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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
34,304
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
103.225.192.0/22 Dream Information Laboratory 1,024
203.79.32.0/20 Flag Telecom Ireland Network Ltd 4,096
203.79.35.0/24 ASSIGNED-TO-FLAG-IPT-CUSTOMERS 25102017 256
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

214 peers
AS42 AS714 AS786 AS1103 AS1257 AS1273 AS1828 AS2119 AS2497 AS2518 AS2603 AS2635 AS2647 AS2687 AS2906 AS2907 AS3216 AS3223 AS3292 AS3303 AS3320 AS3462 AS3491 AS3741 AS3786 AS3920 AS4181 AS4229 AS4455 AS4657 AS4766 AS4837 AS5390 AS5405 AS5413 AS5583 AS6079 AS6453 AS6667 AS6774 AS6805 AS6830 AS6894 AS6910 AS7029 AS7342 AS7713 AS8075 AS8220 AS8308 AS8529 AS8551 AS8657 AS9009 AS9593 AS9605 AS9615 AS9957 AS10133 AS10310 AS11164 AS12200 AS12389 AS12390 AS12496 AS12552 AS12735 AS12902 AS13009 AS13030 AS13037 AS13208 AS13237 AS13285 AS13335 AS14361 AS15169 AS702 AS2516 AS4004 AS4637 AS4826 AS4862 AS6461 AS7195 AS8218 AS8282 AS8319 AS8359 AS8426 AS8966 AS9044 AS15557 AS15598 AS15600 AS19229 AS20485 AS20940 AS21472 AS30058 AS32934 AS36994 AS37468 AS39572 AS40934 AS43380 AS53766 AS55256 AS58511 AS60051 AS196881 AS202020 AS212483 AS215638 AS15830 AS16247 AS16265 AS16276 AS16509 AS16637 AS17511 AS17676 AS18041 AS18106 AS19151 AS20562 AS20847 AS20932 AS21267 AS21385 AS21859 AS22356 AS22697 AS24482 AS24875 AS24940 AS25180 AS25560 AS29446 AS29527 AS29748 AS29838 AS31742 AS31898 AS33891 AS34170 AS34245 AS34772 AS35228 AS35266 AS36692 AS36874 AS37721 AS38855 AS39120 AS39175 AS39386 AS39875 AS40065 AS40401 AS40676 AS41095 AS41327 AS42473 AS42611 AS42689 AS42831 AS43519 AS44123 AS45014 AS48070 AS48185 AS48237 AS49544 AS49685 AS49981 AS51375 AS52025 AS52041 AS52075 AS54113 AS54994 AS57976 AS58453 AS60068 AS60670 AS60981 AS61049 AS61231 AS62167 AS132337 AS137409 AS139057 AS139341 AS196925 AS198895 AS199524 AS199775 AS203372 AS204264 AS204598 AS206347 AS206735 AS206999 AS207044 AS208389 AS208802 AS210062 AS211389 AS212396 AS212683 AS215000 AS264409 AS396986

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

36 downstreams

AS15412 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.

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