AS3742 Rock Island Communications

ROCKISLAND2 - Rock Island Communications · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#13,683largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#63,019of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS3742 in ASN lookup Look up an IP in this network (23.128.136.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

23.128.136.0/24

Other ASNs named Rock Island Communications

1 other network uses the same organisation name; together with AS3742 they announce 18,688 IPv4 addresses.

ASNNameIPv4 addresses

AS19518ROCKISLAND - Rock Island Communications US18,432

Similar-sized networks in United States

ASNNameIPv4 addresses

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AS3751#13684 PHONAK-LLC - Phonak, LLC256

AS3858#13685 NPPDNET - Nebraska Public Power District256

AS3916#13686 OSIS-PACOM - Joint Intelligence Center Pacific256

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