Cat Networks K.K.

Data as of 2026-08-16
BGP inherited
Cluster stats
Netblocks26 · 4,361 IPv4 addresses
IPv6 18 prefixes (largest 2400:ddc0::/32)
Registered in Japan (5) · Czechia (1) · KZ (1) · United States (1)
Cluster ID222419030
RegistryAPNIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 19 shared RIR contact/maintainer handles
Registry names 7 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

8 weekly snapshots · JSON
26 -11 netblocks since 2026-07-05
2026-07-05 peak 37 2026-08-16

IP Ranges (26)

⬇ export CSV
CIDR Org name Registry Status Confidence
23.141.32.0/24 Cat Networks, Inc. ARIN DIRECT ALLOCATION ● high
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

IPv6 ranges (18)

showing the 15 largest allocations
CIDR
2400:ddc0::/32
2602:feda:ae2::/47
2602:fed2:7010::/48
2602:feda:ae3::/48
2602:feda:aee::/48
2602:feda:aef::/48
2a00:2381:d785::/48
2a06:e881:4801::/48
2a06:e881:480f::/48
2a0a:6040:4e04::/48
2a0a:6040:4e11::/48
2a0b:2542:150::/48
2a0b:2542:180::/48
2a0b:2542:182::/48
2a0b:2542:1ee::/48

Network trust

what's this?
RPKI hygiene: C how networks compare →
76.9% of checked blocks have valid RPKI ROA coverage (20 of 26)
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 CN-322 CNKA1-AP CNKA1-AP COA1-ARIN +7 more