Matthew Daniel Brown LLC
Cluster stats
| Netblocks | 6 |
| All fragments | 237 blocks across 122 clusters |
| Cluster ID | 191659681 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 2 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
2 weekly snapshots · JSON
6
0 netblocks since 2026-07-05
2026-07-05
peak 6
2026-07-06
IP Ranges (6)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 23.154.220.0/24 | Matthew Daniel Brown LLC | BGP | ANNOUNCED | ● high |
| 23.144.164.0/24 | ADVENTURECK | BGP | ANNOUNCED | ● medium |
| 23.144.188.0/24 | ADVENTURECK | BGP | ANNOUNCED | ● medium |
| 23.147.28.0/24 | ADVENTURECK | BGP | ANNOUNCED | ● medium |
| 23.151.236.0/24 | ADVENTURECK | BGP | ANNOUNCED | ● medium |
| 23.151.252.0/24 | ADVENTURECK | BGP | ANNOUNCED | ● medium |
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(6 of 6)
Possible discrepancies (6)
These blocks are registered to Matthew Daniel Brown LLC 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.
| 23.144.164.0/24 /24 | authorized for AS26187 — ADVENTURECK |
| 23.144.188.0/24 /24 | authorized for AS26187 — ADVENTURECK |
| 23.147.28.0/24 /24 | authorized for AS26187 — ADVENTURECK |
| 23.151.236.0/24 /24 | authorized for AS26187 — ADVENTURECK |
| 23.151.252.0/24 /24 | authorized for AS26187 — ADVENTURECK |
| 23.154.220.0/24 /24 | authorized for AS26187 — ADVENTURECK |
NIC Handles
AS26187
AS402285