All ASNs

Autonomous System details for AS15412

AS15412
Flag Telecom UK Limited • globalcloudxchange.com

AS15412 — Flag Telecom UK Limited

AS Name
FLAG-AS
Country
United Kingdom (GB)
Website
Number of IPv4
34,560
Number of IPv6
7.92 × 1028
ASN type
ISP
Status
Allocated
Registry
RIPE
Allocated
September 18, 2002
Last updated
December 17, 2025

IP Ranges

20 IPv4 prefixes, 1 IPv6 prefixes
Prefix Company Number of IPs
43.248.216.0/22 AMDIA Inc. 1,024
45.125.188.0/22 FE Partners Inc. 1,024
62.216.128.0/19 Flag Telecom UK Limited 8,192
80.77.0.0/20 FLAG Telecom Ltd 4,096
80.81.64.0/19 Flag Telecom UK Limited 8,192
85.95.24.0/22 Flag Telecom UK Limited 1,024
103.5.160.0/22 M&I Consulting, Inc. 1,024
103.8.84.0/24 Dream Information Laboratory 256
103.8.85.0/24 Netscil 256
103.8.86.0/24 Yoamenel 256
103.8.87.0/24 Ronesel 256
103.11.237.0/24 APNSYS 256
103.15.116.0/22 AMDIA Inc. 1,024
103.103.152.0/22 Flag Telecom Ireland Network Ltd 1,024
103.144.202.0/23 AMDIA Inc. 512
103.154.20.0/23 Earthstar Solution Co., Ltd. 512
103.225.192.0/22 Dream Information Laboratory 1,024
203.79.32.0/20 ASSIGNED-TO-YIPES-25102017 4,096
203.79.37.0/24 ASSIGNED-TO-FLAG-CHINA-HK-CUSTOMERS 25102017 256
203.79.39.0/24 For Customer PLDT RGDIPSC269 at 05072018 256
2001:1a00::/32 Flag Telecom UK Limited 7.92 × 1028

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS15412

336 peers
AS1273 AS2818 AS2906 AS2907 AS3223 AS3292 AS3320 AS4181 AS4455 AS5390 AS5466 AS6805 AS7195 AS8319 AS8426 AS8551 AS8657 AS8683 AS8801 AS9044 AS9153 AS9541 AS9957 AS10133 AS12496 AS12902 AS13101 AS14361 AS15169 AS42 AS702 AS703 AS714 AS786 AS835 AS1103 AS1257 AS1820 AS1828 AS2119 AS2497 AS2516 AS2518 AS2519 AS2603 AS2635 AS2647 AS2686 AS2687 AS3213 AS3216 AS3303 AS3327 AS3462 AS3491 AS3741 AS3786 AS4004 AS4229 AS4637 AS4657 AS4766 AS4788 AS4837 AS4862 AS5378 AS5400 AS5405 AS5413 AS5459 AS5503 AS5583 AS6079 AS6453 AS6461 AS6667 AS6717 AS6774 AS6830 AS6894 AS6908 AS7029 AS7342 AS7575 AS7713 AS8075 AS8218 AS8220 AS8282 AS8308 AS8359 AS8365 AS8468 AS8529 AS8560 AS8648 AS8674 AS8708 AS8966 AS9009 AS9140 AS9293 AS9498 AS9505 AS9593 AS9605 AS10099 AS10310 AS11019 AS11164 AS12200 AS12389 AS12390 AS12414 AS12552 AS12735 AS12876 AS13009 AS13030 AS13037 AS13122 AS13213 AS13237 AS13285 AS13335 AS15557 AS15598 AS15766 AS15830 AS16082 AS16247 AS16265 AS16353 AS16509 AS16637 AS17088 AS17676 AS19151 AS20485 AS20596 AS20799 AS20932 AS21267 AS21385 AS21859 AS22356 AS22697 AS23344 AS24594 AS24875 AS24916 AS24961 AS25180 AS25376 AS29446 AS29452 AS29527 AS29611 AS30058 AS31742 AS31898 AS32934 AS33891 AS34170 AS34245 AS35228 AS35266 AS35551 AS35826 AS35834 AS36874 AS36994 AS37468 AS37721 AS38631 AS39175 AS39202 AS39356 AS39498 AS39572 AS39602 AS39875 AS40065 AS40676 AS41000 AS41095 AS41327 AS41913 AS42004 AS42010 AS42228 AS42473 AS42611 AS42689 AS42831 AS43545 AS44123 AS44332 AS44444 AS44684 AS44965 AS47480 AS47638 AS47998 AS48070 AS48237 AS48728 AS48945 AS49415 AS49544 AS49685 AS49981 AS51043 AS51263 AS51375 AS51409 AS51561 AS51945 AS52075 AS53766 AS54113 AS55256 AS56718 AS57099 AS57653 AS57976 AS59105 AS59395 AS59659 AS60051 AS60670 AS60793 AS60800 AS60868 AS60981 AS61049 AS61337 AS61373 AS62044 AS62163 AS62167 AS62227 AS132337 AS137409 AS139057 AS139341 AS152144 AS196881 AS196925 AS198736 AS198895 AS199524 AS199775 AS200781 AS201126 AS201277 AS202596 AS203421 AS203582 AS203724 AS204558 AS204598 AS206245 AS206347 AS206530 AS206626 AS206735 AS206999 AS207044 AS208389 AS208636 AS208802 AS209326 AS210627 AS210893 AS211389 AS212175 AS212396 AS212483 AS212683 AS215981 AS262355 AS263444 AS327814 AS396986 AS15600 AS18041 AS20562 AS20712 AS20773 AS20940 AS21472 AS24482 AS24940 AS25460 AS25560 AS25577 AS29006 AS29606 AS34066 AS34746 AS35071 AS35575 AS36692 AS38855 AS39120 AS39208 AS39386 AS40934 AS43350 AS43519 AS47631 AS49453 AS49823 AS51553 AS52025 AS54994 AS55720 AS57793 AS58453 AS58511 AS60068 AS61124 AS61231 AS200052 AS201838 AS202020 AS203372 AS204264 AS205272 AS208621 AS209505 AS210062 AS210258 AS212109 AS395505

AS15412 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS15412

5 upstreams

AS15412 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS15412 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS15412

39 downstreams

Our IP address tools

Explore all tools

What is my IP?

Discover your public IP address and detailed information about your connection.

CIDR to IP Range Converter (IPv4 and IPv6)

Convert CIDR notation to IP address ranges and vice versa. Useful for network configuration and security.

IP to Hostname/rDNS Lookup

Perform a reverse DNS (rDNS) lookup to get the hostname for an IP address.

IPv6 Expander/Collapser

Expand or collapse IPv6 addresses to their full or shortened forms for better readability and usage.