MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Massachusetts Institute of Technology
GLEIF verified
Complete entity footprint
2 linked clusters ·
112 netblocks ·
4,278,426 IPv4 addresses
This organisation's clusters combined by evidence —
shared GLEIF corporate family
— not name similarity, so genuinely different organisations that share a name are excluded.
LEI
DLZO3A31IADZ27B62557
Registered name
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 111 · 4,278,426 IPv4 addresses |
| All fragments | 112 blocks across 2 clusters |
| Cluster ID | 208786606 |
| Registry | BGP |
| Owner jurisdiction | US-MA |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI DLZO3A31IADZ27B62557 |
| Shared handles | clustered on 18 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
5 weekly snapshots · JSON
114
0 netblocks since 2026-07-05
2026-07-05
peak 114
2026-07-19
IP Ranges (111)
showing 50 of 111 — see all — ⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 38.97.116.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● high |
| 129.55.0.0/16 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● high |
| 129.55.201.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● high |
| 192.5.136.0/22 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● high |
| 192.5.140.0/23 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● high |
| 192.12.11.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● high |
| 192.26.149.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● high |
| 192.26.150.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● high |
| 192.54.222.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● high |
| 2001:4830:2446::/48 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● high |
| 18.0.0.0/16 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.0.0.0/11 | Massachusetts Institute of Technology | ARIN | DIRECT ALLOCATION | ● low |
| 18.1.0.0/16 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.0.0/16 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.1.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.2.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.3.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.4.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.5.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.6.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.7.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.8.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.9.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.10.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.11.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.12.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.13.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.14.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.15.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.16.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.17.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.18.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.19.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.20.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.21.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.22.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.23.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.28.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.67.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.69.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.90.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.103.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.104.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.105.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.106.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.108.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.109.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.111.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.116.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
| 18.3.122.0/24 | Massachusetts Institute of Technology | BGP | ANNOUNCED | ● low |
Domains hosted in this network
what's this?Corporate group (2 confirmed entities)
Network trust
what's this?
RPKI hygiene: F
how networks compare →
0.9%
of checked blocks have valid RPKI ROA coverage
(1 of 111)
No discrepancies found among checked blocks.
NIC Handles
AS3
AS395326
AS396527
AS63
BROWN2958-ARIN
CSAIL-ARIN
GOMES41-ARIN
MIT-2
MIT-Z
MNO78-ARIN
MNO78-ARIN
MNO78-ARIN
+6 more