12.149.23.0/24 - Denton County, Texas (AS395975)
CIDR
12.149.23.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇺🇸 United States
City
Denton
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 12.149.23.0/24 | AS395975 DENTONCOAS-1 - Denton County, Texas | No ROA | - | 2026-10-11 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 12.0.0.0/8 | AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC | No ROA | - | 2026-10-11 |
| 12.128.0.0/9 | AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC | No ROA | - | 2026-10-11 |
Transfer History
Registry transfers of 12.149.23.0/24, blocks inside it, or blocks containing it.
- 12.0.0.0/8M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 12.0.0.0/8 | 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/12.149.23.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/12.149.23.0/24" | jq
External Links