AS275 NTT America, Inc.

NTTA-275 - NTT America, Inc. · registered in the United States

IPv4 addresses1,0905 prefixes · <0.001% of announced IPv4

Rank in United States#7,752largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#29,671of 79,396 networks with IPv4

IPv61 x /485 prefixes

CountryUnited States18,679 ASNs registered there

Open AS275 in ASN lookup Look up an IP in this network (5.158.213.65) All networks in United States

IPv4 prefixes

All 5 prefixes, in address order.

5.158.213.64/31
129.250.35.16/28
185.84.19.224/27
204.141.84.0/22
213.130.47.16/28

IPv6 prefixes

All 5 prefixes.

2001:418:1401:ae::/64
2001:418:144d::/48
2001:728:0:5000::1532/127
2001:728:0:7000::/64
2001:728:401:21::/64

Other ASNs named NTT America, Inc.

10 other networks use the same organisation name; together with AS275 they announce 4,855,970 IPv4 addresses.

ASNNameIPv4 addresses

AS2914NTT-DATA-2914 - NTT America, Inc. US4,832,292

AS3949NTTA-3946 - NTT America, Inc. US11,516

AS11158NETDEPON - NTT America, Inc. US7,680

AS1225NTTA-1225 - NTT America, Inc. US1,280

AS3938NTTA-3936 - NTT America, Inc. US1,024

AS97NTTA-97 - NTT America, Inc. US512

AS7019NTTA-7019 - NTT America, Inc. US288

AS93NTTA-93 - NTT America, Inc. US256

AS3939NTTA-3936 - NTT America, Inc. US32

AS262VERIO - NTT America, Inc. USIPv6 only

Similar-sized networks in United States

ASNNameIPv4 addresses

AS403003#7749 FIBERNET-COMMUNICATIONS-16 - FiberNet1,280

AS394435#7750 ACLIBRARY - Alameda County Library1,126

AS394230#7751 CDCK - Civilized Discourse Construction Kit, Inc.1,120

AS22871#7753 HHSF-IN - Heartland Rural Electric Membership Corporation1,088

AS1412#7754 GRVYUS-PIT-A - Gravity Interactive, Inc.1,056

AS32361#7755 ULTRALIGHT - UltraLight1,026

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources