173.251.0.0/17
🇺🇸CIDR
173.251.0.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇺🇸 United States
City
Bethpage
RIR
ARIN
Status
allocated
Allocated
6/18/2010
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 173.251.0.0/17 | AS6128CABLE-NET-1 - Cablevision Systems Corp. | Valid | ARIN | 5/31/2026 |
Covering Prefix
13 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 173.251.36.0/23 | AS6128CABLE-NET-1 - Cablevision Systems Corp. | Valid | — | 5/31/2026 |
| 173.251.30.0/24 | AS11737NMSL-6 - Nu-Age Managed Services, LLC | Valid | — | 5/31/2026 |
| 173.251.54.0/24 | AS1359913599 - Eisai Inc. | Valid | — | 5/31/2026 |
| 173.251.64.0/24 | AS16884TOURM-3 - Tourmaline Partners LLC | Valid | — | 5/31/2026 |
| 173.251.60.0/24 | AS22225PRESTIGE-BRANDS-INC - Prestige Brands, Inc. | Valid | — | 5/31/2026 |
| 173.251.19.0/24 | AS32696TVD-EDISON-777 - Tri State Voice & Data, LLC | Valid | — | 5/31/2026 |
| 173.251.111.0/24 | AS53475MAHER-TERMINALS - Maher Terminals LLC | Valid | — | 5/31/2026 |
| 173.251.91.0/24 | AS53725PBF-ASN - PBF Holding Company LLC | Valid | — | 5/31/2026 |
| 173.251.32.0/24 | AS54004LIGHTPATH - Cablevision Lightpath LLC | Invalid | — | 5/31/2026 |
| 173.251.28.0/24 | AS54004LIGHTPATH - Cablevision Lightpath LLC | Valid | — | 5/31/2026 |
| 173.251.114.0/24 | AS54004LIGHTPATH - Cablevision Lightpath LLC | Invalid | — | 5/31/2026 |
| 173.251.112.0/24 | AS54004LIGHTPATH - Cablevision Lightpath LLC | Invalid | — | 5/31/2026 |
| 173.251.110.0/24 | AS62751HSAUWC-AS - HSA-UWC | Invalid | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/173.251.0.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/173.251.0.0/17" | jq
External Links