ISN company, s.r.o.

ISN Communications
GLEIF verified
LEI
315700BAB6II2GEV3677
Registered name
ISN company, s.r.o.
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks75
All fragments 84 blocks across 8 clusters
Cluster ID204415742
RegistryAFRINIC
Owner jurisdictionCZ
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 315700BAB6II2GEV3677
Shared handles clustered on 38 shared RIR contact/maintainer handles
Registry names 12 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

4 weekly snapshots · JSON
75 0 netblocks since 2026-07-05
2026-07-05 peak 75 2026-07-13

IP Ranges (75)

showing 50 of 75 — see all⬇ export CSV
CIDR Org name Registry Status Confidence
67.63.32.0/25 ISN TELCOM ARIN ● high
67.63.32.0/22 ISN Communications BGP ANNOUNCED ● high
67.63.36.0/22 ISN Communications BGP ANNOUNCED ● high
67.63.40.0/22 ISN Communications BGP ANNOUNCED ● high
67.63.44.0/22 ISN Communications BGP ANNOUNCED ● high
68.67.208.0/22 ISN Communications BGP ANNOUNCED ● high
68.67.212.0/22 ISN Communications BGP ANNOUNCED ● high
68.67.216.0/22 ISN Communications BGP ANNOUNCED ● high
68.67.220.0/22 ISN Communications BGP ANNOUNCED ● high
198.89.228.0/24 ISN Communications BGP ANNOUNCED ● high
198.89.229.0/24 ISN Communications BGP ANNOUNCED ● high
198.89.230.0/24 ISN Communications BGP ANNOUNCED ● high
198.89.231.0/24 ISN Communications BGP ANNOUNCED ● high
198.136.153.0/24 ISN Communications BGP ANNOUNCED ● high
202.97.230.0/24 ISN APNIC ASSIGNED NON-PORTABLE ● high
202.97.232.0/25 ISN APNIC ASSIGNED NON-PORTABLE ● high
207.231.208.0/26 ISN TELCOM ARIN ● high
207.231.208.0/22 ISN Communications BGP ANNOUNCED ● high
207.231.212.0/22 ISN Communications BGP ANNOUNCED ● high
207.231.216.0/22 ISN Communications BGP ANNOUNCED ● high
207.231.220.0/22 ISN Communications BGP ANNOUNCED ● high
41.75.88.24/30 ISN AFRINIC ASSIGNED PA ● low
41.207.255.84/30 ISN_GH_P2P AFRINIC ASSIGNED PA ● low
41.207.255.200/29 ISN_GH AFRINIC ASSIGNED PA ● low
102.202.184.0/24 ISN-LAG-NG AFRINIC ASSIGNED PA ● low
102.202.185.0/24 ISN-LAG-NG AFRINIC ASSIGNED PA ● low
102.202.186.0/24 ISN-LAG-NG AFRINIC ASSIGNED PA ● low
102.202.187.0/24 ISN-LAG-NG AFRINIC ASSIGNED PA ● low
103.9.132.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
103.9.133.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
103.9.134.0/24 ISN-BD APNIC ALLOCATED NON-PORTABLE ● low
103.9.135.0/24 ISN-BD APNIC ALLOCATED NON-PORTABLE ● low
180.92.224.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.225.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.226.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.227.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.228.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.229.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.230.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.231.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.232.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.233.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.234.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.235.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.236.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.237.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.238.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
180.92.239.0/24 ISN-BD APNIC ASSIGNED NON-PORTABLE ● low
196.1.204.154/31 ISN_COMPANY AFRINIC ASSIGNED PA ● low
197.253.16.16/29 ISN AFRINIC ASSIGNED PA ● low

Possibly related to this organisation

what's this?
Same name family
Separately-registered clusters whose names share “ISN” — often per-country or per-system registrations of the same brand, occasionally a different organisation sharing the name. Not counted in this organisation's own footprint.

Network trust

what's this?
RPKI hygiene: C how networks compare →
68.0% of checked blocks have valid RPKI ROA coverage (51 of 75)
Possible discrepancies (41)

These blocks are registered to ISN Communications but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

202.97.230.0/24 /24 authorized for AS4837 — CNCGROUP IP network of ShangHai IDC
203.188.240.0/24 /24 authorized for AS9832 — Information Services Network Limited
203.188.241.0/24 /24 authorized for AS9832 — Information Services Network Limited
203.188.242.0/24 /24 authorized for AS9832 — Information Services Network Limited
203.188.243.0/24 /24 authorized for AS9832 — Information Services Network Limited
203.188.244.0/24 /24 authorized for AS9832 — Information Services Network Limited
203.188.245.0/24 /24 authorized for AS9832 — Information Services Network Limited
203.188.246.0/24 /24 authorized for AS9832 — Information Services Network Limited
203.188.247.0/24 /24 authorized for AS9832 — Information Services Network Limited
203.188.248.0/24 /24 authorized for AS9832 — Information Services Network Limited
203.188.249.0/24 /24 authorized for AS9832 — Information Services Network Limited
203.188.250.0/24 /24 authorized for AS9832 — Information Services Network Limited
203.188.251.0/24 /24 authorized for AS9832 — Information Services Network Limited
203.188.252.0/24 /24 authorized for AS9832 — Information Services Network Limited
203.188.253.0/24 /24 authorized for AS9832 — Information Services Network Limited
+26 more — see the REST API

NIC Handles

AAIA1-AFRINIC AAIA1-AFRINIC AI480-AP AS32228 C03200753 C03201879 DEVIS12-ARIN DUMY-RIPE DUMY-RIPE HA169-AP HA169-AP HOS-GUN +26 more