Data as of Nov 5, 2026
63.245.208.0/24
No anonymizer space · no proxy exits in 30 daysMozilla Corporation
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 63.245.208.0/20 | 4,096 | MOZNET-1 | Mozilla Corporation (MOZIL-1) · US | Direct Allocation | Jun 16, 2006 | hostmaster@ |
| └ 63.245.208.0/23 | 512 | MOZILLA-MDC1 | Mozilla (C06787418) · US | Reassigned | Nov 8, 2017 | hostmaster@ via MOZNET-1 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Announced by
Covering announcement 63.245.208.0/23
- Prefix
- 63.245.208.0/23
- Announced by
- AS36856 Mozilla Corporation
- Type
- Business
- RPKI
- RPKI valid
- Netname
- MOZILLA-MDC1
- Registrant
- Mozilla
- RIR
- ARIN
IPv4 market
Holder
- Organization
- Mozilla Corporation
- Handle
- MOZIL-1
- Range
- 63.
245. 208. 0/ 20 - Registration type
- Direct Allocation
- Record created
- Jun 16, 2006
Origin network
AS36856
US
- Name
- Mozilla Corporation
- Type
- Business
- Registered
- May 15, 2006
- Domain
- mozilla.org
- Website
- www.mozilla.org/
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 63.245.208.0/23
63.245.208.0/23
Routing history
- Pattern
- Stable
- First seen
- Sep 2017
- Current origin since
- Sep 2017 · 9.2 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 63.245.208.0/20 | AS36856 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 63.
245. 208. 0/ 23 - Netname
- MOZILLA-MDC1
- Registrant
- Mozilla
- Organization
- Mozilla (C06787418)
- Type
- Reassigned
- Handle
- NET-63-245-208-0-2
- Parent
- NET-63-245-208-0-1
- Created
- Nov 8, 2017
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 16, 2006
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
mozilla. com - Name
- Mozilla Hostmaster
- Phone
- +1-650-903-0800
- Handle
- MOZIL-ARIN