107.118.56.0/21 - AT&T Enterprises (AS20057)
CIDR
107.118.56.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
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 |
|---|---|---|---|---|
| 107.118.56.0/21 | AS20057 ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Invalid | - | 2026-10-13 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 107.64.0.0/10 | AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC | Valid | - | 2026-10-13 |
| 107.118.32.0/19 | AS20057 ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Valid | - | 2026-10-13 |
Transfer History
Registry transfers of 107.118.56.0/21, blocks inside it, or blocks containing it.
- 107.64.0.0/10M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 107.64.0.0/10 | M&A |
Related Prefixes
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/107.118.56.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/107.118.56.0/21" | jq
External Links