Data as of Nov 4, 2026
208.71.72.0/21
1 residential-proxy exit · 30 daysCleveland Municipal School District
Residential-proxy exits
Proxy exits
1
0.05% of its addresses · 30 days
Spread
1 of 8
/24s with at least one exit
Oct 5, 2026 – Nov 3, 2026
Exits seen per day
1 observation
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 208.71.72.0/24 since Nov 2024 | AS40252 | Business | Cleveland Municipal School District | ||
| 208.71.73.0/24 since Dec 2023 | AS40252 | Business | Cleveland Municipal School District | ||
| 208.71.74.0/24 since Jun 2021 | AS40252 | Business | Cleveland Municipal School District | ||
| 208.71.75.0/24 since Nov 2024 | AS40252 | Business | Cleveland Municipal School District | ||
| 208.71.76.0/24 since Dec 2023 | AS40252 | Business | Cleveland Municipal School District | ||
| 208.71.77.0/24 since Dec 2023 | AS40252 | Business | Cleveland Municipal School District | ||
| 208.71.78.0/24 since Dec 2023 | AS40252 | Business | Cleveland Municipal School District | ||
| 208.71.79.0/24 since Nov 2024 | AS40252 | Business | 1 | Cleveland Municipal School District |
Network & registry
Origin network
AS40252
US
- Name
- Cleveland Municipal School District
- Type
- Education
- Registered
- Sep 26, 2006
- Domain
- clevelandmetroschools.org
- Industry
- Education and Research
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2006
- Current origin since
- Dec 2006 · 20 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS40252 | RADB | Proxy fbo Cleveland Municipal School District (AS40252) | MAINT-AS7029 | Nov 13, 2023 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 208.71.72.0/22 | AS40252 | RADB | 208.71.72.0/22 | MAINT-AS600 | Nov 13, 2023 |
| 208.71.76.0/22 | AS40252 | RADB | 208.71.76.0/22 | MAINT-AS600 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 208.
71. 72. 0/ 21 - Netname
- CLEVELAND-MUNICIPAL-SCHOOL-DISTRICT
- Registrant
- Cleveland Municipal School District
- Organization
- Cleveland Municipal School District (CMSD)
- Org address
- 1349 E 79th St, Cleveland, OH, 44103
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-208-71-72-0-1
- Parent
- NET-208-0-0-0-0
- Created
- Oct 16, 2006
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 16, 2006
- Status
- assigned
Report abuse
Abuse contact
- abuse@
Clevelandmetroschools. org - Name
- CMSD Woodland Data Center Help Desk
- Phone
- +1-216-838-0440
- Handle
- CWDCHD-ARIN