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AS18729
AS18729 Shawmut Design & Construction
SHAWMUT - Shawmut Design & Construction · registered in the United States
IPv4 addresses 512 2 prefixes · <0.001% of announced IPv4
Rank in United States #10,868 largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide #50,116 of 79,396 networks with IPv4
IPv6 none no IPv6 routes announced
IPv4 prefixes
All 2 prefixes, in address order.
50.236.28.0/24 64.214.98.0/24
Similar-sized networks in United States
ASN Name IPv4 addresses
AS18689 #10865 GWYNN-GROUP-INC - Gwynn Group Inc.512
AS18702 #10866 DEGENET-AS - DEGE NETWORK TECHNOLOGIES LLC512
AS18718 #10867 MARVELL - Marvell Semiconductor Inc.512
AS18746 #10869 MIG-BGP - Merchants Insurance Group512
AS18756 #10870 PATEAM - Level 3 Parent, LLC512
AS18763 #10871 PHJW-LLP - Paul, Hastings, Janofsky & Walker LLP512
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