Autonomous system detail

AS692

Announced

Operated by DK-CUROTEC CuroTec ApS.

Summary

// analyst note
Small, single-homed Danish hosting/consulting ASN registered 2021-05-19 under RIPE. Fully RPKI-valid, no observed abuse signal, no public peering policy or PeeringDB listing. CAIDA ASRank confirms a minimal but measured footprint: rank 27,942, singleton customer cone (1 ASN, 2 prefixes, 2,048 addresses), one provider relationship, zero customers/peers. A second ASN, AS207603, belongs to the same operator: RIPE RDAP returns it as 'curotec' with a CuroTec NOC contact at the same Aalborg address, and it shares AS692's abuse contact noc@curotec.dk.
// security note
Not listed in Spamhaus ASN-DROP or in Spamhaus DROP/EDROP for its announced prefixes, checked 2026-07-18; no NANOG or general-web abuse reports found.
IPv4 prefixes
3
~3.1K addresses
IPv6 prefixes
1
announced
Peer networks
1
1 up · 0 down
IANA block
1-1876
Assigned by ARIN
[ 01 ] — Context

About this ASN.

Updated  ·  Confidence: Medium

AS692 is an active, currently-routed autonomous system registered to CuroTec ApS, a small Danish private-cloud-hosting and IT-consulting company based in Aalborg, that originates a handful of small prefixes for its own customer-facing infrastructure.

RIPE NCC's RDAP record shows AS692 (RIPE handle DK-CUROTEC) registered on 2021-05-19 and last changed 2023-01-11, with RDAP status "active." bgp.he.net separately tags the underlying resource as "LEGACY" — RIPE's pre-RIR-era resource classification tag, not a contradiction of the RDAP registration event.

CuroTec ApS operates as a Private Cloud Hosting and Network-as-a-Service (NaaS) provider serving Danish enterprise IT clients, with offices in Aalborg, Middelfart, and Copenhagen/Søborg. Third-party BGP collectors classify AS692 as a small single-homed "stub AS" rather than a transit network.

CAIDA's ASRank places it 27,942nd globally — visible and clique-member-eligible in CAIDA's measurement graph, but with a minimal customer cone of 1 ASN (itself), 2 prefixes, and 2,048 addresses, and an AS-degree profile of one provider relationship with zero customers and zero peers — consistent with the single-homed-stub picture from live routing data.

Live routing data (bgp.he.net, bgp.tools) shows AS692 announcing 3 IPv4 prefixes (roughly 3,072 addresses) and 1 IPv6 prefix, all originated with valid RPKI ROAs. Its sole observed upstream is AS3292 (TDC Holding A/S / TDC NET); no downstream customer cone or public peering was found, and no PeeringDB listing exists for the ASN.

IPinfo also lists a second ASN, AS207603, under the same "CuroTec ApS" name, and the RIPE registry bears that out: RDAP returns AS207603 as "curotec", status active, with a CuroTec NOC contact at the same Aalborg address as AS692, and RIPEstat returns the same abuse contact, noc@curotec.dk. It announces one IPv4 prefix, 185.101.140.0/22. CuroTec ApS therefore holds two ASNs.

Operator
CuroTec ApS (Danish private-cloud-hosting / IT-consulting company; RIPE handle DK-CUROTEC), Alfred Nobels Vej 25, 9220 Aalborg Øst, Denmark [Confirmed] — https://rdap.db.ripe.net/autnum/692, https://www.curotec.dk/
Country / RIR
Denmark, RIPE NCC [Confirmed] — https://rdap.db.ripe.net/autnum/692
Allocated
2021-05-19 (RIPE RDAP autnum top-level registration event); last changed 2023-01-11 [Confirmed] — https://rdap.db.ripe.net/autnum/692 (corroborated by https://bgp.he.net/AS692 and https://bgp.tools/as/692)
RIR status
RDAP status "active"; bgp.he.net separately tags the resource "LEGACY" (RIPE's pre-RIR allocation-era tag, not a status conflict) [Confirmed] — https://rdap.db.ripe.net/autnum/692, https://bgp.he.net/AS692

Abuse contact

noc@curotec.dk (Abuse-C role, AR57254-RIPE)

[Confirmed] — https://rdap.db.ripe.net/autnum/692, https://stat.ripe.net/data/abuse-contact-finder/data.json?resource=AS692

Abuse/security context

not listed in Spamhaus ASN-DROP or in Spamhaus DROP/EDROP for its announced prefixes as of 2026-07-18; no NANOG or general-web abuse reports found (negative result, not an exhaustive clean bill of health) [Confirmed for the feed checks performed] — https://www.spamhaus.org/drop/asndrop.json, https://www.spamhaus.org/drop/drop.txt, https://www.spamhaus.org/drop/edrop.txt

Network & routing

Network type
regional Danish private-cloud-hosting / NaaS / IT-consulting provider; third-party classifiers label it a small stub AS, not a transit network [Likely] — https://www.curotec.dk/, https://ipinfo.io/AS692
Routing
3 IPv4 prefixes (~3,072 addresses) and 1 IPv6 prefix announced; sole upstream AS3292 (TDC Holding A/S); no downstream customer cone observed in live routing data [Confirmed] — https://bgp.he.net/AS692, https://bgp.tools/as/692
CAIDA AS rank / customer cone
rank 27,942 (seen=true, cliqueMember=true); customer cone = 1 ASN, 2 prefixes, 2,048 addresses; AS-degree = 1 total / 0 customer / 0 peer / 1 provider [Confirmed] — https://asrank.caida.org/asns/692
Peering policy
Unknown / not publicly documented; no PeeringDB listing exists for AS692 [Likely] — https://ipinfo.io/AS692, https://www.curotec.dk/
RPKI
all 4 announced prefixes carry valid RPKI ROAs; no RPKI-invalid origins [Confirmed] — https://bgp.he.net/AS692
Related ASN
AS207603 (RIPE handle "curotec", RDAP status "active") is a second ASN held by the same operator — RIPE RDAP lists the CuroTec NOC role contact at Alfred Nobels Vej 25, Aalborg Øst, matching AS692's registrant address, and RIPEstat returns the same abuse contact, noc@curotec.dk; AS207603 announces one IPv4 prefix, 185.101.140.0/22 (~1,024 addresses), first seen 2020-08-01, and carries CAIDA rank 79,006 [Confirmed] — https://rdap.db.ripe.net/autnum/207603, https://stat.ripe.net/data/abuse-contact-finder/data.json?resource=AS207603, https://ipinfo.io/AS207603 (queried 2026-07-28)
CVR business registration
38418939 (Danish CVR number) [Likely] — https://opencorporates.com/companies/dk/38418939
[ 02 ] — Announced prefixes

What this network routes.

4 prefixes total · RIPEstat data · cached, not real-time
// IPv4 prefixes3
  1. 185.178.20.0/22/22
  2. 185.101.140.0/22/22
  3. 64.224.12.0/22/22
// IPv6 prefixes1
  1. 2a10:5940::/29/29
[ 03 ] — Notable peers & upstreams

Who it talks to.

1 observed neighbour
// Notable connectionsTop 1 of 1
ASNOperatorRole
AS3292 upstream
Neighbours observed via public BGP collectors; not a complete peering list.