ＮＴＴ株式会社
NTT Communications Corporation
Data as of 2026-08-16
GLEIF verified
Complete entity footprint
9 linked clusters ·
5,486 netblocks ·
44,230,409 IPv4 addresses ·
463 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.
LEI
353800VHQU5VIXVUA841
Registered name
ＮＴＴ株式会社
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 118 · 32,884 IPv4 addresses |
| IPv6 | 4 prefixes (largest 2401:4640::/32) |
| Registered in | Japan (62) · China (15) · Netherlands (10) · Germany (7) · United Kingdom (5) · Hong Kong (4) |
| All fragments | 134 blocks across 2 clusters |
| Cluster ID | 222312128 |
| Registry | APNIC |
| Owner jurisdiction | JP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 353800VHQU5VIXVUA841 |
| Shared handles | clustered on 100 shared RIR contact/maintainer handles |
| Registry names | 13 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
8 weekly snapshots · JSON
120
+11 netblocks since 2026-07-05
2026-07-05
peak 120
2026-08-16
IP Ranges (118)
showing 50 of 118 — see all — ⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 31.193.240.0/22 | NTT Communications Corporation | RIPE | SUB-ALLOCATED PA | ● high |
| 31.193.244.0/22 | NTT Communications Corporation | RIPE | SUB-ALLOCATED PA | ● high |
| 31.222.208.0/22 | NTT Communications Corporation | RIPE | ASSIGNED PA | ● high |
| 31.222.212.0/22 | NTT Communications Corporation | RIPE | ASSIGNED PA | ● high |
| 46.243.170.0/24 | LLC NTT | BGP | ANNOUNCED | ● high |
| 50.20.224.0/21 | NTT Communications Corporation | RIPE | SUB-ALLOCATED PA | ● high |
| 114.255.57.96/27 | NTT-CO | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 114.255.168.64/28 | NTT-CO | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 114.255.231.240/28 | NTT-CO | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 116.228.20.52/30 | NTT-CO | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 116.228.201.12/30 | NTT-CO | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 125.35.16.192/27 | NTT-CO | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 125.35.16.224/27 | NTT-CO | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 168.199.236.0/22 | NTT Communications Corporation | RIPE | SUB-ALLOCATED PA | ● high |
| 168.199.248.0/22 | NTT Communications Corporation | RIPE | ASSIGNED PA | ● high |
| 170.62.112.0/22 | NTT Communications Corporation | RIPE | ASSIGNED PA | ● high |
| 170.62.116.0/22 | NTT Communications Corporation | RIPE | ASSIGNED PA | ● high |
| 178.170.252.0/24 | LLC NTT | BGP | ANNOUNCED | ● high |
| 180.168.29.168/29 | NTT | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 195.180.156.0/22 | NTT Communications Corporation | RIPE | SUB-ALLOCATED PA | ● high |
| 202.108.94.216/29 | NTT-CO | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 202.108.188.0/29 | NTT-CO | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 202.178.96.0/20 | NTT Communications Corporation | BGP | ANNOUNCED | ● high |
| 202.178.96.0/21 | NTT Communications Corporation | BGP | ANNOUNCED | ● high |
| 202.178.104.0/22 | NTT Communications Corporation | BGP | ANNOUNCED | ● high |
| 202.178.104.0/24 | NTT Communications Corporation | BGP | ANNOUNCED | ● high |
| 202.178.106.0/23 | NTT Communications Corporation | BGP | ANNOUNCED | ● high |
| 202.178.108.0/22 | NTT Communications Corporation | BGP | ANNOUNCED | ● high |
| 203.221.1.56/29 | NTT | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 212.69.88.0/22 | NTT Communications Corporation | RIPE | SUB-ALLOCATED PA | ● high |
| 2001:218:2200::/40 | NTT Communications Corporation | BGP | ANNOUNCED | ● high |
| 2401:4640::/32 | NTT Communications Corporation | BGP | ANNOUNCED | ● high |
