RATIONAL Aktiengesellschaft
Rational AG
LEI
529900K139N6UFJ1A758
Registered name
RATIONAL Aktiengesellschaft
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks21
All fragments 37 blocks across 13 clusters
Cluster ID191599174
RegistryBGP
Owner jurisdictionDE
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Legal identityLEI 529900K139N6UFJ1A758
Shared handles clustered on 14 shared RIR contact/maintainer handles
Registry names 8 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

IP Ranges (21)

⬇ export CSV
CIDR Org name Registry Status Confidence
185.101.112.0/22 Rational AG BGP ANNOUNCED ● high
185.101.113.0/24 Rational AG BGP ANNOUNCED ● high
185.101.114.0/24 Rational AG BGP ANNOUNCED ● high
185.101.115.0/24 Rational AG BGP ANNOUNCED ● high
2a0a:dc80::/29 Rational AG BGP ANNOUNCED ● high
62.52.42.24/30 RATIONAL RIPE ASSIGNED PA ● low
62.52.44.240/29 RATIONAL RIPE ASSIGNED PA ● low
62.53.229.112/28 RATIONAL RIPE ASSIGNED PA ● low
80.65.13.204/30 RATIONAL-ES-IX-A RIPE ASSIGNED PA ● low
92.79.73.88/29 RATIONAL-NET RIPE ASSIGNED PA ● low
149.126.23.140/30 RATIONAL-LAN RIPE ASSIGNED PA ● low
185.101.112.0/22 Rational AG RIPE ALLOCATED PA ● low
185.101.112.0/24 Rational AG RIPE ASSIGNED PA ● low
185.101.113.0/24 Rational-AG-LL RIPE ASSIGNED PA ● low
185.101.114.0/24 Rational-AG-LL RIPE ASSIGNED PA ● low
185.101.115.0/24 Rational-AG-LL RIPE ASSIGNED PA ● low
193.129.98.192/28 RATIONAL RIPE ASSIGNED PA ● low
213.20.238.16/29 RATIONAL RIPE ASSIGNED PA ● low
213.122.167.0/27 RATIONAL-UK RIPE ASSIGNED PA ● low
2a00:2381:cfe2::/48 RATIONAL-UK RIPE AGGREGATED-BY-LIR ● low
2a0a:dc80::/29 Rational AG RIPE ALLOCATED-BY-RIR ● low

Network trust

what's this?
RPKI hygiene: D how networks compare →
42.9% of checked blocks have valid RPKI ROA coverage (9 of 21)
Possible discrepancies (1)

These blocks are registered to Rational AG 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.

2a00:2381:cfe2::/48 /48 authorized for AS2856 — British Telecommunications PLC

NIC Handles

ARCOR-MNT AS12666-MNT AS1849-MNT AS206597 BTNET-MNT DUMY-RIPE DUMY-RIPE INTERXION-MNT MDA-Z OBIT-MNT ORG-RA531-RIPE RIPE-NCC-HM-MNT +2 more