EMERSON a.s.
EMERSON-SE
LEI
315700IRWU9QDJQ75X58
Registered name
EMERSON a.s.
Jurisdiction
CZ
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks12
All fragments 109 blocks across 33 clusters
Cluster ID191873818
RegistryAPNIC
Owner jurisdictionCZ
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Legal identityLEI 315700IRWU9QDJQ75X58
Shared handles clustered on 14 shared RIR contact/maintainer handles
Registry names 5 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

2 weekly snapshots · JSON
12 0 netblocks since 2026-07-05
2026-07-05 peak 12 2026-07-06

IP Ranges (12)

⬇ export CSV
CIDR Org name Registry Status Confidence
117.252.5.184/29 EMERSON APNIC ASSIGNED NON-PORTABLE ● high
83.240.157.216/29 EMERSON-NET RIPE ASSIGNED PA ● low
88.131.73.136/29 EMERSON-NET RIPE ASSIGNED PA ● low
212.209.57.128/29 EMERSON-SE RIPE ASSIGNED PA ● low
212.209.57.136/29 EMERSON-SE RIPE ASSIGNED PA ● low
212.209.57.144/29 EMERSON-SE RIPE ASSIGNED PA ● low
212.209.57.152/29 EMERSON-SE RIPE ASSIGNED PA ● low
212.209.57.160/29 EMERSON-SE RIPE ASSIGNED PA ● low
212.209.57.168/29 EMERSON-SE RIPE ASSIGNED PA ● low
212.209.119.192/28 EMERSON-SE RIPE ASSIGNED PA ● low
217.148.220.40/30 Emerson RIPE ASSIGNED PA ● low
2a00:2381:37ab::/48 EMERSON-GROUP-LTD RIPE AGGREGATED-BY-LIR ● low

Network trust

what's this?
RPKI hygiene: D how networks compare →
41.7% of checked blocks have valid RPKI ROA coverage (5 of 12)
Possible discrepancies (1)

These blocks are registered to EMERSON-SE 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.

2a00:2381:37ab::/48 /48 authorized for AS2856 — British Telecommunications PLC

NIC Handles

AB1061-AP AS15525-MNT AS1826-AP AS1827-AP BTNET-MNT CDN1-AP DUMY-RIPE DUMY-RIPE MAINT-IN-DOT NC83-AP NIG5-AP SE-UUNET-MNT +2 more