Maerz Network Services GmbH
BGP inherited
Cluster stats
| Netblocks | 13 · 2,127 IPv4 addresses |
| Cluster ID | 204774626 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 10 shared RIR contact/maintainer handles |
| Registry names | 6 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
4 weekly snapshots · JSON
13
0 netblocks since 2026-07-05
2026-07-05
peak 13
2026-07-13
IP Ranges (13)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 45.142.56.0/27 | UNKNOWN | RIPE | ASSIGNED PA | ● high |
| 45.142.56.0/22 | Maerz Network Services GmbH | BGP | ANNOUNCED | ● high |
| 45.142.56.32/28 | UNKNOWN | RIPE | ASSIGNED PA | ● high |
| 45.142.56.48/29 | UNKNOWN | RIPE | ASSIGNED PA | ● high |
| 45.142.56.56/29 | UNKNOWN | RIPE | ASSIGNED PA | ● high |
| 2a0e:d640::/29 | Maerz Network Services GmbH | BGP | ANNOUNCED | ● high |
| 45.142.56.0/22 | Maerz Network Services GmbH | RIPE | ALLOCATED PA | ● medium |
| 2a0e:d640::/29 | Maerz Network Services GmbH | RIPE | ALLOCATED-BY-RIR | ● medium |
| 62.157.169.168/29 | MAERZ-NETWORK-SERVICES-ETTLINGEN-NET | RIPE | ASSIGNED PA | ● low |
| 85.183.133.64/29 | MAERZ-NETWORK-NET | RIPE | ASSIGNED PA | ● low |
| 217.239.136.32/29 | MAERZ-NETWORK-SERVICE-ISMANING-NET | RIPE | ASSIGNED PA | ● low |
| 2003:5a:4053::/48 | MAERZ-NETWORK-SERVICES-ETTLINGEN-NET | RIPE | ASSIGNED | ● low |
| 2003:101:4029::/48 | MAERZ-NETWORK-SERVICE-ISMANING-NET | RIPE | ASSIGNED | ● low |
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(13 of 13)
Possible discrepancies (2)
These blocks are registered to Maerz Network Services GmbH 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.
| 2003:5a:4053::/48 /48 | authorized for AS3320 — Deutsche Telekom AG |
| 2003:101:4029::/48 /48 | authorized for AS3320 — Deutsche Telekom AG |
NIC Handles
AS208372
DTAG-NIC
DUMY-RIPE
DUMY-RIPE
HANSENET-NOC
ORG-MNSG3-RIPE
RIPE-NCC-HM-MNT
de-maerz-MNT
de-maerz-MNT
lir-de-maerz-1-MNT