Data as of Nov 12, 2026
5.83.157.0/24
No anonymizer space · no proxy exits in 30 daysMarco Andreas Martin Jahn · space held by GHOSTnet GmbH
Announcement
this exact prefix
RPKI valid
Announced by
Type
Unknown
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Oct 24, 2026
from AS12586 GHOSTnet GmbH
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 5.83.128.0/19 | 8,192 | DE-GHOSTNET-20120615 | GHOSTnet GmbH (ORG-GG3-RIPE) · DE | ALLOCATED PA | Mar 23, 2016 | abuse@ |
| └ 5.83.157.0/24 | 256 | MAM-JAHN | Marco Andreas Martin Jahn (ORG-MAMJ6-RIPE) · DE | ASSIGNED PA | Oct 21, 2026 | abuse@ via DE-GHOSTNET-20120615 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
IPv4 market
Holder
- Organization
- GHOSTnet GmbH
- Handle
- ORG-GG3-RIPE
- Range
- 5.
83. 128. 0/ 19 - Registration type
- ALLOCATED PA
- Record created
- Mar 23, 2016
Origin network
AS201687
DE
- Name
- Marco Andreas Martin Jahn
- Registered
- Feb 4, 2026
- Domain
- mam-jahn.de
- Website
- mam-jahn.de
- Industry
- Investment, Portfolio Management, Pensions and Funds
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Jul 2012
- Current origin since
- Oct 24, 2026 · under a month
- Origin networks
- 4
- Last change of origin
- Oct 24, 2026
Recorded history
History
- Handoffs
- 5
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 5.83.157.0/24 | AS201687 | /24 | RIPE | RPKI valid |
| 5.83.128.0/19 | AS12586 | /32 | RIPE | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS201687 | RIPE | GHOSTNET-MNT | Oct 21, 2026 |
Whois
Registration for this announcement
- Range
- 5.
83. 157. 0/ 24 - Netname
- MAM-JAHN
- Registrant
- Marco Andreas Martin Jahn
- Registrant country
- DE
- Organization
- Marco Andreas Martin Jahn (ORG-MAMJ6-RIPE)
- Org country
- DE
- Type
- ASSIGNED PA
- Created
- Oct 21, 2026
- Updated
- Oct 22, 2026
- Maintainer
- GHOSTNET-MNT
- RIR
- RIPE NCC
- Country
- DE
- Delegated
- Jun 15, 2012
- Status
- assigned