NBCUNIVERSAL INTERNATIONAL LIMITED
BGP inherited
Cluster stats
| Netblocks | 58 · 47,558 IPv4 addresses |
| All fragments | 60 blocks across 2 clusters |
| Cluster ID | 208810591 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 11 shared RIR contact/maintainer handles |
| Registry names | 3 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
5 weekly snapshots · JSON
57
-1 netblocks since 2026-07-05
2026-07-05
peak 58
2026-07-19
Domains hosted in this network
what's this?IP Ranges (58)
showing 50 of 58 — see all — ⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 8.11.200.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.149.85.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.172.163.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.175.130.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.200.194.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.203.232.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.207.32.0/21 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.218.3.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.218.20.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.218.36.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.220.223.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.221.27.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.221.162.0/23 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.225.179.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.227.232.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.228.144.0/20 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.229.129.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.230.144.0/20 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.234.250.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 50.239.57.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 64.129.180.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.32.0/23 | NBCUNIVERSAL INTERNATIONAL LIMITED | ARIN | ASSIGNMENT | ● high |
| 70.39.32.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.34.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.36.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.37.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.40.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.41.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.44.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.45.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.46.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.47.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.48.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.58.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.59.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.61.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.62.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 70.39.63.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 173.213.208.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 173.213.210.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 192.251.69.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 204.237.248.0/23 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 208.73.112.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 208.73.114.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 208.73.115.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 209.23.192.0/22 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 209.116.149.0/24 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 216.4.176.0/23 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 216.4.176.0/22 | NBCUniversal | BGP | ANNOUNCED | ● high |
| 216.4.178.0/23 | NBCUniversal | BGP | ANNOUNCED | ● high |
Possibly related to this organisation
what's this?Same name family
Separately-registered clusters whose names share “NBCUNIVERSAL” — often
per-country or per-system registrations of the same brand, occasionally a different
organisation sharing the name. Not counted in this organisation's own footprint.
- NBCUNIVERSAL-GTT6 2 blocks
Sub-allocations under carriers
IP blocks an ISP reassigned to a similarly-named customer — decoded from the ISP's own
naming convention, not a direct registration.
- Nbcuniversal International Ltd via COLT Technology Services Group Limited sub-allocation
Network trust
what's this?
RPKI hygiene: D
how networks compare →
36.2%
of checked blocks have valid RPKI ROA coverage
(21 of 58)
Possible discrepancies (3)
These blocks are registered to NBCUNIVERSAL INTERNATIONAL LIMITED 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.
| 50.207.32.0/21 /21 | authorized for AS7922 — Comcast Cable Communications, LLC |
| 209.23.192.0/22 /22 | authorized for AS7922 — Comcast Cable Communications, LLC |
| 50.234.250.0/24 /24 | authorized for AS22694 — Versant Media Group, Inc. |
NIC Handles
AS17035
AS17060
AS19231
AS54040
C09796657
INFOS6-ARIN
NBCUA-ARIN
NBCUN-3
NBCUN-5
NBCUO-ARIN
NBCUT-ARIN