AS11678 U.S. Department of Energy

DOE-NTS-AS - U.S. Department of Energy · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#12,744largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#59,108of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryUnited States18,679 ASNs registered there

Open AS11678 in ASN lookup Look up an IP in this network (192.100.51.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

192.100.51.0/24

IPv6 prefixes

All 1 prefix.

2607:2080::/32

Other ASNs named U.S. Department of Energy

2 other networks use the same organisation name; together with AS11678 they announce 234,496 IPv4 addresses.

ASNNameIPv4 addresses

AS32982DOE-HQ - U.S. Department of Energy US230,912

AS46846DOE-HQ-COOP - U.S. Department of Energy US3,328

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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