Network report
Who holds an IP address, prefix or AS number, how it is routed (origin AS, RPKI, IRR), its reverse DNS, blocklist listings and PeeringDB record, with what to fix first.
Checking routing, RPKI, reverse DNS, blocklists and the registry. This usually takes 3 to 10 seconds.
Warning: AS27064 (DNIC-ASBLK-27032-27159) announces 945 IPv4 and 33 IPv6 prefixes. 3 warnings
| AS page | AS27064 |
|---|---|
| Holder | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) |
| Allocation | ARIN, United States (US), assigned 2003-01-16 |
| Prefixes (IPv4 / IPv6) | 945 / 33 |
| RPKI valid | 0% (0 / 978) |
| Upstreams and peers | 3 |
What to fix
-
Warning
10 of 978 announced prefixes have no ROA (RPKI not found): 6.16.136.0/24, 6.16.169.0/24, 6.64.104.0/24, 6.64.120.0/24, 6.64.143.0/24 (+5).
Without a ROA, networks cannot tell your routes from a hijack.
Fix: Create a ROA for each at your RIR portal, with origin AS27064 and a max length equal to the prefix length:
6.16.136.0/24 AS27064 max-length /24 6.16.169.0/24 AS27064 max-length /24 6.64.104.0/24 AS27064 max-length /24 6.64.120.0/24 AS27064 max-length /24 6.64.143.0/24 AS27064 max-length /24 26.16.0.0/14 AS27064 max-length /14 26.16.1.0/24 AS27064 max-length /24 26.16.2.0/24 AS27064 max-length /24 26.20.0.0/16 AS27064 max-length /16 28.5.0.0/16 AS27064 max-length /16
-
Warning
927 of 978 announced prefixes have no IRR route object: 205.61.251.0/24, 158.9.64.0/23, 130.22.188.0/24, 205.111.227.0/24, 134.182.191.0/24 (+922).
Many networks build their prefix filters from IRR data; without route objects some of them drop the routes.
Fix: Create route (IPv4) and route6 (IPv6) objects with origin AS27064 in your RIR’s IRR database (or RADB).
route: 205.61.251.0/24 origin: AS27064 route: 158.9.64.0/23 origin: AS27064 route: 130.22.188.0/24 origin: AS27064
- Warning
Checks
Routing and RPKI 10 of 978 announced prefixes have no ROA (RPKI not found): 6.16.136.0/24, 6.16.169.0/24, 6.64.104.0/24, 6.64.120.0/24, 6.64.143.0/24 (+5).
- Pass: AS27064 announces 945 IPv4 and 33 IPv6 prefixes.
- Warning: 10 of 978 announced prefixes have no ROA (RPKI not found): 6.16.136.0/24, 6.16.169.0/24, 6.64.104.0/24, 6.64.120.0/24, 6.64.143.0/24 (+5).
- Info: The RPKI state of 968 prefixes was not looked up (no ROA of AS27064 covers them; only the first 10 are checked).
- Warning: 927 of 978 announced prefixes have no IRR route object: 205.61.251.0/24, 158.9.64.0/23, 130.22.188.0/24, 205.111.227.0/24, 134.182.191.0/24 (+922).
- Info: 3 upstreams and peers, 79 downstream networks seen.
| Holder | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) |
|---|---|
| IPv4 prefixes | 945 |
| IPv6 prefixes | 33 |
| RPKI | 10 not found · 968 not looked up |
| Without IRR route object | 927 |
| Downstream networks | 79 |
| Prefix | RPKI |
|---|---|
| 6.16.136.0/24 | No ROA |
| 6.16.169.0/24 | No ROA |
| 6.64.104.0/24 | No ROA |
| 6.64.120.0/24 | No ROA |
| 6.64.143.0/24 | No ROA |
| 26.16.0.0/14 | No ROA |
| 26.16.1.0/24 | No ROA |
| 26.16.2.0/24 | No ROA |
| 26.20.0.0/16 | No ROA |
| 28.5.0.0/16 | No ROA |
Upstreams and peers seen to the left 3
Announced prefixes 978
Showing the first 100.
Source: RIPEstat (RIPE NCC RIS, Routinator, IRR); AS names: Team Cymru
Open in ASN & BGP prefix lookupRegistration Found at rdap.arin.net.
- Pass: Found at rdap.arin.net.
| Name | DNIC-ASBLK-27032-27159 |
|---|---|
| Handle | AS27032 |
| Range | AS27032 – AS27159 |
| Status | active |
| Registered | 2003-01-16T15:37:31-05:00 |
| Last changed | 2025-09-12T11:28:03-04:00 |
| Abuse contact | disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil |
| Registry (RIR) | ARIN |
|---|---|
| Country | United States (US) |
| Delegated on | 2003-01-16 |
| Status | Assigned |
| Delegated range | AS27032 – AS27159 |
Source: RIR delegation data, updated daily. The country is where the range was registered, not necessarily where it is used.
| Role | Name | |
|---|---|---|
| registrant | United States Department of Defense (DoD) |
Source: https://rdap.arin.net/registry/autnum/27064. Registration data from rdap.arin.net, shown under its terms of use (terms): not for marketing or bulk collection.
Open in WHOIS / RDAP lookupPeeringDB PeeringDB did not answer: HTTP 404
- Warning: PeeringDB did not answer: HTTP 404
Source: PeeringDB. Results are cached for an hour.
Open in PeeringDB lookup