SEMrush CY LTD
BGP inherited
Cluster stats
| Netblocks | 10 · 3,063 IPv4 addresses |
| Registered in | United Kingdom (5) · CY (4) |
| Cluster ID | 210190257 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 12 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
5 weekly snapshots · JSON
10
0 netblocks since 2026-07-05
2026-07-05
peak 10
2026-07-19
IP Ranges (10)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 85.208.96.0/24 | SEMrush CY LTD | BGP | ANNOUNCED | ● high |
| 85.208.97.0/24 | SEMrush CY LTD | BGP | ANNOUNCED | ● high |
| 85.208.99.0/24 | SEMrush CY LTD | BGP | ANNOUNCED | ● high |
| 185.170.167.0/24 | SEMrush CY LTD | BGP | ANNOUNCED | ● high |
| 185.191.171.0/24 | SEMrush CY LTD | BGP | ANNOUNCED | ● high |
| 85.208.96.0/22 | SEMrush CY LTD | RIPE | ALLOCATED PA | ● low |
| 185.170.167.0/24 | SEMrush CY LTD | RIPE | ASSIGNED PA | ● low |
| 185.191.171.0/24 | SEMrush CY LTD | RIPE | ASSIGNED PA | ● low |
| 185.207.237.0/24 | SEMrush CY LTD | RIPE | ASSIGNED PA | ● low |
| 2a09:8540::/29 | SEMrush CY LTD | RIPE | ALLOCATED-BY-RIR | ● low |
Possibly related to this organisation
what's this?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.
- SEMRUSH-CZ via T-Mobile Czech Republic a.s. sub-allocation
- Semrush Development Sl via COLT Technology Services Group Limited sub-allocation
- Semrush CZ CZ via CASABLANCA INT a.s. sub-allocation
Network trust
what's this?
RPKI hygiene: C
how networks compare →
50.0%
of checked blocks have valid RPKI ROA coverage
(5 of 10)
Possible discrepancies (1)
These blocks are registered to SEMrush CY LTD 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.
| 185.207.237.0/24 /24 | authorized for AS396982 — Google LLC |
NIC Handles
ADVANCEDHOSTERS-MNT
AS209366
DUMY-RIPE
DUMY-RIPE
MNT-DATAWEBGLOBAL
MNT-DATAWEBGLOBAL
MNT-DGGB
ORG-SCL66-RIPE
RIPE-NCC-HM-MNT
Semrush_Net
mnt-cy-semrush-1
mnt-cy-semrush-1