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AS7377

AS7377 is University of California, San Diego.

Last updated 3 Nov 2026 from DB-IP ASN Lite (2026-11-01) and RIR statistics (3 Nov 2026)

Short answer

AS7377 belongs to University of California, San Diego. DB-IP Lite attributes 12,059,136 IPv4 addresses in 247 ranges and 2 IPv6 ranges to it, 80% of the IPv4 space in United States. The number is registered with ARIN in United States on 25 Nov 1996.

Facts for AS7377
Operator (DB-IP)University of California, San Diego
IPv4 addresses12,059,136
IPv4 ranges247
IPv6 ranges2
RegistryARIN
Registered25 Nov 1996
Registry countryUnited States (US)

Does it publish a geofeed?

We haven’t checked this network’s registry records for a geofeed yet. The Truth Check looks for one live for any address you test.

Shared addresses (CGNAT)

University of California, San Diego hasn’t been documented as using carrier-grade NAT in a source we could check. To see whether your own connection is behind it, compare your router’s address on the CGNAT check.

IPv6

DB-IP lists 2 IPv6 ranges for AS7377, so customers can get IPv6 addresses, which databases place separately from IPv4.

Where its IPv4 space is used, according to DB-IP

US80%
DE6%
FR1%
GB1%
CA0.83%
PL0.82%
ES0.82%
TR0.56%

Share of the network’s IPv4 addresses by DB-IP Country Lite. IP Geolocation by DB-IP.

IP ranges

RangeAs CIDRAddresses
44.0.0.0 – 44.1.0.25544.0.0.0/16, 44.1.0.0/2465,792
44.1.4.0 – 44.1.7.25544.1.4.0/221,024
44.1.9.0 – 44.1.9.25544.1.9.0/24256
44.1.11.0 – 44.2.17.25544.1.11.0/24, 44.1.12.0/22 …67,328
44.2.19.0 – 44.2.51.25544.2.19.0/24, 44.2.20.0/22 …8,448
44.2.54.0 – 44.2.255.25544.2.54.0/23, 44.2.56.0/21 …51,712
44.3.128.0 – 44.4.16.25544.3.128.0/17, 44.4.0.0/20 …37,120
44.4.18.0 – 44.4.40.25544.4.18.0/23, 44.4.20.0/22 …5,888
44.4.42.0 – 44.4.43.25544.4.42.0/23512
44.4.46.0 – 44.4.50.25544.4.46.0/23, 44.4.48.0/23 …1,280
44.4.52.0 – 44.4.52.25544.4.52.0/24256
44.4.54.0 – 44.4.56.25544.4.54.0/23, 44.4.56.0/24768
44.4.60.0 – 44.4.63.25544.4.60.0/221,024
44.4.68.0 – 44.4.127.25544.4.68.0/22, 44.4.72.0/21 …15,360
44.4.132.0 – 44.4.255.25544.4.132.0/22, 44.4.136.0/21 …31,744
44.6.0.0 – 44.6.127.25544.6.0.0/1732,768
44.6.129.0 – 44.6.255.25544.6.129.0/24, 44.6.130.0/23 …32,512
44.7.16.0 – 44.8.4.25544.7.16.0/20, 44.7.32.0/19 …62,720
44.8.6.0 – 44.8.255.25544.8.6.0/23, 44.8.8.0/21 …64,000
44.9.24.0 – 44.10.3.25544.9.24.0/21, 44.9.32.0/19 …60,416
44.10.5.0 – 44.10.9.25544.10.5.0/24, 44.10.6.0/23 …1,280
44.10.11.0 – 44.10.255.25544.10.11.0/24, 44.10.12.0/22 …62,720
44.12.0.0 – 44.12.5.25544.12.0.0/22, 44.12.4.0/231,536
44.12.8.0 – 44.12.8.25544.12.8.0/24256
44.12.10.0 – 44.12.13.25544.12.10.0/23, 44.12.12.0/231,024
44.12.15.0 – 44.12.47.25544.12.15.0/24, 44.12.16.0/20 …8,448
44.12.49.0 – 44.12.95.25544.12.49.0/24, 44.12.50.0/23 …12,032
44.12.100.0 – 44.14.255.25544.12.100.0/22, 44.12.104.0/21 …171,008
44.15.128.0 – 44.15.239.25544.15.128.0/18, 44.15.192.0/19 …28,672
44.16.0.0 – 44.16.9.25544.16.0.0/21, 44.16.8.0/232,560
44.16.11.0 – 44.16.14.25544.16.11.0/24, 44.16.12.0/23 …1,024
44.16.16.0 – 44.16.49.25544.16.16.0/20, 44.16.32.0/20 …8,704
44.16.52.0 – 44.18.27.25544.16.52.0/22, 44.16.56.0/21 …124,928
44.18.32.0 – 44.18.50.25544.18.32.0/20, 44.18.48.0/23 …4,864
44.18.52.0 – 44.18.59.25544.18.52.0/22, 44.18.56.0/222,048
44.18.61.0 – 44.20.3.25544.18.61.0/24, 44.18.62.0/23 …116,480
44.20.5.0 – 44.20.28.25544.20.5.0/24, 44.20.6.0/23 …6,144
44.20.30.0 – 44.20.42.25544.20.30.0/23, 44.20.32.0/21 …3,328
44.20.44.0 – 44.24.134.25544.20.44.0/22, 44.20.48.0/20 …285,440
44.24.136.0 – 44.24.199.25544.24.136.0/21, 44.24.144.0/20 …16,384
44.24.204.0 – 44.24.220.25544.24.204.0/22, 44.24.208.0/21 …4,352
44.24.222.0 – 44.24.255.25544.24.222.0/23, 44.24.224.0/198,704
44.26.0.0 – 44.26.109.25544.26.0.0/18, 44.26.64.0/19 …28,160
44.26.111.0 – 44.26.163.25544.26.111.0/24, 44.26.112.0/20 …13,568
44.26.165.0 – 44.26.165.25544.26.165.0/24256
44.26.167.0 – 44.26.167.25544.26.167.0/24256
44.26.169.0 – 44.26.255.25544.26.169.0/24, 44.26.170.0/23 …22,272
44.28.0.0 – 44.30.0.25544.28.0.0/15, 44.30.0.0/24131,328
44.30.2.0 – 44.30.3.25544.30.2.0/23512
44.30.5.0 – 44.30.5.25544.30.5.0/24256
2001:48d0:c000:: – 2001:48d0:ffff:ffff:ffff:ffff:ffff:ffff2001:48d0:c000::/34IPv6
2607:f720:: – 2607:f720:ffff:ffff:ffff:ffff:ffff:ffff2607:f720::/32IPv6
Showing 50 of 247 IPv4 and 2 of 2 IPv6 ranges All ranges (CSV)

IP Geolocation by DB-IP, ASN Lite, CC BY 4.0.

Using an address from this network? See which sources agree on where it is.

Sources

  1. DB-IP IP to ASN Lite (CC BY 4.0) · checked 3 Nov 2026
  2. NRO RIR delegated-extended statistics · checked 4 Nov 2026