Data as of Nov 3, 2026
55.2.0.0/16
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 |
|---|---|---|---|---|
| 55.2.6.0/24 since Apr 2019 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.7.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.8.0/24 since Apr 2019 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.9.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.10.0/24 since Apr 2019 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.11.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.12.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.13.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.14.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.15.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.16.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.17.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.18.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.19.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.20.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.21.0/24 since Nov 2020 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.22.0/23 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.24.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.25.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.26.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.27.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.29.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.31.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.33.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.34.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.35.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.36.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.37.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.38.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.39.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.40.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.41.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.43.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.45.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.46.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.47.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.48.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.49.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.50.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.51.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.52.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.53.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.54.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.55.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.57.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.59.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.60.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.62.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.63.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.64.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.67.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.69.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.70.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.71.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.72.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.73.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.80.0/24 since Aug 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.81.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.82.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.83.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.84.0/22 since Apr 2019 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.92.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.93.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.94.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.95.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.96.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.97.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.98.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.99.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.101.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.102.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.104.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.106.0/24 since Nov 2025 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.107.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.108.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.109.0/24 since Jan 2022 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.110.0/24 since Oct 22, 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.111.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.113.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.114.0/24 since Oct 2025 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.115.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.117.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.118.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.119.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.124.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.125.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.126.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.128.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.129.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.131.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.132.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.133.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.134.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.135.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.136.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.137.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.139.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.140.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.141.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.142.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.143.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.144.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.145.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.146.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.147.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.150.0/24 since May 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.153.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.156.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.159.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.160.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.163.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.164.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.168.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.172.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.174.0/24 since Aug 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.176.0/24 since Sep 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.196.0/22 since Jul 2021 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.212.0/24 since Jun 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.213.0/24 since Sep 2026 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.230.0/24 since Mar 2020 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.231.0/24 since Mar 2020 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.232.0/24 since Mar 2020 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.233.0/24 since Nov 2020 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.234.0/23 since Nov 2020 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.241.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.245.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.246.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.247.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.250.0/24 since Jun 2023 | AS344 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.2.252.0/24 since Jun 2023 | AS344 | 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 | [email protected] |
| └ 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
AS344
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
- Jan 2017 · 9.8 yr
- Origin networks
- 2
- Last change of origin
- Aug 2011
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
- [email protected]
- Name
- Network DoD
- Phone
- +1-844-347-2457
- Handle
- MIL-HSTMST-ARIN