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AS56665

AS56665 is Proximus Luxembourg S.A..

Last updated 5 Oct 2026 from DB-IP ASN Lite (2026-10-01) and RIR statistics (26 Oct 2026)

Short answer

AS56665 belongs to Proximus Luxembourg S.A.. DB-IP Lite attributes 45,056 IPv4 addresses in 7 ranges and 3 IPv6 ranges to it, all or nearly all of the IPv4 space in Luxembourg. The number is registered with RIPE NCC in Luxembourg on 21 Apr 2011.

Facts for AS56665
Operator (DB-IP)Proximus Luxembourg S.A.
IPv4 addresses45,056
IPv4 ranges7
IPv6 ranges3
RegistryRIPE NCC
Registered21 Apr 2011
Registry countryLuxembourg (LU)

Does it publish a geofeed?

We haven’t checked this network’s registry records for a geofeed yet. The Truth Check looks for one live for any address you test.

Shared addresses (CGNAT)

Proximus Luxembourg S.A. hasn’t been documented as using carrier-grade NAT in a source we could check. To see whether your own connection is behind it, compare your router’s address on the CGNAT check.

IPv6

DB-IP lists 3 IPv6 ranges for AS56665, so customers can get IPv6 addresses, which databases place separately from IPv4.

Where its IPv4 space is used, according to DB-IP

LU100%

Share of the network’s IPv4 addresses by DB-IP Country Lite. IP Geolocation by DB-IP.

IP ranges

RangeAs CIDRAddresses
31.204.88.0 – 31.204.88.25531.204.88.0/24256
31.204.90.0 – 31.204.95.25531.204.90.0/23, 31.204.92.0/221,536
78.111.137.0 – 78.111.137.25578.111.137.0/24256
94.252.0.0 – 94.252.127.25594.252.0.0/1732,768
185.3.44.0 – 185.3.47.255185.3.44.0/221,024
185.40.60.0 – 185.40.63.255185.40.60.0/221,024
212.66.64.0 – 212.66.95.255212.66.64.0/198,192
2a00:4180:1:: – 2a00:4180:3:ffff:ffff:ffff:ffff:ffff2a00:4180:1::/48IPv6
2a00:4180:1000:: – 2a00:4180:1fff:ffff:ffff:ffff:ffff:ffff2a00:4180:1000::/36IPv6
2a04:81c0:: – 2a04:81c7:ffff:ffff:ffff:ffff:ffff:ffff2a04:81c0::/29IPv6
Showing 7 of 7 IPv4 and 3 of 3 IPv6 ranges All ranges (CSV)

IP Geolocation by DB-IP, ASN Lite, CC BY 4.0.

Using an address from this network? See which sources agree on where it is.

Sources

  1. DB-IP IP to ASN Lite (CC BY 4.0) · checked 5 Oct 2026
  2. NRO RIR delegated-extended statistics · checked 27 Oct 2026