AS11509 Tierzero

TIERZERO-AS11509 - Tierzero · registered in the United States

IPv4 addresses118,52814 prefixes · 0.004% of announced IPv4

Rank in United States#582largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#1,724of 79,396 networks with IPv4

IPv64,096 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS11509 in ASN lookup Look up an IP in this network (64.239.128.1) All networks in United States

IPv4 prefixes

All 14 prefixes, in address order.

64.239.128.0/18
66.6.208.0/20
72.18.0.0/19
162.142.73.0/24
208.179.0.0/16
216.31.128.0/18
216.116.96.0/23
216.116.99.0/24
216.116.100.0/22
216.116.104.0/21
216.116.112.0/21
216.116.120.0/22
216.116.124.0/23
216.116.126.0/24

IPv6 prefixes

All 1 prefix.

2604:4bc0::/36

Similar-sized networks in United States

ASNNameIPv4 addresses

AS13415#579 FIRSTDIGITAL - FirstDigital Communications, LLC119,552

AS12041#580 AS-AFILIAS1 - Afilias, Inc.119,296

AS11696#581 NBS11696 - Fusion, LLC118,784

AS8015#583 US-SIGNAL-MN01 - US Signal Company, L.L.C.118,272

AS16524#584 METTEL - MetTel117,760

AS401152#585 ADCIL-ASN-01 - Ace Data Centers II, L.L.C.117,760

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