2600:380:f1f0::/44 - AT&T Enterprises (AS20057)
CIDR
2600:380:f1f0::/44
IP Version
IPv6
Addresses
19.3Y
Mask
/44
Country
🇺🇸 United States
City
Concord
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 2600:380:f1f0::/44 | AS20057 ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | No ROA | - | 2026-10-12 |
Related Announcements
1 less-specific, 6 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 2600:300::/24 | AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC | No ROA | - | 2026-10-12 |
| 2600:380:f1f1::/48 | AS64011 | No ROA | - | 2026-10-12 |
| 2600:380:f1f4::/47 | AS64011 | No ROA | - | 2026-10-12 |
| 2600:380:f1f6::/47 | AS64011 | No ROA | - | 2026-10-12 |
| 2600:380:f1f8::/47 | AS64011 | No ROA | - | 2026-10-12 |
| 2600:380:f1fb::/48 | AS64011 | No ROA | - | 2026-10-12 |
| 2600:380:f1fc::/46 | AS64011 | No ROA | - | 2026-10-12 |
Transfer History
Registry transfers of 2600:380:f1f0::/44, blocks inside it, or blocks containing it.
- 2600:300::/24M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 2600:300::/24 | M&A |
Related Prefixes
More prefixes of AS20057
All prefixes of AS20057 →Geolocation
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/2600:380:f1f0::/44Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/2600:380:f1f0::/44" | jq
External Links