Cat Networks K.K.
BGP inherited
Cluster stats
| Netblocks | 25 · 4,098 IPv4 addresses |
| Registered in | Japan (5) · Czechia (1) · KZ (1) |
| Cluster ID | 213395526 |
| Registry | APNIC |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 14 shared RIR contact/maintainer handles |
| Registry names | 6 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
6 weekly snapshots · JSON
25
-12 netblocks since 2026-07-05
2026-07-05
peak 37
2026-07-26
IP Ranges (25)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 218.100.9.48/32 | Cat Networks K.K. | PEERINGDB | ASSIGNED | ● high |
| 2001:de8:c:2:0:2:3748:1/128 | Cat Networks K.K. | PEERINGDB | ASSIGNED | ● high |
| 2602:fed2:7010::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2602:feda:ae2::/47 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2602:feda:ae3::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2602:feda:aee::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2602:feda:aef::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2a06:e881:4801::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2a06:e881:480f::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2a0a:6040:4e04::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2a0a:6040:4e11::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2a0b:2542:150::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2a0b:2542:180::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2a0b:2542:182::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2a0b:2542:1ee::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2a0b:2542:1ff::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 2a10:2f01:3dc::/48 | Cat Networks K.K. | BGP | ANNOUNCED | ● high |
| 85.93.123.132/30 | CAT-CUT | RIPE | ASSIGNED PA | ● low |
| 103.19.0.0/22 | Cat Networks K.K. | APNIC | ALLOCATED PORTABLE | ● low |
| 103.88.44.0/22 | Cat Networks K.K. | APNIC | ALLOCATED PORTABLE | ● low |
| 103.193.128.0/22 | Cat Networks K.K. | APNIC | ALLOCATED PORTABLE | ● low |
| 203.96.236.0/22 | Cat Networks K.K. | APNIC | ALLOCATED PORTABLE | ● low |
| 213.157.48.40/30 | Cat_Kaz | RIPE | ASSIGNED PA | ● low |
| 2400:ddc0::/32 | Cat Networks K.K. | APNIC | ALLOCATED PORTABLE | ● low |
| 2a00:2381:d785::/48 | CAT-AND | RIPE | AGGREGATED-BY-LIR | ● low |
Network trust
what's this?
RPKI hygiene: C
how networks compare →
76.0%
of checked blocks have valid RPKI ROA coverage
(19 of 25)
Possible discrepancies (6)
These blocks are registered to Cat Networks K.K. but cryptographically authorized for a different, unrelated network (3 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2400:ddc0::/32 /32 | authorized for AS4785 — xTom Limited |
| 2a00:2381:d785::/48 /48 | authorized for AS2856 — British Telecommunications Limited |
| 103.88.44.0/22 /22 | authorized for AS4785 — xTom Limited |
| 203.96.236.0/22 /22 | authorized for AS3258 — xTom Japan Corporation |
| 103.193.128.0/22 /22 | authorized for AS3258 — xTom Japan Corporation |
| 103.19.0.0/22 /22 | authorized for AS3258 — xTom Japan Corporation |
NIC Handles
AC1582-AP
APNIC-HM
AS134666
AS138181
AS23748
ASTEL-MNT
ATR-MNT
BTNET-MNT
CNKA1-AP
CNKA1-AP
DIALTELECOM-MNT
DUMY-RIPE
+2 more