What is ASN AS140577?

ASN AS140577 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS140577?

AS140577 is listed under Ahrefs Pte Ltd.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS140577 Ahrefs Pte Ltd | IPGeolocation.io

ASN Lookup Tool

Ahrefs Pte Ltd ahrefs.com

SG 22 Routes

AS Data

AS140577

AS140577 – Ahrefs Pte Ltd

AS Number	140577
AS Name	AHREFS-AS-AP
Organization	Ahrefs Pte Ltd (org-apl63-ap)
Country	SG
Website	ahrefs.com
Number of IPv4 Routes	12
Number of IPv6 Routes	10
ASN type	BUSINESS
Registry	APNIC
Date Allocated	2020-04-16

ASN Intelligence API for production workflows

Use ASN data for AS140577 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
168.100.136.0/22	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	1024
2401:59a0:2::/48	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	~1×10²⁴
168.100.148.0/24	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	256
2401:59a0:4::/48	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	~1×10²⁴
2401:59a0:8::/46	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	~5×10²⁴
202.8.40.0/22	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	1024
2001:df3:7c80::/48	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	~1×10²⁴
103.150.140.0/23	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	512
168.100.146.0/23	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	512
2401:59a0::/48	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	~1×10²⁴
61.16.24.0/22	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	1024
2401:59a0:3::/48	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	~1×10²⁴
2401:59a0:c::/46	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	~5×10²⁴
2401:59a0::/32	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	~79×10²⁷
168.100.144.0/20	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	4096
202.94.84.0/23	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	512
168.100.140.0/22	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	1024
2401:59a0:5::/48	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	~1×10²⁴
168.100.128.0/21	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	2048
202.8.40.0/23	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	512
202.8.42.0/23	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	512
2401:59a0:1::/48	AS140577	Ahrefs Pte Ltd	Ahrefs Pte Ltd	~1×10²⁴

Raw Whois Response

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS139578 - AS140601'

as-block:       AS139578 - AS140601
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2019-06-13T01:03:23Z
source:         APNIC

role:           APNIC Hostmaster
address:        PO Box 3646
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2026-08-26T00:40:00Z
source:         APNIC

% Information related to 'AS140577'

% Abuse contact for 'AS140577' is 'network-abuse@ahrefs.com'

aut-num:        AS140577
as-name:        AHREFS-AS-AP
descr:          Ahrefs Pte Ltd
country:        SG
import:         from AS174 accept ANY
import:         from AS6939 accept ANY
import:         from AS6453  accept ANY
import:         from AS24115 accept ANY
import:         from AS6461 accept ANY
export:         to AS174 announce AS140577
export:         to AS6939 announce RS-AHREFS-SG
export:         to AS6453 announce RS-AHREFS-SG
export:         to AS24115  announce RS-AHREFS-SG
export:         to AS6461 announce RS-AHREFS-US
org:            ORG-APL63-AP
admin-c:        APLA38-AP
tech-c:         APLA38-AP
abuse-c:        AA1705-AP
mnt-lower:      MAINT-AHREFS-SG
mnt-routes:     MAINT-AHREFS-SG
mnt-by:         APNIC-HM
mnt-irt:        IRT-AHREFS-SG
last-modified:  2023-07-24T09:58:06Z
source:         APNIC

irt:            IRT-AHREFS-SG
address:        Marina One East Tower,, 7 Straits View,
e-mail:         network-abuse@ahrefs.com
abuse-mailbox:  network-abuse@ahrefs.com
admin-c:        APLA38-AP
tech-c:         APLA38-AP
auth:           # Filtered
remarks:        network-abuse@ahrefs.com was validated on 2026-08-07
mnt-by:         MAINT-AHREFS-SG
last-modified:  2026-08-07T12:19:08Z
source:         APNIC

organisation:   ORG-APL63-AP
org-name:       Ahrefs Pte Ltd
org-type:       LIR
country:        SG
address:        Marina One East Tower,
address:        7 Straits View, # 08-02
phone:          +6585915924
e-mail:         network-team@ahrefs.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:11Z
source:         APNIC

role:           ABUSE AHREFSSG
country:        ZZ
address:        Marina One East Tower,, 7 Straits View,
phone:          +000000000
e-mail:         network-abuse@ahrefs.com
admin-c:        APLA38-AP
tech-c:         APLA38-AP
nic-hdl:        AA1705-AP
remarks:        Generated from irt object IRT-AHREFS-SG
remarks:        network-abuse@ahrefs.com was validated on 2026-08-07
abuse-mailbox:  network-abuse@ahrefs.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-08-07T12:19:48Z
source:         APNIC

