ZAYO GROUP HOLDINGS, INC.
Zayo Bandwidth
LEI
529900Z6OTS7RT0V0I47
Registered name
ZAYO GROUP HOLDINGS, INC.
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 909 |
| All fragments | 1,149 blocks across 84 clusters |
| Cluster ID | 191594484 |
| Registry | APNIC |
| Owner jurisdiction | US-DE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Legal identity | LEI 529900Z6OTS7RT0V0I47 |
| Shared handles | clustered on 58 shared RIR contact/maintainer handles |
| Registry names | 16 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
2 weekly snapshots · JSON
909
0 netblocks since 2026-07-05
2026-07-05
peak 909
2026-07-06
IP Ranges (909)
showing 50 of 909 — see all — ⬇ export CSV (free export limited to 500 rows — subscribe for the full export)| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 5.57.80.201/32 | Zayo | PEERINGDB | ASSIGNED | ● high |
| 23.247.180.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 27.111.230.52/32 | Zayo | PEERINGDB | ASSIGNED | ● high |
| 36.255.57.55/32 | Zayo | PEERINGDB | ASSIGNED | ● high |
| 37.49.232.62/32 | Zayo | PEERINGDB | ASSIGNED | ● high |
| 37.49.237.180/32 | Zayo | PEERINGDB | ASSIGNED | ● high |
| 38.29.170.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 45.127.173.4/32 | Zayo | PEERINGDB | ASSIGNED | ● high |
| 45.141.85.0/24 | Media Land LLC | BGP | ANNOUNCED | ● high |
| 62.69.146.139/32 | Zayo | PEERINGDB | ASSIGNED | ● high |
| 64.20.96.0/19 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.124.13.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.124.47.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.124.84.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.124.92.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.124.127.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.124.134.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.124.213.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.125.169.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.125.227.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.125.229.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.184.0.0/17 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.184.1.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.184.2.0/23 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.184.105.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 64.191.233.36/32 | Zayo | PEERINGDB | ASSIGNED | ● high |
| 64.201.237.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 65.38.180.0/24 | Zayo Group, LLC | BGP | ANNOUNCED | ● high |
| 66.45.192.0/19 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.46.20.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.46.26.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.46.46.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.46.47.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.46.102.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.46.194.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.46.196.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.46.216.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.46.221.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.62.0.0/16 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.62.88.0/21 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.62.128.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.62.160.0/21 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.62.168.0/21 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.62.176.0/21 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.62.200.0/21 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.62.227.0/24 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 66.62.228.0/22 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 67.213.160.0/21 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 67.213.168.0/22 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
| 67.230.192.0/20 | Zayo Bandwidth | BGP | ANNOUNCED | ● high |
Network trust
what's this?
RPKI hygiene: C
how networks compare →
53.4%
of checked blocks have valid RPKI ROA coverage
(485 of 909)
Possible discrepancies (7)
These blocks are registered to Zayo Bandwidth but cryptographically authorized for a different, unrelated network (4 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2a0b:7ec0::/29 /29 | authorized for AS206728 — Media Land LLC |
| 2a0b:7ec0:1320::/48 /48 | authorized for AS206728 — Media Land LLC |
| 2a0b:7ec0:7701::/48 /48 | authorized for AS206728 — Media Land LLC |
| 45.141.85.0/24 /24 | authorized for AS206728 — Media Land LLC |
| 91.220.163.0/24 /24 | authorized for AS202799 — SYSECT D.O.O. |
| 206.254.231.0/24 /24 | authorized for AS3354 — University of Texas System |
| 208.187.29.0/24 /24 | authorized for AS7385 — Allstream Business US, LLC |
NIC Handles
ABOVENET-MNT
ABUSE5675-ARIN
AG890-AP
AH1063-AP
AS11079
AS11359
AS11686
AS13555
AS15290
AS16503
AS17025
AS19092
+46 more