Data as of Nov 9, 2026
78.31.251.0/24
Anonymizer · Datacenter proxyTngnet B.V. · space held by Koehler Internet Services UG (haftungsbeschraenkt)
Announcement
this exact prefix
RPKI valid
Announced by
Type
Datacenter proxy
Risk
85 / 100 · Critical
Recently moved
Recent change
New origin Nov 3, 2026
from AS174 Cogent Communications, LLC
IPv4 market
Path
Announced by AS47690 since Nov 3, 2026 · 6 days ago
4 · Use
Datacenter proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
Owners leasing their own space
| Name | In 78.31.251.0/24 | /24s |
|---|---|---|
| Koehler Internet Services UG (haftungsbeschraenkt) | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
78.31.251.0/24
From the registry to its use
- Sep 1, 2009– Oct 22, 2009AnnouncedAS11730 Progressive Finance
- Nov 26, 2020Registry recordKoehler Internet Services UG (haftungsbeschraenkt)ALLOCATED PA78.31.248.0/22
- May 12, 2025– May 23, 2025
- May 12, 2025– Jun 4, 2025
- May 16, 2025ReallocatedKoehler Internet Services UG (haftungsbeschraenkt)SUB-ALLOCATED PA78.31.250.0/23
- May 24, 2025– Oct 26, 2025
- Oct 15, 2025– Nov 2, 2026
- Oct 23, 2025Route objectIPXORIPE route object for AS174 Cogent Communications, LLC, maintainer NETUTILS-MNT
- Oct 24, 2025Route objectIPXORADB route object for AS174 Cogent Communications, LLC, maintainer MAINT-AS834
- Oct 28, 2026Route objectIPXORIPE route object for AS47690 Tngnet B.V., maintainer NETUTILS-MNT
- Oct 29, 2026Route objectIPXORADB route object for AS47690 Tngnet B.V., maintainer MAINT-AS834
- Nov 3, 2026– today
- todayLeased fromIPXOIP broker
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 |
|---|---|---|---|---|---|---|
| 78.31.248.0/22 | 1,024 | DE-KIS57-20180619 | Koehler Internet Services UG (haftungsbeschraenkt) (ORG-KISU57-RIPE) · DE | ALLOCATED PA | Nov 26, 2020 | abuse@ |
| └ 78.31.250.0/23 | 512 | DE-IPXO-20250516 | Koehler Internet Services UG (haftungsbeschraenkt) (ORG-KISU57-RIPE) · DE | SUB-ALLOCATED PA | May 16, 2025 | report@ |
Network & registry
IPv4 market
Holder
- Organization
- Koehler Internet Services UG (haftungsbeschraenkt)
- Handle
- ORG-KISU57-RIPE
- Range
- 78.
31. 248. 0/ 22 - Registration type
- ALLOCATED PA
- Record created
- Nov 26, 2020
Origin network
AS47690
NL
- Name
- Tngnet B.V.
- Type
- Hosting
- Registered
- Mar 21, 2016
- Domain
- tngnet.com
- Website
- www.tngnet.com
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Sep 2009
- Current origin since
- Nov 3, 2026 · under a month
- Origin networks
- 6
- Last change of origin
- Nov 3, 2026
Recorded history
History
- Handoffs
- 5
RPKI
Route origin authorizations
Whois
Registration for this announcement
- Range
- 78.
31. 250. 0/ 23 - Netname
- DE-IPXO-20250516
- Registrant
- Koehler Internet Services UG (haftungsbeschraenkt)
- Registrant country
- DE
- Organization
- Koehler Internet Services UG (haftungsbeschraenkt) (ORG-KISU57-RIPE)
- Org country
- DE
- Type
- SUB-ALLOCATED PA
- Created
- May 16, 2025
- Updated
- May 16, 2025
- Maintainer
- de-kis2-1-mnt
- RIR
- RIPE NCC
- Country
- DE
- Delegated
- Jun 19, 2018
- Status
- assigned
Report abuse
Abuse contact
- report@
abuseradar. com - Name
- Internet Utilities Abuse Contact
- Handle
- AR834