AS36019 4 SIWI, LLC

4SIWI-NET - 4 SIWI, LLC · registered in the United States

IPv4 addresses1,0241 prefixes · <0.001% of announced IPv4

Rank in United States#8,540largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#37,201of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS36019 in ASN lookup Look up an IP in this network (104.37.68.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

104.37.68.0/22

Similar-sized networks in United States

ASNNameIPv4 addresses

AS35984#8537 GDS-AS-01 - Group Dekko Services, LLC1,024

AS35996#8538 SV1-ENT-DC-VA1 - CentralColo, LLC1,024

AS36015#8539 MRHS - Maury Regional Hospital1,024

AS36022#8541 CHK-OKC - Expand Operating LLC1,024

AS36056#8542 ALASK-15 - Alaska Native Medical Center1,024

AS36073#8543 COMPORTSECURE-01 - ComportSecure LLC1,024

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