AS18
🇺🇸UTEXAS - University of Texas at Austinca6a9d04dac145659798d2adc0ff5a14
ARINassigned
Announced Prefixes (BGP)
8total
8 IPv40 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)262,144
Announced (BGP)299,520
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
500
Prefix Limit (IPv6)
5
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
7/27/1984
Announced Prefixes
(BGP)8|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | RADB | 5/25/2026 | |
| No ROA | RADB | 5/25/2026 | |
| No ROA | RADB | 5/25/2026 | |
| No ROA | RADB | 5/25/2026 | |
| No ROA | ARIN | 5/25/2026 | |
| No ROA | RADB | 5/25/2026 | |
| No ROA | — | 5/25/2026 | |
| Valid | ARINRADB | 5/25/2026 |
Allocated Prefixes
(RIR)4Prefix | Country | RIR | Status |
|---|---|---|---|
| 128.62.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 128.83.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 129.116.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 146.6.0.0/16 | 🇺🇸 US | ARIN | allocated |
ASPA
No ASPA
External Links
API
Open https://api.ipctl.io/v1/asn/18Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/18" | jq