Autonomous System details

AS15751

Eircom Limited  ·  eir.ie

Ireland

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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 3 months ago on Jan 09, 2026

IP Ranges

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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WHOIS Details

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                                                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.

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

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Peers

There is 1 peer for this ASN.

Peers Name
AS5466 Eircom Limited
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ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams Name
AS5466 Eircom Limited
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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
2a01:b340:65:a2c6:bc93:69ff:fe5f:ff7d AS15751 Eircom Limited 17.46ms from Dublin, IE
2a01:b340:84:ce1e:97dc:986b:7927:308f AS15751 Eircom Limited 264.11ms from Dublin, IE
2a01:b340:63:faa2:facc:94f0:3b80:375f AS15751 Eircom Limited 19.76ms from Dublin, IE
2a01:b340:64:9dbf:f1f3:a7a4:a370:3db1 AS15751 Eircom Limited 8.22ms from Dublin, IE
2a01:b340:60:a250:883e:7cff:fe14:6a50 AS15751 Eircom Limited 18.17ms from Dublin, IE
2a01:b340:83:c319:f42d:bf58:c3b1:cc53 AS15751 Eircom Limited 17.21ms from Dublin, IE
2a01:b340:f:9::1 AS15751 Eircom Limited 0.77ms from Dublin, IE
2a01:b340:61:99c6:5ae0:1655:6a2a:b24a AS15751 Eircom Limited 13.77ms from Dublin, IE
212.129.67.124 AS15751 Eircom Limited 0.77ms from Dublin, IE
2a01:b340:80:2d18:7e69:7b5e:fc4c:eac9 AS15751 Eircom Limited 17.67ms from Dublin, IE
2a01:b340:82:b9e6:6db9:e562:73b3:ceda AS15751 Eircom Limited 11.84ms from Dublin, IE
2a01:b340:81:8294:9618:777e:df74:3f5c AS15751 Eircom Limited 7.91ms from Dublin, IE
2a01:b340:87:78e8:ecb0:8ff:fe02:5937 AS15751 Eircom Limited 16.91ms from Dublin, IE
2a01:b340:86:3b8c:6a2a:3f8e:2978:ff5a AS15751 Eircom Limited 12.78ms from Dublin, IE
212.129.64.72 AS15751 Eircom Limited 0.83ms 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
77.61.48.135 AS1136 KPN B.V. 0.50ms from Amsterdam, NL
163.240.120.183 AS668 United States Department of Defense (DoD) 0.66ms from Atlanta, US
24.162.100.135 AS11427 Charter Communications Inc 5.33ms from Dallas, US
152.65.191.183 AS46792 Paragould Municipal Utilities 11.61ms from Dallas, US
164.100.229.103 AS4758 National Informatics Centre 0.91ms from Delhi, IN
154.221.121.55 AS17561 LARUS Limited 0.75ms from Hong Kong, HK
84.120.20.167 AS6739 Vodafone ONO AS 10.00ms from Madrid, ES
132.206.11.7 AS15318 McGill University 1.65ms from Montreal, CA
24.164.174.119 AS12271 Charter Communications Inc 1.84ms from New York City, US
198.13.136.199 AS20326 TeraSwitch Networks Inc. 0.74ms from New York City, US
153.183.150.215 AS4713 NTT DOCOMO BUSINESS,Inc. 6.22ms from Osaka, JP
182.34.172.183 AS4134 CHINANET-BACKBONE 5.66ms from Qingdao, CN
45.198.97.71 AS214143 SKYDIGITAL TELECOM LTD 0.37ms from Taipei, TW
175.146.252.183 AS4837 CHINA UNICOM China169 Backbone 5.53ms from Tieling, CN
126.16.148.71 AS17676 SoftBank Corp. 9.01ms from Tokyo, JP
174.5.48.199 AS6327 Shaw Communications 7.12ms from Winnipeg, CA
73.87.28.183 AS7922 Comcast Cable Communications, LLC 5.16ms from Ashburn, US
72.63.29.7 AS6079 RCN 0.20ms from Boston, US
5.226.150.135 AS58299 Openfactory GmbH 0.10ms from Düsseldorf, DE
109.48.247.247 AS2860 NOS COMUNICACOES, S.A. 7.76ms from Lisbon, PT
73.28.93.167 AS7922 Comcast Cable Communications, LLC 6.87ms from Miami, US
117.43.169.167 AS4134 CHINANET-BACKBONE 1.03ms from Nanchang, CN
185.36.240.55 AS62225 Viken Fiber AS 3.03ms from Oslo, NO
78.192.78.23 AS12322 Free SAS 1.31ms from Paris, FR
83.205.202.231 AS3215 Orange S.A. 10.68ms from Paris, FR

Traceroute

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

$
traceroute -a -n -q1 -f4 -m15 109.125.17.99
traceroute to 109.125.17.99 (109.125.17.99): 15 hops max, 52 byte packets
5 *
6 *
7 *
8 [AS1299] 62.115.120.11 41.148 ms
9 [AS1299] 62.115.32.201 39.37 ms
10 *
11 *
12 [AS5466] 83.174.184.13 39.076 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Bologna, IT
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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