AS2640 Ames Laboratory

AMESLAB-AS - Ames Laboratory · registered in the United States

IPv4 addresses65,5361 prefixes · 0.002% of announced IPv4

Rank in United States#1,048largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,963of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS2640 in ASN lookup Look up an IP in this network (147.155.0.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

147.155.0.0/16

IPv6 prefixes

All 1 prefix.

2620:57::/48

Similar-sized networks in United States

ASNNameIPv4 addresses

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AS3681#1049 FIU - Florida International University65,536

AS4597#1050 MILLIPORE - Millipore Corp.65,536

AS5058#1051 NRL-EXP - Navy Network Information Center (NNIC)65,536

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