AS10564 ROCKET SOFTWARE INC

TCSI - ROCKET SOFTWARE INC · registered in the United States

IPv4 addresses7,42412 prefixes · <0.001% of announced IPv4

Rank in United States#3,531largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#11,264of 79,396 networks with IPv4

IPv6256 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS10564 in ASN lookup Look up an IP in this network (137.134.42.1) All networks in United States

IPv4 prefixes

All 12 prefixes, in address order.

137.134.42.0/23
137.134.47.0/24
137.134.100.0/22
137.134.216.0/22
137.134.228.0/22
137.134.240.0/22
137.134.244.0/23
137.134.246.0/23
137.134.249.0/24
137.134.250.0/23
137.134.252.0/23
137.134.254.0/24

IPv6 prefixes

All 1 prefix.

2620:117::/40

Other ASNs named ROCKET SOFTWARE INC

2 other networks use the same organisation name; together with AS10564 they announce 10,240 IPv4 addresses.

ASNNameIPv4 addresses

AS54886ROCKETAS - ROCKET SOFTWARE INC US2,048

AS32180ROCKET-SIRIUS - ROCKET SOFTWARE INC US768

Similar-sized networks in United States

ASNNameIPv4 addresses

AS394384#3528 EDGE-BROADBAND - Edge Broadband7,424

AS40091#3529 WVVANET - WVVA.net Inc.7,424

AS400940#3530 RAILWAY - Railway7,424

AS62597#3532 NSONE - NSONE Inc7,424

AS518#3533 DNIC-AS-00518 - United States Department of Defense (DoD)7,424

AS402279#3534 WAWO-GEOSCRY-08 - Geoscry Network LLC7,424

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