Catalyst Host LLC

BGP inherited
Cluster stats
Netblocks54
All fragments 110 blocks across 18 clusters
Cluster ID204417997
RegistryAPNIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 17 shared RIR contact/maintainer handles
Registry names 6 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

4 weekly snapshots · JSON
54 +2 netblocks since 2026-07-05
2026-07-05 peak 54 2026-07-13

IP Ranges (54)

showing 50 of 54 — see all — ⬇ export CSV
CIDR Org name Registry Status Confidence
23.163.208.0 – 23.163.213.255 Catalyst Host LLC ARIN ● high
23.163.209.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
23.163.210.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
23.163.211.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
23.163.212.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
23.163.213.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
23.163.216.0/21 Catalyst Host LLC ARIN ● high
23.163.216.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
23.163.217.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
23.163.218.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
23.163.219.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
23.163.220.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
23.163.221.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
23.163.222.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
23.163.223.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
37.49.144.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
37.49.147.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
64.40.24.0/22 Catalyst Host LLC ARIN ● high
64.40.24.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
64.40.25.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
64.40.26.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
64.40.27.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
94.74.171.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
104.193.224.0/22 Catalyst Host LLC ARIN ● high
104.193.224.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
104.193.225.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
104.193.226.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
104.193.227.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
109.203.161.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
109.203.163.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
109.203.166.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
116.12.195.144/28 CATALYST-SG APNIC ASSIGNED NON-PORTABLE ● high
162.250.232.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
162.250.232.0/22 Catalyst Host LLC ARIN ● high
162.250.233.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
162.250.234.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
162.250.235.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
173.0.4.0/22 Catalyst Host LLC BGP ANNOUNCED ● high
176.46.129.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
176.46.130.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
176.46.133.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
176.46.135.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
176.46.137.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
199.181.238.0/24 Catalyst Host LLC BGP ANNOUNCED ● high
2602:ffd1:1::/48 Catalyst Host LLC BGP ANNOUNCED ● high
2602:ffd1:2::/48 Catalyst Host LLC BGP ANNOUNCED ● high
2602:ffd1:3::/48 Catalyst Host LLC BGP ANNOUNCED ● high
2602:ffd1:6::/48 Catalyst Host LLC BGP ANNOUNCED ● high
2602:ffd1:7::/48 Catalyst Host LLC BGP ANNOUNCED ● high
2602:ffd1:8::/48 Catalyst Host LLC BGP ANNOUNCED ● high

Network trust

what's this?
RPKI hygiene: B how networks compare →
92.6% of checked blocks have valid RPKI ROA coverage (50 of 54)
Possible discrepancies (1)

These blocks are registered to Catalyst Host LLC but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

109.203.163.0/24 /24 authorized for AS203963 — SPDNet Telekomunikasyon Hizmetleri Bilgi Teknolojileri Taahhut Sanayi Ve Ticaret A.S.

NIC Handles

AE278-AP AG545-AP AG545-AP AS2068-AP AS393336 CATAL7-ARIN CATAL7-ARIN CATAL7-ARIN CATAL7-ARIN CATAL7-ARIN CATAL7-ARIN CHL-340 +5 more