AS18670 Arrowstreet Capital, L.P.

ARROWSTREET - Arrowstreet Capital, L.P. · registered in the United States

IPv4 addresses7682 prefixes · <0.001% of announced IPv4

Rank in United States#9,424largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#43,905of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS18670 in ASN lookup Look up an IP in this network (38.127.203.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

38.127.203.0/24
199.85.22.0/23

Similar-sized networks in United States

ASNNameIPv4 addresses

AS18550#9421 FARCAP-AS - Farallon Capital Management LLC768

AS18600#9422 WPIA-NET - R. Fritz Enterprises Inc.768

AS18628#9423 NYMEX - NEW YORK MERCANTILE EXCHANGE768

AS18673#9425 CFP-ASN - Casey Family Programs768

AS18707#9426 INTELEMEDIA - Intelemedia Communications, Inc768

AS18864#9427 FIRST-UNITED-BANK - First United Bank and Trust Company768

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