Data as of Nov 5, 2026
63.121.133.0/24
No anonymizer space · no proxy exits in 30 daysEZE Castle Integration Inc. · reallocated from Verizon Business
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 63.121.132.0/23 since May 2005 | AS14717 | Internet provider | Verizon Business via EZE Castle Integration Inc. | ||
| 63.112.0.0/12 | AS701 | Internet provider | 290 22 always on | Verizon Business |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 63.64.0.0/10 | 4,194,304 | UUNET63 | Verizon Business (MCICS) · US | Direct Allocation | Jan 22, 1999 | abuse@ |
| └ 63.121.132.0/22 | 1,024 | UU-63-121-132 | EZE Castle Integration Inc. (EZCI) · US | Reallocated | Oct 11, 2000 | — |
| └ 63.121.133.192/27 | 32 | EZCSTL-63-121-133-192--27 | unknown | — | — | — |
Network & registry
IPv4 market
Holder
- Organization
- Verizon Business
- Handle
- MCICS
- Range
- 63.
64. 0. 0/ 10 - Registration type
- Direct Allocation
- Record created
- Jan 22, 1999
- Reallocated to
- EZE Castle Integration Inc. (EZCI)
- Reallocated range
- 63.
121. 132. 0/ 22 - Reallocated
- Oct 11, 2000
Origin network
AS14717
US
- Name
- EZE Castle Integration Inc.
- Type
- Internet provider
- Registered
- Jan 31, 2000
- Domain
- eci.com
- Website
- www.eci.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jun 2005
- Current origin since
- Jun 2005 · 21 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 63.121.132.0/22 | AS14717 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 63.
121. 132. 0/ 22 - Netname
- UU-63-121-132
- Registrant
- EZE Castle Integration Inc.
- Organization
- EZE Castle Integration Inc. (EZCI)
- Org address
- 100 High Street, Boston, MA, 02110
- Org country
- US
- Type
- Reallocated
- Handle
- NET-63-121-132-0-1
- Parent
- NET-63-64-0-0-1
- Created
- Oct 11, 2000
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 22, 1999
- Status
- assigned
Report abuse
Abuse contact
- abuse@
verizon. com - Name
- abuse
- Phone
- +1-800-900-0241
- Handle
- ABUSE3-ARIN