MAINFRAME & CYBERNETIC SYSTEMS LIMITED
Cluster stats
| Netblocks | 99 |
| All fragments | 101 blocks across 3 clusters |
| Cluster ID | 191597124 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 16 shared RIR contact/maintainer handles |
| Registry names | 3 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
2 weekly snapshots · JSON
99
0 netblocks since 2026-07-05
2026-07-05
peak 99
2026-07-06
IP Ranges (99)
showing 50 of 99 — see all — ⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 5.57.80.217/32 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | PEERINGDB | ASSIGNED | ● high |
| 5.133.184.0/22 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 5.133.188.0/23 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 5.133.191.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 31.3.208.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 31.3.211.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 31.3.212.0/23 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 31.3.221.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 31.3.223.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 37.58.24.0/22 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 37.58.29.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 62.69.143.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 77.73.11.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 77.73.15.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 78.40.56.0/23 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 78.40.61.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.64.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.66.0/23 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.72.0/23 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.75.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.76.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.80.0/22 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.81.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.87.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.88.0/22 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.88.0/21 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.92.0/23 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.92.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.94.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 81.27.95.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 82.197.72.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 84.45.8.0/21 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 84.45.16.0/20 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 84.45.32.0/19 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 84.45.64.0/18 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 84.45.75.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 85.159.88.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 85.159.90.0/23 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 85.159.95.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 109.68.64.0/23 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 109.68.68.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 109.104.96.0/23 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 109.104.98.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 109.104.100.0/23 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 109.104.105.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 109.104.112.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 109.104.114.0/24 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 109.104.116.0/22 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 109.104.120.0/21 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
| 109.104.122.0/23 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | BGP | ANNOUNCED | ● high |
Network trust
what's this?
RPKI hygiene: D
how networks compare →
24.2%
of checked blocks have valid RPKI ROA coverage
(24 of 99)
Possible discrepancies (1)
These blocks are registered to MAINFRAME & CYBERNETIC SYSTEMS LIMITED 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.
| 31.3.217.0/24 /24 | authorized for AS200468 — ALVAREZ & MARSAL DISPUTES AND INVESTIGATIONS LLP |
NIC Handles
AS25577
AS25577
AS49503
BUNKER-MNT
C4L-MNT
C4l-MNT
DUMY-RIPE
DUMY-RIPE
IDEGROUP-MNT
ORG-MCSL9-RIPE
RIPE-NCC-END-MNT
RIPE-NCC-HM-MNT
+4 more