Data as of Nov 15, 2026
81.31.89.0/24
No anonymizer space · no proxy exits in 30 daysTDC Holding A/S
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 81.31.80.0/20 | 4,096 | DK-TELEDANMARK-20060406 | TDC Holding A/S (ORG-TD1-RIPE) · DK | ALLOCATED PA | Apr 6, 2006 | postmaster@ |
| └ 81.31.89.0/24 | 256 | TDC-BREDBAANDSADSL-STATIC-NET | TDC BB-ADSL users | ASSIGNED PA | Dec 23, 2011 | postmaster@ via DK-TELEDANMARK-20060406 |
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
Announced by
Covering announcement 81.31.80.0/20
- Prefix
- 81.31.80.0/20
- Announced by
- AS3292 TDC Holding A/S
- Type
- Residential
- Proxy exits
- 5
- RPKI
- RPKI valid
- Netname
- DK-TELEDANMARK-20060406
- Registrant
- TDC Holding A/S
- RIR
- RIPE NCC
Origin network
AS3292
DK
- Name
- TDC Holding A/S
- Type
- Internet provider
- Registered
- Jan 17, 1995
- Domain
- tdcgroup.com
- Website
- www.tdcgroup.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 81.31.80.0/20
81.31.80.0/20
Routing history
- Pattern
- Stable
- First seen
- Mar 2011
- Current origin since
- Mar 2011 · 16 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 81.31.80.0/20 | AS3292 | /20 | RIPE | RPKI valid |
IRR
Route objects on 81.31.80.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS3292 | RIPE | DK-TELEDANMARK-20060406 | AS3292-MNT | Apr 27, 2011 |
Whois
Registration for this announcement
- Range
- 81.
31. 80. 0/ 20 - Netname
- DK-TELEDANMARK-20060406
- Registrant
- TDC Holding A/S
- Registrant country
- DK
- Organization
- TDC Holding A/S (ORG-TD1-RIPE)
- Org country
- DK
- Type
- ALLOCATED PA
- Created
- Apr 6, 2006
- Updated
- Sep 15, 2016
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- DK
- Delegated
- Apr 6, 2006
- Status
- assigned
Report abuse
Abuse contact
- postmaster@
abuse. mail. dk - Name
- TDC A-S Denmark Abuse
- Handle
- TDCA2-RIPE