| 2.27.82.0/24 | NTT-Communications-Corporation | RIPE | SUB-ALLOCATED PA | ● low |
| 14.137.240.0/24 | NTT-Communications-Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 43.231.189.0/24 | NTT_Communications_Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 43.231.190.0/24 | NTT_Communications_Corporation | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 43.231.191.0/24 | NTT_Communications_Corporation | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 43.250.91.0/24 | NTT_Communications_Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 43.251.184.0/24 | NTT_Communications_Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 43.251.185.0/24 | NTT_Communications_Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 43.251.186.0/24 | NTT_Communications_Corporation | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 45.124.61.0/24 | NTT_Communications_Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 49.0.176.0/24 | NTT_Communications_Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 49.0.177.0/24 | NTT_Communications_Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 49.0.178.0/24 | NTT_Communications_Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 49.0.179.0/24 | NTT_Communications_Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 49.0.180.0/24 | NTT_Communications_Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 49.0.181.0/24 | NTT_Communications_Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 49.0.182.0/24 | NTT_Communications_Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 49.0.183.0/24 | NTT_Communications_Corporation | APNIC | ALLOCATED NON-PORTABLE | ● low |
IPv6 ranges (4)
Corporate group (9 confirmed entities)
+907 additional unconfirmed candidates not shown — full list (JSON)- Dimension Data 2,070 blocks
- NTT America, Inc. 1,831 blocks
- NTT DOCOMO, INC. 1,298 blocks
- NTT DOCOMO BUSINESS, Inc. 219 blocks
- NTT DATA CORPORATION 59 blocks
- NTT MSC Sdn Bhd 49 blocks
- itelligence AG 42 blocks
- NTT DATA Services Holdings Corporation 35 blocks
Network trust
what's this?
RPKI hygiene: A
how networks compare →
95.8%
of checked blocks have valid RPKI ROA coverage
(115 of 120)
Possible discrepancies (18)
These blocks are registered to NTT Communications Corporation but cryptographically authorized for a different, unrelated network (5 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 206.109.68.0/23 /23 | authorized for AS149513 — Vertex Connectivity LLC |
| 2.27.82.0/24 /24 | authorized for AS41171 — DIGITAL NETWORK S.R.L. |
| 103.10.37.0/24 /24 | authorized for AS23532 — IOVZ NETWORKS INC |
| 43.250.91.0/24 /24 | authorized for AS5065 — Bunny Communications |
| 103.6.23.0/24 /24 | authorized for AS23532 — IOVZ NETWORKS INC |
| 43.251.184.0/24 /24 | authorized for AS5065 — Bunny Communications |
| 43.251.186.0/24 /24 | authorized for AS5065 — Bunny Communications |
| 43.251.185.0/24 /24 | authorized for AS23532 — IOVZ NETWORKS INC |
| 103.23.72.0/24 /24 | authorized for AS23532 — IOVZ NETWORKS INC |
| 103.23.73.0/24 /24 | authorized for AS23532 — IOVZ NETWORKS INC |
| 103.23.74.0/24 /24 | authorized for AS23532 — IOVZ NETWORKS INC |
| 103.23.75.0/24 /24 | authorized for AS23532 — IOVZ NETWORKS INC |
| 43.231.189.0/24 /24 | authorized for AS23532 — IOVZ NETWORKS INC |
| 45.124.61.0/24 /24 | authorized for AS23532 — IOVZ NETWORKS INC |
| 103.141.224.0/24 /24 | authorized for AS148996 — GLOBAL COMMUNICATION NETWORK LIMITED |
+3 more — see the REST API
NIC Handles
AD1155-AP
AF599-AP
AG191-AP
AG191-AP
AH915-AP
AN880-AP
AN941-AP
AO253-AP
AR834
AS18259
AS3552-AP
AS3815-AP
+88 more