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AS34010 YAHOO-IRD Yahoo-UK Limited

YAHOO-IRD Yahoo-UK Limited · registered in the United Kingdom

IPv4 addresses30,72034 prefixes · <0.001% of announced IPv4
Rank in United Kingdom#140largest network in GB by IPv4 space, of 2,074 · 0.05% of GB
Rank worldwide#4,986of 79,396 networks with IPv4
IPv610 x /485 prefixes
CountryUnited Kingdom2,261 ASNs registered there

IPv4 prefixes

All 34 prefixes, in address order.

  • 46.228.32.0/20
  • 77.238.160.0/23
  • 77.238.162.0/23
  • 77.238.176.0/22
  • 77.238.184.0/23
  • 77.238.186.0/23
  • 77.238.188.0/24
  • 77.238.190.0/23
  • 87.248.96.0/23
  • 87.248.98.0/24
  • 87.248.99.0/24
  • 87.248.100.0/22
  • 87.248.108.0/23
  • 87.248.110.0/24
  • 87.248.120.0/21
  • 188.125.64.0/20
  • 188.125.80.0/24
  • 188.125.81.0/24
  • 188.125.82.0/24
  • 188.125.83.0/24
  • 188.125.84.0/22
  • 212.82.96.0/21
  • 212.82.104.0/23
  • 212.82.106.0/24
  • 212.82.107.0/24
  • 212.82.108.0/22
  • 217.12.2.0/23
  • 217.12.4.0/22
  • 217.12.8.0/21
  • 217.146.176.0/21
  • 217.146.184.0/22
  • 217.146.188.0/23
  • 217.146.190.0/24
  • 217.146.191.0/24

IPv6 prefixes

All 5 prefixes.

  • 2a00:1288:110::/47
  • 2a00:1288:112::/47
  • 2a00:1288:1a8::/46
  • 2a00:1288:ef6a::/48
  • 2a00:1288:ef98::/48

Similar-sized networks in United Kingdom

ASNNameIPv4 addresses
AS57099#137 QUICKLINE Quickline Communications Limited31,232
AS51809#138 BRSK BRSK Limited30,976
AS215590#139 XORA-AS DpkgSoft International Limited30,720
AS199335#141 TALKSTRAIGHT Talk Straight Ltd.30,464
AS213607#142 WORLD-FIRST-COMMUNICATION-LTD WORLD FIRST COMMUNICATION LTD28,928
AS12519#143 FASTNETUK FastNet International Ltd28,672

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