Autonomous system
AS15516 DK-DANSKKABELTV
Residential RIPE Cable/DSL/ISP
Summary
DKTV
isp telecom media infrastructure
Most addresses answer with the words "generic hostname" written into the name.
What it's used for
- A cable television and broadband operator. Ten IPv4 prefixes and three IPv6 prefixes announced from Denmark, three hundred and forty thousand addresses, across fifty observed BGP neighbours.
Notable
- Nine of the twelve answering addresses return the full address in ordinary forward order, followed by a label spelling out that the name is generic, under a domain belonging to another brand.
- Two more answer under a second unrelated brand's domain, with a short code, a site code and a word for customer.
- One answers under a third domain, this one closest to the operator's own name.
- Blocks range from two
/15prefixes down to a/22, with allocation dates spread across eight years. - Eighteen addresses were queried for reverse DNS and twelve returned a name.
Interesting
- Three brands in one reverse zone is an acquisition history readable from DNS. Each acquired network kept its own naming domain, and nothing was ever consolidated.
- Writing the address in forward order into the name is unusual. Almost everyone reverses the octets, which makes the two
/15blocks here read backwards compared to most of the internet. - Announcing the address in the name at all, and labelling it generic, tells anyone looking that these are unassigned residential addresses rather than named hosts.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 2 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Neutral Internet Exchange | Amsterdam, Netherlands | 193.239.118.87 |
| Danish Internet Exchange | Copenhagen, Denmark | 192.38.7.64 |
Transit providers
13 upstream, 0 downstream and 20 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 10 prefixes · 341K addresses IPv6 3 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DK | Denmark | 13 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS15516- Registry name
- DK-DANSKKABELTV
- Registrant
- AS15516-MNT
- Abuse contact
- noc@danskkabeltv.dk
- Registered
- 2002-05-27
- Last changed
- 2019-08-30
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Dansk Kabel TV
- Also known as
- Arrownet A/S, Arrowhead A/S, Aplus A/S, ComX
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
AS-DK-DANSKKABELTV- Present at
- 1 exchanges
- Facilities
- 3 facilities
- Website
- http://www.danskkabeltv.dk
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 13 valid, 0 with no ROA
- ROAs
- 13 authorising AS15516
- ASPA
- no ASPA record
- IRR
- 100% registered · 13 of 13 announcements
- Route objects
- 14 naming AS15516
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 440 networks and 1,773 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere