Data as of Nov 7, 2026
81.173.6.0/24
No anonymizer space · no proxy exits in 30 daysGLASFASER RUHR GmbH & Co. KG
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 |
|---|---|---|---|---|---|---|
| 81.173.6.0/24 | 256 | DE-GLASFASER-20030219 | GLASFASER RUHR GmbH & Co. KG (ORG-GBGC3-RIPE) · DE | ALLOCATED PA | May 25, 2018 | abuse@ |
| └ 81.173.6.8/29 | 8 | KEYSIGHT-TECHNOLOGIES-NET | Keysight Technologies Deutschland GmbH | ASSIGNED PA | Jan 26, 2024 | abuse@ via DE-GLASFASER-20030219 |
| └ 81.173.6.16/29 | 8 | KEYSIGHT-TECHNOLOGIES-NET | Keysight Technologies Deutschland GmbH | ASSIGNED PA | Jan 26, 2024 | abuse@ via DE-GLASFASER-20030219 |
| └ 81.173.6.24/29 | 8 | KEYSIGHT-TECHNOLOGIES-NET | Keysight Technologies Deutschland GmbH | ASSIGNED PA | Jan 26, 2024 | abuse@ via DE-GLASFASER-20030219 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
256 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 232 | 91% | 2 | |
| Business | 24 | 9.4% | 3 |
Network & registry
Origin network
AS12329
DE
- Name
- GLASFASER RUHR GmbH & Co. KG
- Type
- Internet provider
- Registered
- Mar 16, 1999
- Domain
- glasfaser-ruhr.de
- Website
- www.glasfaser-ruhr.de/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2018
- Current origin since
- May 2021 · 5.5 yr
- Origin networks
- 3
- Last change of origin
- May 2021
Recorded history
History
- Handoffs
- 2
Whois
Registration for this announcement
- Range
- 81.
173. 6. 0/ 24 - Netname
- DE-GLASFASER-20030219
- Registrant
- GLASFASER RUHR GmbH & Co. KG
- Registrant country
- DE
- Organization
- GLASFASER RUHR GmbH & Co. KG (ORG-GBGC3-RIPE)
- Org country
- DE
- Type
- ALLOCATED PA
- Created
- May 25, 2018
- Updated
- May 23, 2022
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- DE
- Delegated
- Feb 19, 2003
- Status
- assigned
Report abuse
Abuse contact
- abuse@
glasfaser-ruhr. net - Name
- GLASFASER RUHR Abuse Contact
- Handle
- GRAC5-RIPE