171.75.0.0/17 - Level 3 Parent (AS3356)
CIDR
171.75.0.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇬🇧 United Kingdom
City
London
RIR
RIPE NCC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 171.75.0.0/17 | AS3356 LEVEL3 - Level 3 Parent, LLC | No ROA | - | 2026-10-12 |
Related Announcements
1 less-specific, 4 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 171.75.0.0/16 | AS3356 LEVEL3 - Level 3 Parent, LLC | No ROA | - | 2026-10-12 |
| 171.75.0.0/18 | AS3356 LEVEL3 - Level 3 Parent, LLC | No ROA | - | 2026-10-12 |
| 171.75.58.0/23 | AS10753 LUMEN-LEGACY-L3-CUSTOMER-SHARED-USE - Level 3 Parent, LLC | No ROA | - | 2026-10-12 |
| 171.75.64.0/18 | AS3549 LVLT-3549 - Level 3 Parent, LLC | No ROA | - | 2026-10-12 |
| 171.75.112.0/24 | AS3549 LVLT-3549 - Level 3 Parent, LLC | No ROA | - | 2026-10-12 |
Transfer History
Registry transfers of 171.75.0.0/17, blocks inside it, or blocks containing it.
- 171.75.0.0/16inter-RIRTransfer ·
- 171.75.0.0/16M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 171.75.0.0/16inter-RIR | Lumen Technologies UK Limited | Transfer | ||
| 171.75.0.0/16 | M&A |
Origin ASN
AS3356
LEVEL3 - Level 3 Parent, LLC
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 RIPE NCC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/171.75.0.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/171.75.0.0/17" | jq
External Links