role:           Ahrefs Pte Ltd administrator
address:        Marina One East Tower,, 7 Straits View, #08-02, Singapore Singapore 018936
country:        SG
phone:          +6585915924
e-mail:         network-abuse@ahrefs.com
admin-c:        APLA38-AP
tech-c:         APLA38-AP
nic-hdl:        APLA38-AP
mnt-by:         MAINT-AHREFS-SG
last-modified:  2020-04-16T04:37:46Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS139578 - AS140601",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "HM20-AP" ],
    "tech_contacts" : [ "HM20-AP" ],
    "remarks" : [ "These AS numbers are further assigned by APNIC", "to APNIC members and end-users in the APNIC region" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "APNIC-HM" ],
    "date_updated" : "2019-06-13",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS140577",
    "as_name" : "AHREFS-AS-AP",
    "description" : [ "Ahrefs Pte Ltd" ],
    "country" : "SG",
    "import" : [ "from AS174 accept ANY", "from AS6939 accept ANY", "from AS6453  accept ANY", "from AS24115 accept ANY", "from AS6461 accept ANY" ],
    "export" : [ "to AS174 announce AS140577", "to AS6939 announce RS-AHREFS-SG", "to AS6453 announce RS-AHREFS-SG", "to AS24115  announce RS-AHREFS-SG", "to AS6461 announce RS-AHREFS-US" ],
    "organization" : "ORG-APL63-AP",
    "admin_contacts" : [ "APLA38-AP" ],
    "tech_contacts" : [ "APLA38-AP" ],
    "abuse_contacts" : [ "AA1705-AP" ],
    "mnt_irt" : [ "IRT-AHREFS-SG" ],
    "mnt_lower" : [ "MAINT-AHREFS-SG" ],
    "mnt_routes" : [ "MAINT-AHREFS-SG" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-07-24",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-AHREFS-SG",
    "address" : [ "Marina One East Tower,, 7 Straits View," ],
    "street" : "Straits View",
    "email" : [ "network-abuse@ahrefs.com" ],
    "abuse_mailbox" : [ "network-abuse@ahrefs.com" ],
    "admin_contacts" : [ "APLA38-AP" ],
    "tech_contacts" : [ "APLA38-AP" ],
    "remarks" : [ "network-abuse@ahrefs.com was validated on 2026-08-07" ],
    "mnt_by" : [ "MAINT-AHREFS-SG" ],
    "date_updated" : "2026-08-07",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-APL63-AP",
    "name" : "Ahrefs Pte Ltd",
    "type" : "LIR",
    "address" : [ "Marina One East Tower,", "7 Straits View, # 08-02" ],
    "street" : "Straits View",
    "country" : [ "SG" ],
    "email" : [ "network-team@ahrefs.com" ],
    "phone" : [ "+6585915924" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-09-05",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "APLA38-AP",
    "name" : "Ahrefs Pte Ltd administrator",
    "address" : [ "Marina One East Tower,, 7 Straits View, #08-02, Singapore Singapore 018936" ],
    "street" : "Straits View #08-02",
    "city" : "Singapore",
    "zip_code" : "018936",
    "country" : "SG",
    "email" : [ "network-abuse@ahrefs.com" ],
    "phone" : [ "+6585915924" ],
    "admin_contacts" : [ "APLA38-AP" ],
    "tech_contacts" : [ "APLA38-AP" ],
    "mnt_by" : [ "MAINT-AHREFS-SG" ],
    "date_updated" : "2020-04-16",
    "source" : "APNIC",
    "addressCountry" : "SINGAPORE"
  } ],
  "technical_contacts" : [ {
    "handle" : "APLA38-AP",
    "name" : "Ahrefs Pte Ltd administrator",
    "address" : [ "Marina One East Tower,, 7 Straits View, #08-02, Singapore Singapore 018936" ],
    "street" : "Straits View #08-02",
    "city" : "Singapore",
    "zip_code" : "018936",
    "country" : "SG",
    "email" : [ "network-abuse@ahrefs.com" ],
    "phone" : [ "+6585915924" ],
    "admin_contacts" : [ "APLA38-AP" ],
    "tech_contacts" : [ "APLA38-AP" ],
    "mnt_by" : [ "MAINT-AHREFS-SG" ],
    "date_updated" : "2020-04-16",
    "source" : "APNIC",
    "addressCountry" : "SINGAPORE"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AA1705-AP",
    "name" : "ABUSE AHREFSSG",
    "address" : [ "Marina One East Tower,, 7 Straits View," ],
    "street" : "Straits View",
    "country" : "ZZ",
    "email" : [ "network-abuse@ahrefs.com" ],
    "abuse_mailbox" : [ "network-abuse@ahrefs.com" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "APLA38-AP" ],
    "tech_contacts" : [ "APLA38-AP" ],
    "remarks" : [ "Generated from irt object IRT-AHREFS-SG", "network-abuse@ahrefs.com was validated on 2026-08-07" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2026-08-07",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS6453	TATA COMMUNICATIONS AMERICA INC	US
AS1239	Cogent Communications, LLC	US
AS6939	Hurricane Electric LLC	US
AS17660	Bhutan Telecom Ltd	BT
AS151326	DCConnect Communication Pte. Ltd.	SG
AS174	Cogent Communications, LLC	US
AS6461	Zayo Bandwidth	US
AS24115	Equinix Asia Pacific Pte Ltd	SG

Upstreams

AS Number	Description	Country
AS6453	TATA COMMUNICATIONS AMERICA INC	US
AS6939	Hurricane Electric LLC	US
AS174	Cogent Communications, LLC	US
AS6461	Zayo Bandwidth	US