128.107.36.0/23 - CISCO SYSTEMS (AS109)
CIDR
128.107.36.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇺🇸 United States
City
Wilmington
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 |
|---|---|---|---|---|
| 128.107.36.0/23 | AS109 CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | ARINOther IRR | 2026-10-11 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 128.107.0.0/16 | AS109 CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | - | 2026-10-11 |
Transfer History
Registry transfers of 128.107.36.0/23, blocks inside it, or blocks containing it.
- 128.107.0.0/16M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 128.107.0.0/16 | M&A |
Origin ASN
AS109
CISCOSYSTEMS - CISCO SYSTEMS, INC.
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/128.107.36.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/128.107.36.0/23" | jq
External Links