Central Michigan University
Data as of 2026-08-16
GLEIF verified
LEI
549300ADPRW1MSPHFS73
Registered name
Central Michigan University
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 25 · 180,288 IPv4 addresses |
| IPv6 | 1 prefix (largest 2607:ff30::/32) |
| All fragments | 32 blocks across 3 clusters |
| Cluster ID | 222407728 |
| Registry | BGP |
| Owner jurisdiction | US-MI |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 549300ADPRW1MSPHFS73 |
| Shared handles | clustered on 8 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
6 weekly snapshots · JSON
29
+23 netblocks since 2026-07-12
2026-07-12
peak 29
2026-08-16
IP Ranges (25)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 35.32.0.0/16 | Central Michigan University | BGP | ANNOUNCED | ● high |
| 35.33.0.0/18 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 35.33.64.0/19 | Central Michigan University | BGP | ANNOUNCED | ● high |
| 35.34.0.0/20 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 35.34.16.0/20 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 35.34.32.0/20 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 35.34.48.0 – 35.34.79.255 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 141.209.0.0/16 | Central Michigan University | ARIN | DIRECT ALLOCATION | ● high |
| 198.108.21.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 198.108.236.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 198.109.53.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 198.109.80.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 198.109.86.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 198.109.127.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 198.109.137.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 198.110.93.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 198.110.161.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 198.111.33.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 198.111.34.0/23 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 198.111.58.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 207.72.32.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 207.73.171.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 207.74.165.0/24 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 207.74.181.64/26 | Central Michigan University | ARIN | ASSIGNMENT | ● high |
| 2607:ff30::/32 | Central Michigan University | ARIN | DIRECT ALLOCATION | ● high |
IPv6 ranges (1)
| CIDR |
|---|
| 2607:ff30::/32 |
Network trust
what's this?
RPKI hygiene: B
how networks compare →
82.8%
of checked blocks have valid RPKI ROA coverage
(24 of 29)
Possible discrepancies (21)
These blocks are registered to Central Michigan 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.
| 35.33.0.0/18 /18 | authorized for AS237 — Merit Network Inc. |
| 35.33.64.0/19 /19 | authorized for AS237 — Merit Network Inc. |
| 35.33.64.0/19 /19 | authorized for AS237 — Merit Network Inc. |
| 35.34.0.0/20 /20 | authorized for AS237 — Merit Network Inc. |
| 35.34.16.0/20 /20 | authorized for AS237 — Merit Network Inc. |
| 35.34.32.0/20 /20 | authorized for AS237 — Merit Network Inc. |
| 198.111.34.0/23 /23 | authorized for AS237 — Merit Network Inc. |
| 198.108.21.0/24 /24 | authorized for AS237 — Merit Network Inc. |
| 198.108.236.0/24 /24 | authorized for AS237 — Merit Network Inc. |
| 198.109.127.0/24 /24 | authorized for AS237 — Merit Network Inc. |
| 198.109.137.0/24 /24 | authorized for AS237 — Merit Network Inc. |
| 198.109.53.0/24 /24 | authorized for AS237 — Merit Network Inc. |
| 198.109.80.0/24 /24 | authorized for AS237 — Merit Network Inc. |
| 198.109.86.0/24 /24 | authorized for AS237 — Merit Network Inc. |
| 198.110.161.0/24 /24 | authorized for AS237 — Merit Network Inc. |
+6 more — see the REST API
NIC Handles
ABUSE164-ARIN
AS27274
CMU
CMU-Z
DTA6-ARIN
NIMSC-ARIN
ZC172-ARIN
ZC172-ARIN