Data as of Nov 6, 2026
55.93.0.0/16
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 55.0.0.0/8 | AS721 | Business | United States Department of Defense (DoD) via Headquarters, USAISC |
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 | Holder | RPKI |
|---|---|---|---|---|
| 55.93.128.0/22 since Jun 2025 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.133.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.134.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.135.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.136.0/24 since Jul 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.137.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.138.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.139.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.140.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.142.0/24 since Jul 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.143.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.145.0/24 since Apr 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.146.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.147.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.148.0/24 since Oct 22, 2026 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.149.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.150.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.151.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.152.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.154.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.155.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.156.0/24 since Nov 2022 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.157.0/24 since May 2026 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.158.0/24 since Nov 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.160.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.161.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.162.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.163.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.164.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.165.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.166.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.167.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.168.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.170.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.171.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.172.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.173.0/24 since Jul 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.175.0/24 since Nov 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.176.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.178.0/24 since Oct 22, 2026 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.182.0/24 since May 2026 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.184.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.188.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.190.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.192.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.194.0/24 since May 2026 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.196.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.198.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.200.0/24 since Sep 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.204.0/24 since Nov 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.205.0/24 since Nov 2022 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.210.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.211.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.212.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.215.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.216.0/24 since May 2026 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.217.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.218.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.220.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.221.0/24 since Sep 2021 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.222.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.223.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.224.0/24 since Oct 22, 2026 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.225.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.226.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.227.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.228.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.229.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.230.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.232.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.233.0/24 since Jan 2021 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.234.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.235.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.236.0/24 since Apr 2019 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.237.0/24 since Dec 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.239.0/24 since Dec 2024 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.243.0/24 since Mar 2022 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.245.0/24 since Mar 2022 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.247.0/24 since Mar 2022 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.249.0/24 since Mar 2022 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.251.0/24 since Mar 2022 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.93.252.0/24 since May 2026 | AS370 | Business | United States Department of Defense (DoD) via Headquarters, USAISC |
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 |
|---|---|---|---|---|---|---|
| 55.0.0.0/8 | 16,777,216 | CONUS-RCAS | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Oct 26, 1996 | disa. |
| └ 55.0.0.0/8 | 16,777,216 | CONUS-RCAS | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 20, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 55.
0. 0. 0/ 8 - Registration type
- Direct Allocation
- Record created
- Oct 26, 1996
- Legacy
- yes
- Reallocated to
- Headquarters, USAISC (HEADQU-3)
- Reallocated
- Aug 20, 2025
Origin network
AS370
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- Registered
- Jun 30, 1989
- Domain
- mail.mil
- Industry
- Military, Defense, National Security, and International Affairs
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Oct 2008 · 18 yr
- Origin networks
- 2
- Last change of origin
- Oct 2008
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 55.
0. 0. 0/ 8 - Netname
- CONUS-RCAS
- Registrant
- Headquarters, USAISC
- Organization
- Headquarters, USAISC (HEADQU-3)
- Org address
- NETC-ANC CONUS TNOSC, Fort Huachuca, AZ, 85613
- Org country
- US
- Type
- Reallocated
- Handle
- NET-55-0-0-0-2
- Parent
- NET-55-0-0-0-1
- Created
- Aug 20, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 26, 1996
- Status
- assigned
Report abuse
Abuse contact
- disa.
columbus. ns. mbx. hostmaster-dod-nic@ mail. mil - Name
- Network DoD
- Phone
- +1-844-347-2457
- Handle
- MIL-HSTMST-ARIN