Internet Route Registry

These entries are queried from radb.net using whois, you can try my project getting these.

:AS2518

route:          27.127.0.0/17
descr:          BIGLOBE CIDR BLOCK 30
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          27.127.0.0/17
descr:          BIGLOBE CIDR BLOCK 30
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          49.129.0.0/16
descr:          BIGLOBE CIDR BLOCK 31
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          49.129.0.0/16
descr:          BIGLOBE CIDR BLOCK 31
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          60.236.0.0/14
descr:          BIGLOBE CIDR BLOCK 18,19
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          60.236.0.0/14
descr:          BIGLOBE CIDR BLOCK 18,19
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          61.193.0.0/17
descr:          BIGLOBE CIDR BLOCK 10
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          61.193.0.0/17
descr:          BIGLOBE CIDR BLOCK 10
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          61.203.0.0/17
descr:          BIGLOBE CIDR BLOCK 9
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          61.203.0.0/17
descr:          BIGLOBE CIDR BLOCK 9
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          110.233.0.0/16
descr:          BIGLOBE CIDR BLOCK 28
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          110.233.0.0/16
descr:          BIGLOBE CIDR BLOCK 28
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          111.168.0.0/15
descr:          BIGLOBE CIDR BLOCK 29
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          111.168.0.0/15
descr:          BIGLOBE CIDR BLOCK 29
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          118.108.0.0/14
descr:          BIGLOBE CIDR BLOCK 24
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          118.108.0.0/14
descr:          BIGLOBE CIDR BLOCK 24
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          119.238.0.0/15
descr:          BIGLOBE CIDR BLOCK 25
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          119.238.0.0/15
descr:          BIGLOBE CIDR BLOCK 25
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          119.240.0.0/14
descr:          BIGLOBE CIDR BLOCK 26
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          119.240.0.0/14
descr:          BIGLOBE CIDR BLOCK 26
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          119.244.0.0/16
descr:          BIGLOBE CIDR BLOCK 27
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          119.244.0.0/16
descr:          BIGLOBE CIDR BLOCK 27
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          122.130.0.0/15
descr:          BIGLOBE CIDR BLOCK 22
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          122.130.0.0/15
descr:          BIGLOBE CIDR BLOCK 22
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          122.132.0.0/14
descr:          BIGLOBE CIDR BLOCK 23
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          122.132.0.0/14
descr:          BIGLOBE CIDR BLOCK 23
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          125.192.0.0/13
descr:          BIGLOBE CIDR BLOCK 20,21
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          125.192.0.0/13
descr:          BIGLOBE CIDR BLOCK 20,21
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          133.200.0.0/14
descr:          BIGLOBE NET 2
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240404
source:         JPIRR
rpki-ov-state:  valid

route:          133.200.0.0/14
descr:          BIGLOBE NET 2
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240404
source:         RADB
last-modified:  2024-04-04T01:32:20Z
rpki-ov-state:  valid

route:          133.204.0.0/16
descr:          BIGLOBE NET 3
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240404
source:         JPIRR
rpki-ov-state:  valid

route:          133.204.0.0/16
descr:          BIGLOBE NET 3
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240404
source:         RADB
last-modified:  2024-04-04T01:32:20Z
rpki-ov-state:  valid

route:          133.205.0.0/16
descr:          BIGLOBE NET 1
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          133.205.0.0/16
descr:          BIGLOBE NET 1
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          133.206.0.0/15
descr:          BIGLOBE NET 4
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240404
source:         RADB
last-modified:  2024-04-04T01:32:20Z
rpki-ov-state:  valid

route:          133.206.0.0/15
descr:          BIGLOBE NET 4
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240404
source:         JPIRR
rpki-ov-state:  valid

route:          133.208.0.0/15
descr:          BIGLOBE NET 5
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240404
source:         JPIRR
rpki-ov-state:  valid

route:          133.208.0.0/15
descr:          BIGLOBE NET 5
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240404
source:         RADB
last-modified:  2024-04-04T01:32:20Z
rpki-ov-state:  valid

