143.58.0.0/22 RPKI valid
Announced by AS19977 Mayer Brown LLP.
Origin
| Origin AS | RPKI | Peers seeing it | Sample path | First seen | Last seen |
|---|---|---|---|---|---|
| AS19977 Mayer Brown LLP | RPKI valid | 43 | 3454917419977 | 2026-09-18 | 2026-11-13 |
RPKI
1 ROA covers this prefix
| ROA prefix | Max length | Authorised origin | Trust anchor | Result for this route |
|---|---|---|---|---|
| 143.58.0.0/22 | /22 | AS19977 | arin | authorises it |
Registry
Who this address space is delegated to, regardless of whether it is routed
- Delegated block
- 143.58.0.0/18
- RIR
- ARIN
- Country
- 🇺🇸 US
- Status
- allocated
- Allocated
- 1990-03-26
Less specific routes
Announced prefixes that contain this one
Nothing less specific is announced.
More specific routes
4 announced prefixes inside this one
| Prefix | Origin | RPKI | Peers | First seen |
|---|---|---|---|---|
| 143.58.0.0/24 v4 | AS19977 Mayer Brown LLP | RPKI valid | 41 | 2026-09-18 |
| 143.58.1.0/24 v4 | AS19977 Mayer Brown LLP | RPKI valid | 41 | 2026-09-18 |
| 143.58.2.0/24 v4 | AS19977 Mayer Brown LLP | RPKI valid | 41 | 2026-09-18 |
| 143.58.3.0/24 v4 | AS19977 Mayer Brown LLP | RPKI valid | 41 | 2026-09-18 |