Autonomous System details

AS15751

Eircom Limited  ·  eir.ie

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AS15751 – Eircom Limited

Field Value
Country Ireland
Website eir.ie
Hosted domains 2
IPv4 addresses 24,832
IPv6 addresses 633,825,300,114,114,700,000,000,000,000
ASN type ISP
Registry ripe
Allocated 56 years ago on Jan 01, 1970
Updated 4 months ago on Jan 09, 2026
Netblock Company Num of IPs
109.125.0.0/18 Eircom Limited 16,384
212.129.80.0/20 eir Mobile Broadband 4,096
212.129.72.0/21 eir Mobile Broadband 2,048
212.129.68.0/22 eir Mobile Broadband 1,024
185.51.72.0/23 eir Mobile Communications IP Network 512
212.129.66.0/23 eir Mobile Communications IP Network 512
212.129.64.0/24 eir Mobile Communications IP Network 256
Netblock Company
2a01:b340::/29 Eircom Limited
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IP Ranges API

WHOIS Details


                                                ASHandle:       AS15751
                                                OrgID:          AS15751
                                                ASName:         AS15751
                                                ASNumber:       AS15751
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There are 2 domain names hosted across 1 IP address on this ASN.

IP Address Domain Domains on this IP
212.129.78.227 █████████ 2

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Useful for Cybersecurity

Peers

There is 1 peer for this ASN.

Peers Name
AS5466 Eircom Limited
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Upstreams

There is 1 peer for this ASN.

upstreams Name
AS5466 Eircom Limited
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

8 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
212.129.67.124 AS15751 Eircom Limited 0.78ms from Dublin, IE
2a01:b340:61:8bd:60cb:1630:4410:dd47 AS15751 Eircom Limited 23.55ms from Dublin, IE
2a01:b340:f:9::1 AS15751 Eircom Limited 0.79ms from Dublin, IE
2a01:b340:83:2a95:770b:a7ab:d965:ba86 AS15751 Eircom Limited 13.15ms from Dublin, IE
2a01:b340:60:8942:baec:466:e71d:b383 AS15751 Eircom Limited 16.21ms from Dublin, IE
212.129.64.189 AS15751 Eircom Limited 0.76ms from Dublin, IE
2a01:b340:65:6325:9725:39a3:cc03:f31e AS15751 Eircom Limited 35.73ms from Dublin, IE
2a01:b340:63:6989:dc7b:fff:fe4a:f719 AS15751 Eircom Limited 16.80ms from Dublin, IE

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
81.165.186.199 AS6848 Telenet BV 9.89ms from Amsterdam, NL
172.72.218.199 AS11426 Charter Communications Inc 10.19ms from Atlanta, US
181.1.211.103 AS7303 Telecom Argentina S.A. 1.44ms from Cordoba, AR
75.161.90.215 AS209 CenturyLink Communications, LLC 9.84ms from Denver, US
3.66.151.71 AS16509 Amazon.com, Inc. 0.45ms from Frankfurt am Main, DE
121.200.21.39 AS4764 Aussie Broadband 0.82ms from Melbourne, AU
5.193.43.215 AS5384 Emirates Internet 3.21ms from Al Fujairah City, AE
180.180.118.183 AS23969 TOT Public Company Limited 3.01ms from Bangkok, TH
5.22.187.7 AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o. 0.34ms from Belgrade, RS
46.223.114.103 AS3209 Vodafone GmbH 10.38ms from Frankfurt am Main, DE
141.101.35.199 AS47215 dogado GmbH 0.67ms from Frankfurt am Main, DE
91.62.140.23 AS3320 Deutsche Telekom AG 1.20ms from Nuernberg, DE
58.188.142.103 AS17511 OPTAGE Inc. 2.33ms from Osaka, JP
46.255.164.151 AS34177 CELESTE SAS 0.67ms from Paris, FR
128.90.249.119 AS40861 Paradise Networks LLC 0.88ms from Santa Clara, US
104.41.32.119 AS8075 Microsoft Corporation 0.16ms from Sao Paulo, BR
51.20.27.103 AS16509 Amazon.com, Inc. 0.14ms from Stockholm, SE
58.49.62.87 AS4134 CHINANET BACKBONE 1.31ms from Wuhan, CN
125.42.200.39 AS4837 CHINA UNICOM China169 Backbone 8.28ms from Zhengzhou, CN
143.55.231.247 AS396479 Mailgun Technologies Inc. 0.84ms from Ashburn, US
107.211.216.247 AS7018 AT&T Enterprises, LLC 12.43ms from Atlanta, US
182.18.89.7 AS141771 China Telecom 3.12ms from Beijing, CN
88.75.216.247 AS3209 Vodafone GmbH 15.09ms from Berlin, DE
98.130.34.199 AS16509 Amazon.com, Inc. 1.32ms from Hyderabad, IN
68.8.81.39 AS22773 Cox Communications Inc. 8.33ms from Los Angeles, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f2 -m18 109.125.35.192
traceroute to 109.125.35.192 (109.125.35.192): 18 hops max, 52 byte packets
2 [AS9658] 120.89.51.3 0.046 ms
4 [AS9658] 120.89.1.165 0.737 ms
5 [AS9658] 120.89.24.230 149.345 ms
6 [AS174] 38.142.34.25 157.192 ms
7 [AS174] 154.54.42.101 169.677 ms
8 [AS174] 154.54.44.85 175.012 ms
9 [AS174] 154.54.166.57 197.824 ms
10 [AS174] 154.54.165.25 189.968 ms
11 [AS174] 154.54.7.234 204.311 ms
12 [AS174] 154.54.165.134 204.421 ms
13 [AS174] 154.54.6.222 256.464 ms
14 [AS174] 154.54.31.226 252.247 ms
15 [AS174] 154.54.41.206 269.659 ms
16 *
17 *
18 *
Measurement taken from IPinfo ProbeNet in Manila, PH
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS15751 at robtex.

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