RATIONAL International AG

Rational AG
GLEIF verified
LEI
529900OV3ZIPJB2YQZ08
Registered name
RATIONAL International AG
Jurisdiction
CH
Ultimate parent
RATIONAL Aktiengesellschaft
529900K139N6UFJ1A758
Cluster stats
Netblocks21
All fragments 37 blocks across 13 clusters
Cluster ID204401304
RegistryBGP
Owner jurisdictionCH
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 529900OV3ZIPJB2YQZ08
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

Footprint over time

4 weekly snapshots · JSON
21 0 netblocks since 2026-07-05
2026-07-05 peak 21 2026-07-13

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
185.101.112.0/24 Rational AG RIPE ASSIGNED PA ● low
185.101.112.0/22 Rational AG RIPE ALLOCATED 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

Possibly related to this organisation

what's this?
Same name family
Separately-registered clusters whose names share “Rational” — 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.
Combined view of all 13 name-family clusters →
Sub-allocations under carriers
IP blocks an ISP reassigned to a similarly-named customer — decoded from the ISP's own naming convention, not a direct registration.

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 Limited

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