ISP Lookup

Identify the Internet Service Provider (ISP), parent organization, Autonomous System Number, and Regional Internet Registry allocation associated with any IPv4 or IPv6 address.

Test Indian & Anycast Providers:

Network Operator & Organization Profile for 122.160.0.1

Bharti Airtel Ltd. (Airtel Xstream Fiber & Mobility)

Registered Autonomous System Organization

Bharti Airtel Limited

Autonomous System Number (ASN)

AS9498

Operator Domain

airtel.in

Allocated CIDR Prefix & RIR

122.160.0.0/16 (APNIC (IRINN))

Network Usage Classification

Fixed Broadband & Enterprise Transit ISP

Country / Telecom Circle

India (IN) · Delhi NCR / Northern Telecom Circle

Source: Authoritative RIR RDAP (APNIC / ARIN) + IPinfo Lite Baseline · Checked at 2026-11-01T16:55:09.145Z

Note: An ISP or organization record identifies the entity that holds the IP block allocation or announces the route—it does not identify an individual retail subscriber plan or private household account.

How ISP, Organization, and ASN Fields Differ

Network intelligence reports often surface three related but distinct labels for an IP address: the ISP (the access network delivering connectivity), the Registered Organization (the legal entity holding the netblock allocation in APNIC/IRINN), and the Autonomous System (ASN) (the routing domain announcing the prefix over BGP).

In India, regional broadband operators (LCOs or regional fiber providers) frequently lease upstream IP transit or IPv4 blocks from larger Tier-1 transit carriers such as Tata Communications (AS4755) or Bharti Airtel (AS9498). When that happens, an ISP lookup may display the upstream transit provider or the parent corporate entity rather than the local retail brand name printed on your broadband bill.

Mobile Carrier & Cloud Hosting Caveats

Mobile CGNAT gateways: 4G and 5G subscribers share public IPv4 addresses across regional packet gateways (PGWs), so thousands of users appear under the same provider netblock simultaneously.
Cloud & CDN endpoints: Looking up a website's IP often shows Cloudflare, Akamai, AWS, or Google Cloud rather than the company that owns the website.

Technical Specifications & Protocol Facts

Authoritative parameters, dimensions, and IETF RFC compliance

Parameter / Dimension	Technical Specification	Standard / Authority
Lookup Target	Any globally routable IPv4 or IPv6 address	RFC 791 / RFC 8200
Returned Provider Metadata	ISP commercial name, operating organization, origin ASN, and RIR handle	RDAP / IP Intelligence
Allocation vs Announcement	Distinguishes RIR registered netblock holder from active BGP origin ASN	RFC 7483 / BGP-4
Special-Scope Filtering	Automatically flags RFC 1918, RFC 6598 CGNAT, and loopback inputs	RFC 6890

Frequently Asked Questions

Concise answers verified against IANA, APNIC, and IETF protocol standards

Why can the ISP name differ from the Organization name in an IP lookup?

A parent telecom company or cloud provider may hold the master IP block in APNIC/ARIN while leasing or announcing a sub-allocation through a regional subsidiary or customer ASN.

Can an ISP Lookup identify whether an IP belongs to a mobile carrier or cloud host?

Yes. By inspecting the ISP name, Autonomous System Number (ASN), and RIR allocation remarks, you can see whether the IP is operated by a residential broadband ISP, 4G/5G carrier, or data center.

How do I report network abuse or spam originating from an ISP IP address?

Use the ISP Lookup or IP WHOIS / RDAP Lookup tool to find the official abuse contact email and RIR handle registered by the network operator.

Contextual utilities and reference documentation verified for this workflow

Diagnostic & Calculation Utilities

Technical Reference Guides

ISP Lookup · Canonical: https://ipaddresslookup.in/isp-lookup · Reviewed: 2026-11-01

Reviewer: IPAddressLookup.in Technical Network Utility Group · Stateless Privacy · Accuracy & Data Limits