206.207.56.0/21 - The University Of Arizona (AS1706)
CIDR
206.207.56.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
πΊπΈ United States
City
Denver
RIR
ARIN
Status
allocated
Allocated
1995-07-19
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
Swipe sideways to see all columns β
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below. | ||||
More-Specific Announcements
7 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 206.207.56.0/23 | AS1706 UNIV-ARIZ - The University of Arizona | No ROA | - | 2026-10-11 |
| 206.207.58.0/24 | AS701 UUNET - Verizon Business | No ROA | - | 2026-10-11 |
| 206.207.59.0/24 | AS1706 UNIV-ARIZ - The University of Arizona | No ROA | - | 2026-10-11 |
| 206.207.60.0/24 | AS701 UUNET - Verizon Business | No ROA | - | 2026-10-11 |
| 206.207.61.0/24 | AS701 UUNET - Verizon Business | No ROA | - | 2026-10-11 |
| 206.207.62.0/24 | AS1706 UNIV-ARIZ - The University of Arizona | No ROA | - | 2026-10-11 |
| 206.207.63.0/24 | AS701 UUNET - Verizon Business | No ROA | - | 2026-10-11 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS1706 | Other IRR | MAINT-AS22773 | 2025-03-13 |
Transfer History
Registry transfers of 206.207.56.0/21, blocks inside it, or blocks containing it.
- 206.207.56.0/21M&A Β·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 206.207.56.0/21 | WestNet, Inc. | University of Arizona | 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/206.207.56.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/206.207.56.0/21" | jq
External Links