route:          202.225.0.0/16
descr:          BIGLOBE CIDR BLOCK 1
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          202.225.0.0/16
descr:          BIGLOBE CIDR BLOCK 1
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          202.247.0.0/17
descr:          BIGLOBE CIDR BLOCK 2
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          202.247.0.0/17
descr:          BIGLOBE CIDR BLOCK 2
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          203.136.0.0/16
descr:          BIGLOBE CIDR BLOCK 3,4
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          203.136.0.0/16
descr:          BIGLOBE CIDR BLOCK 3,4
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          210.147.0.0/16
descr:          BIGLOBE CIDR BLOCK 5
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          210.147.0.0/16
descr:          BIGLOBE CIDR BLOCK 5
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          210.151.128.0/17
descr:          BIGLOBE CIDR BLOCK 6
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          210.151.128.0/17
descr:          BIGLOBE CIDR BLOCK 6
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          211.13.0.0/17
descr:          BIGLOBE CIDR BLOCK 7
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          211.13.0.0/17
descr:          BIGLOBE CIDR BLOCK 7
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          211.135.128.0/17
descr:          BIGLOBE CIDR BLOCK 8
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          211.135.128.0/17
descr:          BIGLOBE CIDR BLOCK 8
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          218.42.0.0/17
descr:          BIGLOBE CIDR BLOCK 11
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          218.42.0.0/17
descr:          BIGLOBE CIDR BLOCK 11
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          218.227.0.0/16
descr:          BIGLOBE CIDR BLOCK 12
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          218.227.0.0/16
descr:          BIGLOBE CIDR BLOCK 12
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          219.107.0.0/16
descr:          BIGLOBE CIDR BLOCK 13
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          219.107.0.0/16
descr:          BIGLOBE CIDR BLOCK 13
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          220.102.0.0/16
descr:          BIGLOBE CIDR BLOCK 17
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          220.102.0.0/16
descr:          BIGLOBE CIDR BLOCK 17
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          220.144.0.0/16
descr:          BIGLOBE CIDR BLOCK 14
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          220.144.0.0/16
descr:          BIGLOBE CIDR BLOCK 14
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route:          221.170.0.0/15
descr:          BIGLOBE CIDR BLOCK 15,16
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route:          221.170.0.0/15
descr:          BIGLOBE CIDR BLOCK 15,16
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route6:         2001:260::/32
descr:          BIGLOBE IPv6 BLOCK 1
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         JPIRR
rpki-ov-state:  valid

route6:         2001:260::/32
descr:          Proxy RO for BIGLOBE
origin:         AS2518
remarks:        contacts per RFC2142:
remarks:        Abuse / UCE reports abuse [at] ntt.net
remarks:        Security issues security [at] ntt.net
mnt-by:         MAINT-NTTCOM-RA
changed:        chowser [at] us.ntt.net 20180823
source:         NTTCOM
rpki-ov-state:  valid

route6:         2001:260::/32
descr:          BIGLOBE IPv6 BLOCK 1
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20240104
source:         RADB
last-modified:  2024-01-04T04:56:31Z
rpki-ov-state:  valid

route6:         2404:7a80::/29
descr:          BIGLOBE IPv6 BLOCK 2
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MESH
changed:        n-horiuchi [at] za.biglobe.co.jp 20231002
source:         RADB
last-modified:  2023-11-13T16:18:46Z
rpki-ov-state:  valid

route6:         2404:7a80::/29
descr:          BIGLOBE IPv6 BLOCK 2
origin:         AS2518
notify:         noc [at] mesh.ad.jp
mnt-by:         MAINT-AS2518
changed:        n-horiuchi [at] za.biglobe.co.jp 20231002
source:         JPIRR
rpki-ov-state:  valid

AS-GOOGLE [IP]

AS-TWITTER [IP]

AS-FACEBOOK [IP]

AS-AMAZON [IP]

AS-YAHOO [IP]

AS-CLOUDFLARE [IP]

AS-WIKIMEDIA [IP]

AS-HURRICANE [IP]

AS-MICROSOFT [IP]

AS-APPLE [IP]

AS-LINODE [IP]

AS-DIGITALOCEAN [IP]

AS-AOL [IP]

AS-CN [IP]

AS-CNC [IP]

AS-EBAY [IP]

AS-CISCO [IP]

AS-BBC [IP]

AS-ROOT [IP]

AS-ICI [IP]

AS-YANDEX [IP]

AS-RUSSIA [IP]

AS-KDD [IP]

AS-CMNET [IP]

AS-AKAMAI [IP]

AS-SINGTEL [IP]

AS-TW [IP]

AS-CUSTOMERS [IP]

AS-VODAFONE [IP]

AS-DROPBOX [IP]

AS-LINKEDIN [IP]

AS-DAILYMOTION [IP]

AS-BLIX [IP]

AS-INCAPSULA [IP]

AS-TUMBLR [IP]

AS-TELEGRAM [IP]

AS2518

AS59793

AS265062

AS199275

AS-COMTELTV

AS267287

AS61399

AS398923

AS52996

AS264492

AS24128

AS-LOWHOSTING

AS266164

AS36479

AS208041

AS141178

AS61396

AS48774

AS268808

AS270385

AS51404