HTTPfy

AS13002 ISIX-AS ISIX Communications LLP

ISIX-AS ISIX Communications LLP · registered in the United Kingdom

IPv4 addresses8,7048 prefixes · <0.001% of announced IPv4
Rank in United Kingdom#321largest network in GB by IPv4 space, of 2,074 · 0.01% of GB
Rank worldwide#9,858of 79,396 networks with IPv4
IPv61 x /32 (65,536 x /48)22 prefixes
CountryUnited Kingdom2,261 ASNs registered there

IPv4 prefixes

All 8 prefixes, in address order.

  • 45.92.131.0/24
  • 194.0.107.0/24
  • 213.159.96.0/20
  • 213.159.112.0/21
  • 213.159.120.0/23
  • 213.159.122.0/24
  • 213.159.123.0/24
  • 213.159.124.0/22

IPv6 prefixes

All 22 prefixes.

  • 2a02:17e8:100::/40
  • 2a02:17e8:200::/39
  • 2a02:17e8:400::/38
  • 2a02:17e8:800::/48
  • 2a02:17e8:801::/48
  • 2a02:17e8:802::/47
  • 2a02:17e8:804::/46
  • 2a02:17e8:808::/45
  • 2a02:17e8:810::/44
  • 2a02:17e8:820::/43
  • 2a02:17e8:840::/42
  • 2a02:17e8:880::/41
  • 2a02:17e8:900::/40
  • 2a02:17e8:a00::/39
  • 2a02:17e8:c00::/40
  • 2a02:17e8:d00::/40
  • 2a02:17e8:e00::/39
  • 2a02:17e8:1000::/36
  • 2a02:17e8:2000::/35
  • 2a02:17e8:4000::/34
  • 2a02:17e8:8000::/33
  • 2a0a:c400:100::/40

Similar-sized networks in United Kingdom

ASNNameIPv4 addresses
AS205975#318 connect-fibre Fibre Assets Ltd8,704
AS8676#319 PRTSYSTEMS PRT Systems Limited8,704
AS12775#320 JPCINET JPC Infonet Ltd8,704
AS42010#322 ITPS I.T. PROFESSIONAL SERVICES LIMITED8,704
AS43519#323 NOMINETANYCAST Nominet UK8,704
AS21369#324 SEMA-UK-AS Atos IT Services UK Ltd8,704

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources