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AS31477 DUOCAST-AS Duocast B.V.

DUOCAST-AS Duocast B.V. · registered in the Netherlands

IPv4 addresses30,72036 prefixes · <0.001% of announced IPv4
Rank in Netherlands#76largest network in NL by IPv4 space, of 1,026 · 0.07% of NL
Rank worldwide#4,968of 79,396 networks with IPv4
IPv618 x /32 (1,179,654 x /48)25 prefixes
CountryNetherlands1,098 ASNs registered there
Open AS31477 in ASN lookup Look up an IP in this network (37.9.160.1) All networks in Netherlands

IPv4 prefixes

All 36 prefixes, in address order.

  • 37.9.160.0/21
  • 45.82.188.0/22
  • 82.150.139.0/24
  • 83.137.144.0/23
  • 83.137.146.0/24
  • 83.137.147.0/24
  • 83.137.148.0/22
  • 87.238.168.0/22
  • 87.238.172.0/22
  • 89.188.0.0/20
  • 89.188.16.0/20
  • 89.200.200.0/21
  • 91.196.104.0/22
  • 91.198.178.0/24
  • 91.206.136.0/23
  • 91.209.192.0/24
  • 91.213.95.0/24
  • 91.220.82.0/24
  • 93.184.96.0/20
  • 185.80.245.0/24
  • 185.80.246.0/24
  • 185.134.65.0/24
  • 185.180.96.0/22
  • 193.9.23.0/24
  • 193.138.248.0/23
  • 193.138.250.0/24
  • 193.138.251.0/24
  • 193.164.144.0/24
  • 193.177.163.0/24
  • 193.200.178.0/24
  • 193.202.109.0/24
  • 194.13.8.0/22
  • 194.13.12.0/23
  • 194.13.14.0/24
  • 195.137.165.0/24
  • 195.137.169.0/24

IPv6 prefixes

All 25 prefixes.

  • 2001:678:2b4::/48
  • 2001:678:750::/48
  • 2001:678:d0c::/48
  • 2001:67c:6b8::/48
  • 2a00:70c0::/48
  • 2a01:1b0::/33
  • 2a01:1b0:8000::/34
  • 2a01:1b0:c010::/44
  • 2a01:1b0:c020::/43
  • 2a01:1b0:c040::/42
  • 2a01:1b0:c080::/41
  • 2a01:1b0:c100::/40
  • 2a01:1b0:c200::/39
  • 2a01:1b0:c400::/38
  • 2a01:1b0:c800::/37
  • 2a01:1b0:d000::/36
  • 2a01:1b0:e000::/35
  • 2a01:1b2::/32
  • 2a07:3501:1020::/48
  • 2a07:3505:80::/47
  • 2a07:3505:82::/47
  • 2a07:3505:84::/46
  • 2a07:3505:88::/45
  • 2a0b:6d80::/29
  • 2a0e:7280::/29

Similar-sized networks in Netherlands

ASNNameIPv4 addresses
AS20559#73 FUNDAMENTS-AS Fundaments B.V.33,536
AS42707#74 EQuest-AS e-Quest IT-diensten B.V.31,744
AS57112#75 AS-F2X Fiber Services B.V.31,232
AS213784#77 TNGNET TNGNET B.V.30,208
AS25222#78 AS-ISOL Inmarsat Solutions B.V.26,880
AS35470#79 XL-AS Signet B.V.26,624

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