85.7% of checked blocks have valid RPKI ROA coverage (6 of 7)
No discrepancies found among checked blocks.

NIC Handles

ABUSE392-ARIN ARINC6-ARIN AS30528 EIC-28 NOC1352-ARIN NOC1352-ARIN