Brown University
LEI
9M13ULPHBPDR83N6CB89
Registered name
Brown University
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 16 |
| All fragments | 449 blocks across 83 clusters |
| Cluster ID | 191782020 |
| Registry | AFRINIC |
| Owner jurisdiction | US-RI |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Legal identity | LEI 9M13ULPHBPDR83N6CB89 |
| Shared handles | clustered on 16 shared RIR contact/maintainer handles |
| Registry names | 6 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
IP Ranges (16)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 128.148.0.0/16 | Brown University | ARIN | ● high | |
| 128.148.0.0/21 | Brown University | BGP | ANNOUNCED | ● high |
| 128.148.8.0/21 | Brown University | BGP | ANNOUNCED | ● high |
| 128.148.16.0/20 | Brown University | BGP | ANNOUNCED | ● high |
| 128.148.32.0/19 | Brown University | BGP | ANNOUNCED | ● high |
| 128.148.64.0/18 | Brown University | BGP | ANNOUNCED | ● high |
| 128.148.128.0/17 | Brown University | BGP | ANNOUNCED | ● high |
| 192.91.235.0/24 | Brown University | BGP | ANNOUNCED | ● high |
| 192.138.176.0/24 | Brown University Health | BGP | ANNOUNCED | ● high |
| 192.138.177.0/24 | Brown University Health | BGP | ANNOUNCED | ● high |
| 192.138.178.0/24 | Brown University Health | BGP | ANNOUNCED | ● high |
| 2620:6e:6000::/48 | Brown University | BGP | ANNOUNCED | ● high |
| 197.211.9.84/30 | Brown_and_Company | AFRINIC | ASSIGNED PA | ● low |
| 203.146.16.48/28 | Brown-WFH-TH | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 2a00:2381:340f::/48 | BROWN-AND | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a00:2381:d446::/48 | BROWN-AND | RIPE | AGGREGATED-BY-LIR | ● low |
Network trust
what's this?
RPKI hygiene: F
how networks compare →
18.8%
of checked blocks have valid RPKI ROA coverage
(3 of 16)
Possible discrepancies (2)
These blocks are registered to Brown University 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.
| 2a00:2381:340f::/48 /48 | authorized for AS2856 — British Telecommunications PLC |
| 2a00:2381:d446::/48 /48 | authorized for AS2856 — British Telecommunications PLC |
NIC Handles
AC1613-AP
AS11078
AS40043
BROWNU-Z
BTNET-MNT
DUMY-RIPE
DUMY-RIPE
KHA15-ARIN
LIA1-AP
LIA1-AP
LOXINFO-IS
NOC1320-ARIN
+4 more