Montmay Sp. z o.o.
Data as of 2026-07-26
BGP inherited
Cluster stats
| Netblocks | 8 · 1,536 IPv4 addresses |
| IPv6 | 1 prefix (largest 2a0b:540::/29) |
| Cluster ID | 213256124 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 8 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
6 weekly snapshots · JSON
8
0 netblocks since 2026-07-05
2026-07-05
peak 8
2026-07-26
IP Ranges (8)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 81.15.239.0/24 | Montmay Sp. z o.o. | BGP | ANNOUNCED | ● high |
| 81.15.242.0/24 | Montmay Sp. z o.o. | BGP | ANNOUNCED | ● high |
| 185.204.192.0/24 | Montmay Sp. z o.o. | BGP | ANNOUNCED | ● high |
| 185.204.193.0/24 | Montmay Sp. z o.o. | BGP | ANNOUNCED | ● high |
| 185.204.194.0/24 | Montmay Sp. z o.o. | BGP | ANNOUNCED | ● high |
| 185.204.195.0/24 | Montmay Sp. z o.o. | BGP | ANNOUNCED | ● high |
| 185.204.192.0/22 | Montmay Sp. z o.o. | RIPE | ALLOCATED PA | ● low |
| 2a0b:540::/29 | Montmay Sp. z o.o. | RIPE | ALLOCATED-BY-RIR | ● low |
IPv6 ranges (1)
| CIDR |
|---|
| 2a0b:540::/29 |
Network trust
what's this?
RPKI hygiene: B
how networks compare →
87.5%
of checked blocks have valid RPKI ROA coverage
(7 of 8)
Possible discrepancies (2)
These blocks are registered to Montmay Sp. z o.o. 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.
| 81.15.239.0/24 /24 | authorized for AS20804 — Exatel S.A. |
| 81.15.242.0/24 /24 | authorized for AS20804 — Exatel S.A. |
NIC Handles
AS205813
DUMY-RIPE
DUMY-RIPE
MNT-EXATEL
ORG-MSZO59-RIPE
RIPE-NCC-HM-MNT
pl-montmay-1-mnt
pl-montmay-1-mnt