MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Massachusetts Institute of Technology
Data as of 2026-11-01
GLEIF verified
Complete entity footprint
2 linked clusters · 131 netblocks · 2,367,242 IPv4 addresses · 13 IPv6 prefixes
This organisation's clusters combined by evidence — shared GLEIF corporate family — not name similarity, so genuinely different organisations that share a name are excluded.
View the full entity page →
LEI
DLZO3A31IADZ27B62557
Registered name
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Jurisdiction
US-MA
Ultimate parent
No parent on file in GLEIF
This organisation
Netblocks130 · 2,367,242 IPv4 addresses
IPv6 12 prefixes (largest 2603:4000::/24)
Registered in United States (128) · India (1)
Also registered under this name 143 netblocks across 2 separate records
Record ID259492560
RegistryBGP
Owner jurisdictionUS-MA
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI DLZO3A31IADZ27B62557
Shared handles clustered on 30 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 (130)

⬇ export CSV
CIDR Org name Registry Status Confidence
4.21.160.8/29 Massachusetts Institute of Technology ARIN ASSIGNMENT ● high
18.0.0.0/11 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
38.97.116.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● high
128.30.0.0/16 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
128.31.0.0/16 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
128.52.0.0/16 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
129.55.0.0/16 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
129.55.201.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● high
192.5.135.0 – 192.5.141.255 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● 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
192.12.127.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.12.252.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.12.253.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.12.254.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.12.255.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.16.181.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.26.95.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● 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
192.35.134.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.35.135.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.35.136.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.35.137.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.52.61.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.52.62.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.52.63.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.52.64.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.52.65.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.52.66.0/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
192.54.222.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● high
192.233.95.0/24 Massachusetts Institute of Technology ARIN ASSIGNMENT ● high
206.53.143.8/32 Massachusetts Institute of Technology PEERINGDB ASSIGNED ● high
206.53.143.22/32 Massachusetts Institute of Technology PEERINGDB ASSIGNED ● high
2001:504:47::3:0:1/128 Massachusetts Institute of Technology PEERINGDB ASSIGNED ● high
2001:504:47::3:0:2/128 Massachusetts Institute of Technology PEERINGDB ASSIGNED ● high
2001:4830:2446::/48 Massachusetts Institute of Technology ARIN ASSIGNMENT ● high
2603:4000::/24 Massachusetts Institute of Technology ARIN DIRECT ALLOCATION ● high
18.0.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● 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
18.3.151.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.3.152.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.3.153.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.3.154.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.3.155.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.4.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.5.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.6.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.23.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.32.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.34.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.39.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.40.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.54.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.80.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.82.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.84.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.102.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.108.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.117.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.118.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.119.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.7.120.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.8.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.9.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.10.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.11.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.12.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.13.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.14.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.15.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.16.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.17.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.18.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.22.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.23.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.25.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.26.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.27.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.29.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
18.31.0.0/16 Massachusetts Institute of Technology BGP ANNOUNCED ● low
103.182.177.0/24 Massachusetts Institute of Technology BGP ANNOUNCED ● low
128.30.0.0/15 Massachusetts Institute of Technology BGP ANNOUNCED ● low
2603:4000::/32 Massachusetts Institute of Technology BGP ANNOUNCED ● low
2603:4001::/32 Massachusetts Institute of Technology BGP ANNOUNCED ● low
2603:4007::/32 Massachusetts Institute of Technology BGP ANNOUNCED ● low
2603:4008::/32 Massachusetts Institute of Technology BGP ANNOUNCED ● low
2603:4009::/32 Massachusetts Institute of Technology BGP ANNOUNCED ● low
2603:400a::/32 Massachusetts Institute of Technology BGP ANNOUNCED ● low
2603:4010::/32 Massachusetts Institute of Technology BGP ANNOUNCED ● low
2603:4011::/32 Massachusetts Institute of Technology BGP ANNOUNCED ● low

IPv6 ranges (12)

CIDR
2603:4000::/24
2603:4000::/32
2603:4001::/32
2603:4007::/32
2603:4008::/32
2603:4009::/32
2603:400a::/32
2603:4010::/32
2603:4011::/32
2001:4830:2446::/48
2001:504:47::3:0:1/128
2001:504:47::3:0:2/128

Footprint over time

19 weekly snapshots · JSON
142 +28 netblocks since 2026-07-05
2026-07-05 peak 142 2026-11-01

Domains this organisation publishes

what's this?
mit.edu

Other domains hosted in this network

what's this?
mit.edu debian.org physionet.org

Corporate group (2 confirmed entities)

Network trust

what's this?
RPKI hygiene: F how networks compare →
2.1% of checked blocks have valid RPKI ROA coverage (3 of 142)
Possible discrepancies (1)

These blocks are registered to Massachusetts Institute of Technology 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.

103.182.177.0/24 /24 authorized for AS133296 — Web Werks India Pvt. Ltd.

NIC Handles

AS133296 AS3 AS3 AS395326 AS396527 AS63 BROWN2958-ARIN CSAIL-ARIN GOMES41-ARIN HAYST5-ARIN HAYST5-ARIN HAYST5-ARIN +18 more