$ query “AS2576” --type=asn → 1 result(s)
AS2576 · DOT-AS
U. S. Department of Transportation
AS2576 is run by U. S. Department of Transportation and is a government/public-admin stub network, based in the United States since 1993. The system announces a solid 268 800 IPv4 addresses, including a /16, and supports IPv6. Most of its address space is geolocated to the United States.
- Pioneer — Registered before the year 2000
Basic Information
- Country
- 🇺🇸 United States
- Category
- Government/Public Administration
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- April 22, 1993
- Last Changed
- August 10, 2026
- Last Seen
- September 14, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 20 / 15
- IPv6 Prefixes (raw / aggregated)
- 33 / 15
- IPv4 Addresses
- 268 800
- Largest IPv4 Prefix
- /16 (65 536 addresses)
- Largest IPv6 Prefix
- /43
- Geolocated Countries
- 🇺🇸 United States (336 896 IPs)
- Prefix Changed
- August 10, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 1 upstream providing transit
- Degree
- 1 unique BGP neighbor
- Reach
- 0 networks in customer cone
Upstream Providers (1)
- AS13979 — ATT-IPFR
Prefix Lists
IPv4 Prefixes (20 total)
- 152.119.0.0/16 (65 536 addresses (/16 prefix))
- 152.120.0.0/16 (65 536 addresses (/16 prefix))
- 152.122.0.0/16 (65 536 addresses (/16 prefix))
- 169.135.0.0/16 (65 536 addresses (/16 prefix))
- 204.86.184.0/21 (2 048 addresses (/21 prefix))
- 199.79.176.0/22 (1 024 addresses (/22 prefix))
- 204.68.194.0/23 (512 addresses (/23 prefix))
- 204.68.196.0/23 (512 addresses (/23 prefix))
- 204.69.250.0/23 (512 addresses (/23 prefix))
- 204.86.192.0/23 (512 addresses (/23 prefix))
- 204.152.44.0/23 (512 addresses (/23 prefix))
- 204.68.202.0/24 (256 addresses (/24 prefix))
- 204.69.252.0/24 (256 addresses (/24 prefix))
- 199.79.180.0/24 (256 addresses (/24 prefix))
- 204.238.19.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (33 total)
- 2001:19e8:220::/43
- 2001:19e8:260::/44
- 2001:19e8:f0::/45
- 2001:19e8:f8::/46
- 2001:19e8:d4::/46
- 2001:19e8:1002::/47
- 2001:19e8::/47
- 2001:19e8:d2::/47
- 2001:19e8:d8::/47
- 2001:19e8:d::/48
- 2001:19e8:da::/48
- 2001:19e8:d1::/48
- 2001:19e8:e::/48
- 2001:19e8:a::/48
- 2001:19e8:2::/48