Southwest Research Institute
Data as of 2026-10-18
BGP inherited
This organisation
| Netblocks | 19 · 66,392 IPv4 addresses |
| IPv6 | 5 prefixes (largest 2600:5c01:4a86::/48) |
| Record ID | 250156550 |
| Registry | BGP |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 61 shared RIR contact/maintainer handles |
| Registry names | 3 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (19)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 50.169.225.0/24 | Southwest Research Institute | BGP | ANNOUNCED | ● high |
| 65.241.78.0/24 | SOUTHWEST RESEARCH INSTITUTE | ARIN | ASSIGNMENT | ● high |
| 67.79.32.0/29 | SOUTHWEST RESEARCH INSTITUTE | ARIN | ASSIGNMENT | ● high |
| 70.236.133.200/29 | Southwest Research Institute | ARIN | ASSIGNMENT | ● high |
| 70.247.87.192/28 | Southwest Research Institute | ARIN | ASSIGNMENT | ● high |
| 71.41.21.128/29 | SOUTHWEST RESEARCH INSTITUTE | ARIN | ASSIGNMENT | ● high |
| 97.77.232.160/29 | SOUTHWEST RESEARCH INSTITUTE | ARIN | ASSIGNMENT | ● high |
| 98.6.200.32/29 | SOUTHWEST RESEARCH INSTITUTE | ARIN | ASSIGNMENT | ● high |
| 98.6.213.112/29 | SOUTHWEST RESEARCH INSTITUTE | ARIN | ASSIGNMENT | ● high |
| 129.162.0.0/16 | Southwest Research Institute | BGP | ANNOUNCED | ● high |
| 147.0.212.24/29 | SOUTHWEST RESEARCH INSTITUTE | ARIN | ASSIGNMENT | ● high |
| 208.46.115.248/29 | SOUTHWEST RESEARCH INSTITUTE | ARIN | ASSIGNMENT | ● high |
| 208.184.105.0/24 | Southwest Research Institute | BGP | ANNOUNCED | ● high |
| 209.133.122.128/29 | Southwest Research Institute | ARIN | ASSIGNMENT | ● high |
| 2600:5000:9850::/64 | SOUTHWEST RESEARCH INSTITUTE | ARIN | ASSIGNMENT | ● high |
| 2600:5c01:4a86::/48 | SOUTHWEST RESEARCH INSTITUTE | ARIN | ASSIGNMENT | ● high |
| 2605:ed00:ec97::/48 | SOUTHWEST RESEARCH INSTITUTE | ARIN | ASSIGNMENT | ● high |
| 2620:14::/48 | Southwest Research Institute | BGP | ANNOUNCED | ● high |
| 2620:af:e000::/48 | Southwest Research Institute | ARIN | DIRECT ALLOCATION | ● high |
IPv6 ranges (5)
Footprint over time
17 weekly snapshots · JSON
23
0 netblocks since 2026-07-05
2026-07-05
peak 23
2026-10-18
Network trust
what's this?
RPKI hygiene: C
how networks compare →
65.2%
of checked blocks have valid RPKI ROA coverage
(15 of 23)
Possible discrepancies (2)
These blocks are registered to Southwest Research Institute but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2600:5c01:4a86::/48 /48 | authorized for AS10796 — Charter Communications Inc |
| 2605:ed00:ec97::/48 /48 | authorized for AS11427 — Charter Communications Inc |
NIC Handles
ABUSE19-ARIN
ABUSE3-ARIN
ABUSE5603-ARIN
ABUSE5675-ARIN
ABUSE7-ARIN
AEL-360
AS397126
AS6481
C01121908
C01173418
C01196423
C01692687
+49 more