Mediacom Communications Corp

Data as of 2026-08-30
BGP inherited
Cluster stats
Netblocks3,906 · 1,555,736 IPv4 addresses
IPv6 1,281 prefixes (largest 2604:2d80::/28)
Registered in United States (2,633) · BD (4) · Russia (2) · Germany (1) · Italy (1)
All fragments 3,936 blocks across 12 clusters
Cluster ID232276295
RegistryAPNIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 26 shared RIR contact/maintainer handles
Registry names 9 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

10 weekly snapshots · JSON
3,923 +105 netblocks since 2026-07-05
2026-07-05 peak 3,923 2026-08-30

IP Ranges (3,906)

showing 50 of 3,906 — see all — ⬇ export CSV (free export limited to 500 rows — subscribe for the full export)
CIDR Org name Registry Status Confidence
24.129.208.0/20 Mediacom Communications Corp ARIN DIRECT ALLOCATION ● high
24.129.210.0/23 Mediacom Communications Corp BGP ANNOUNCED ● high
24.129.212.0/22 Mediacom Communications Corp BGP ANNOUNCED ● high
24.129.216.0/21 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.0.0/20 Mediacom Communications Corporation ARIN DIRECT ALLOCATION ● high
45.59.0.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.1.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.2.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.3.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.4.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.5.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.6.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.7.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.8.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.9.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.10.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.11.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.12.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.13.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.14.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
45.59.15.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.0.0/22 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.0.0/14 Mediacom Communications Corp ARIN DIRECT ALLOCATION ● high
50.80.4.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.5.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.6.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.7.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.8.0/23 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.10.0/23 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.12.0/22 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.16.0/20 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.32.0/23 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.34.0/23 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.36.0/23 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.38.0/23 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.40.0/21 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.48.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.49.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.50.0/23 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.52.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.53.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.54.0/23 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.56.0/21 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.64.0/21 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.72.0/21 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.80.0/21 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.88.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.89.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.90.0/23 Mediacom Communications Corp BGP ANNOUNCED ● high
50.80.92.0/24 Mediacom Communications Corp BGP ANNOUNCED ● high

IPv6 ranges (1,281)

showing the 15 largest allocations
CIDR
2604:2d80::/28
2604:2e80::/28
2604:2d81:4000::/34
2604:2e8f:1000::/36
2604:2d80:1400::/38
2604:2d80:1800::/38
2604:2d80:1c00::/38
2604:2d80:2000::/38
2604:2d80:2400::/38
2604:2d80:2c00::/38
2604:2d80:3000::/38
2604:2d80:3400::/38
2604:2d80:3c00::/38
2604:2d80:4000::/38
2604:2d80:400::/38

Domains hosted in this network

what's this?
1stsecuritybank.com mchsi.com mediacombb.net

Customer-delegated space

how is this classified?
Unclassified 3,896 (99.7%)
Customer access pools 27 (0.7%)

Network trust

what's this?
RPKI hygiene: A how networks compare →
100.0% of checked blocks have valid RPKI ROA coverage (2,000 of 2,000, sampled from 3,923)
Possible discrepancies (1351)

These blocks are registered to Mediacom Communications Corp but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2604:2d80:400::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2d80:3000::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2d81:3800::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2d81:3c00::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2d81:8000::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2d81:8400::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2d81:8800::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2d81:8c00::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2d81:9000::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2d81:9400::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2d81:9800::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2d81:9c00::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2e80:400::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2e86::/38 /38 authorized for AS19905 — Arbor Cloud
2604:2e86:400::/38 /38 authorized for AS19905 — Arbor Cloud
+1336 more — see the REST API

NIC Handles

AM3878-AP APNIC-HM AS151969 AS30036 DUMY-RIPE DUMY-RIPE HCD1-ARIN HCD1-ARIN INTERB-MNT IPOPE24-ARIN JSE90-ARIN JWA248-ARIN +14 more