Home ASN LookupAS207727

AS207727 A5N Asbjorn Sloth Tonnesen trading as a5n

🇩🇰

Org handle: ORG-ASTT2-RIPE

RIPE NCCallocatedASPA Published

Announced Prefixes (BGP)

9total

3 IPv46 IPv6

IPv4 Addresses

Allocated (RIR)1,024

Announced (BGP)768

IPv6 Addresses

Allocated (RIR)6.3×10²⁹

Announced (BGP)7.2×10²⁴

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇩🇰 DK

RIR

RIPE NCC

Status

allocated

Allocated

2019-12-06

Routing hygiene

Score 7/100 · Low risk

RPKI ROA coverage

100%

no RPKI invalid prefixes

IRR route objects

100%

no origin mismatches

Hijack signals

0 announced against others' ROAs, 0 own announced by others

Upstreams

diversity 35/100

All announced prefixes have a valid ROA and a matching IRR route object

Based on 9 announced prefixes, updated daily (2026-10-24). How the score works · RPKI explained

Announced Prefixes

(BGP)9

Prefix	RPKI	IRR	Last Seen
194.165.38.0/24	Valid	RIPE	2026-10-25
194.165.56.0/24	Valid	RIPE	2026-10-25
194.165.58.0/24	Valid	RIPE	2026-10-25
2a10:2a80::/48	Valid	RIPE	2026-10-25
2a10:2a80:42::/48	Valid	RIPE	2026-10-25
2a10:2a80:ac::/48	Valid	RIPE	2026-10-25
2a10:2a80:1ab::/48	Valid	RIPE	2026-10-25
2a10:2a80:53a::/48	Valid	RIPE	2026-10-25
2a10:2a80:53b::/48	Valid	RIPE	2026-10-25

Allocated Prefixes

(RIR)5

Prefix	Country	RIR	Status
194.165.35.0/24	🇩🇰 DK	RIPENCC	allocated
194.165.38.0/24	🇩🇰 DK	RIPENCC	allocated
194.165.56.0/24	🇩🇰 DK	RIPENCC	allocated
194.165.58.0/24	🇩🇰 DK	RIPENCC	allocated
2a10:2a80::/29	🇩🇰 DK	RIPENCC	allocated

All 9 announced prefixes of AS207727 →

Upstream Providers(2)

ASN	Name
AS42541	🇩🇰FIBERBY Fiberby ApS
AS205235	🇩🇰LABITAT Labitat

Downstream Customers(1)

ASN	Name
AS208327	🇩🇰TOKE-DK Toke Hoiland-Jorgensen

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS207727 hands its own prefixes to: transit providers, or peers at an exchange.

AS42541FIBERBY ApS7
AS205235LABITAT2

Downstreams (1)

Networks whose own prefixes AS207727 passes on: usually its customers.

AS208327TOKE DK Toke Hoiland Jorgensen1

ASPA

Published2 upstreams, 1 downstream

Authorized Upstream Providers

AS42541 AS205235

Expires 2026-10-27

Listed as Upstream Provider by

1 ASN

View full ASPA details →

Abuse Contact

External Links

RIPE Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
How to run an ASPA checkVerify the upstream providers listed above
IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/207727

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/207727" | jq