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AS15412

AS15412 is FLAG TELECOM UK LIMITED.

Last updated 3 Nov 2026 from DB-IP ASN Lite (2026-11-01) and RIR statistics (4 Nov 2026)

Short answer

AS15412 belongs to FLAG TELECOM UK LIMITED. DB-IP Lite attributes 33,280 IPv4 addresses in 16 ranges and 1 IPv6 ranges to it, 31% of the IPv4 space in United Kingdom. The number is registered with RIPE NCC in United Kingdom on 22 Jun 2000.

Facts for AS15412
Operator (DB-IP)FLAG TELECOM UK LIMITED
IPv4 addresses33,280
IPv4 ranges16
IPv6 ranges1
RegistryRIPE NCC
Registered22 Jun 2000
Registry countryUnited Kingdom (GB)

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)

FLAG TELECOM UK LIMITED 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 1 IPv6 ranges for AS15412, so customers can get IPv6 addresses, which databases place separately from IPv4.

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

GB31%
HK15%
US11%
PH9%
EG8%
JP6%
SG5%
PK3%

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

IP ranges

RangeAs CIDRAddresses
43.248.216.0 – 43.248.219.25543.248.216.0/221,024
45.125.188.0 – 45.125.191.25545.125.188.0/221,024
62.216.128.0 – 62.216.159.25562.216.128.0/198,192
80.77.0.0 – 80.77.15.25580.77.0.0/204,096
80.81.64.0 – 80.81.75.25580.81.64.0/21, 80.81.72.0/223,072
80.81.78.0 – 80.81.95.25580.81.78.0/23, 80.81.80.0/204,608
85.95.24.0 – 85.95.27.25585.95.24.0/221,024
103.5.160.0 – 103.5.163.255103.5.160.0/221,024
103.8.84.0 – 103.8.87.255103.8.84.0/221,024
103.11.237.0 – 103.11.237.255103.11.237.0/24256
103.15.116.0 – 103.15.119.255103.15.116.0/221,024
103.103.152.0 – 103.103.155.255103.103.152.0/221,024
103.144.202.0 – 103.144.203.255103.144.202.0/23512
103.154.20.0 – 103.154.21.255103.154.20.0/23512
103.225.192.0 – 103.225.195.255103.225.192.0/221,024
203.79.33.0 – 203.79.47.255203.79.33.0/24, 203.79.34.0/23 …3,840
2001:1a00:: – 2001:1a00:ffff:ffff:ffff:ffff:ffff:ffff2001:1a00::/32IPv6
Showing 16 of 16 IPv4 and 1 of 1 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 3 Nov 2026
  2. NRO RIR delegated-extended statistics · checked 5 Nov 2026