74.3.0.0/17 - GTT BACKBONE GTT Communications (AS3257)
CIDR
74.3.0.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇭🇰 Hong Kong
City
Hong Kong
RIR
ARIN
Status
allocated
Allocated
2005-12-20
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 74.3.0.0/17 | AS3257 GTT-BACKBONE GTT Communications Inc. | No ROA | Other IRR | 2026-10-11 |
More-Specific Announcements
4 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 74.3.0.0/19 | AS4637 ASN-TELSTRA-GLOBAL Telstra Global | Valid | - | 2026-10-11 |
| 74.3.32.0/19 | AS4637 ASN-TELSTRA-GLOBAL Telstra Global | Valid | - | 2026-10-11 |
| 74.3.64.0/19 | AS4637 ASN-TELSTRA-GLOBAL Telstra Global | Valid | - | 2026-10-11 |
| 74.3.96.0/19 | AS4637 ASN-TELSTRA-GLOBAL Telstra Global | Valid | - | 2026-10-11 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS3257 | Other IRR | MAINT-AS3257 | 2025-04-11 |
Transfer History
Registry transfers of 74.3.0.0/17, blocks inside it, or blocks containing it.
- 74.3.0.0/17M&A ·
- 74.3.0.0/17M&A ·
Related Prefixes
More prefixes of AS3257
All prefixes of AS3257 →Geolocation
Abuse Contact
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/74.3.0.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/74.3.0.0/17" | jq
External Links