AS20012 Interworks Networking Services

CHILLER-CITY - Interworks Networking Services · registered in the United States

IPv4 addresses64,51219 prefixes · 0.002% of announced IPv4

Rank in United States#1,348largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#3,524of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS20012 in ASN lookup Look up an IP in this network (168.158.0.1) All networks in United States

IPv4 prefixes

All 19 prefixes, in address order.

168.158.0.0/22
168.158.4.0/23
168.158.6.0/23
168.158.8.0/21
168.158.16.0/20
168.158.32.0/19
168.158.64.0/19
168.158.96.0/20
168.158.112.0/21
168.158.120.0/21
168.158.128.0/18
168.158.192.0/21
168.158.200.0/23
168.158.202.0/23
168.158.204.0/22
168.158.208.0/20
168.158.228.0/22
168.158.232.0/21
168.158.240.0/20

IPv6 prefixes

All 1 prefix.

2605:4b00:100::/48

Similar-sized networks in United States

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AS22828#1347 ASN-FDA - United States Food and Drug Administration64,512

AS32073#1349 MCPS-K12-MD-US - Montgomery County Public Schools64,512

AS19148#1350 LEASEWEB-USA-PHX - Leaseweb USA, Inc.64,256

AS18530#1351 ISOMEDIA-1 - Isomedia, Inc.64,256

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