AS391
AFCONC-BLOCK1-AS - Air Force Systems Networking
Announced Prefixes (BGP)
40total
40 IPv40 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)262,144
Announced (BGP)290,816
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
500
Prefix Limit (IPv6)
5
Allocated
—
Announced Prefixes
(BGP)36|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | — | 5/25/2026 | |
| No ROA | — | 5/25/2026 | |
| No ROA | — | 5/25/2026 | |
| No ROA | — | 5/25/2026 | |
| No ROA | — | 5/25/2026 | |
| No ROA | — | 5/25/2026 | |
| No ROA | — | 5/25/2026 | |
| No ROA | — | 5/25/2026 | |
| No ROA | — | 5/25/2026 | |
| No ROA | — | 5/25/2026 |
1–10 of 36
1 / 4
Allocated Prefixes
(RIR)4Prefix | Country | RIR | Status |
|---|---|---|---|
| 128.202.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 128.236.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 137.0.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 137.11.0.0/16 | 🇺🇸 US | ARIN | allocated |
ASPA
No ASPA
External Links
API
Open https://api.ipctl.io/v1/asn/391Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/391" | jq