AS45 Lawrence Livermore National Laboratory

LLL-TIS-AS - Lawrence Livermore National Laboratory · registered in the United States

IPv4 addresses175,10416 prefixes · 0.006% of announced IPv4

Rank in United States#359largest network in US by IPv4 space, of 18,338 · 0.01% of US

Rank worldwide#1,190of 79,396 networks with IPv4

IPv6256 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS45 in ASN lookup Look up an IP in this network (128.15.0.1) All networks in United States

IPv4 prefixes

All 16 prefixes, in address order.

128.15.0.0/16
128.115.0.0/16
134.9.88.0/21
134.9.96.0/19
134.9.128.0/18
134.9.192.0/19
134.9.224.0/20
134.9.240.0/21
134.9.248.0/22
134.9.252.0/23
134.9.254.0/24
192.5.99.0/24
192.12.17.0/24
192.12.133.0/24
192.12.134.0/24
192.188.35.0/24

IPv6 prefixes

All 1 prefix.

2602:80e:d000::/40

Other ASNs named Lawrence Livermore National Laboratory

1 other network uses the same organisation name; together with AS45 they announce 198,656 IPv4 addresses.

ASNNameIPv4 addresses

AS44S1-DOMAIN - Lawrence Livermore National Laboratory US23,552

Similar-sized networks in United States

ASNNameIPv4 addresses

AS11976#356 FIDN - Fidelity Communication International Inc.176,896

AS225#357 VIRGINIA-AS - University of Virginia176,640

AS3593#358 FRONTIER-EPIX - Frontier Communications of America, Inc.175,616

AS6300#360 CCI-TEXAS - Fidium172,800

AS2900#361 WN-AZ-AS - Arizona Tri University Network172,800

AS5065#362 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications172,032

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