Guam (GU) - IPv4 address delegations
Data from RIR websites as of: Mon Aug 04 2025
Most IPv4 delegations correspond to a single "/prefix" address range.
Some IPv4 delegations correspond to several consecutive "/prefix" ranges with the same holder, aggregated together in a single delegation (for example a /23 and the following /24 aggregated in a delegation with 768 addresses). In this case, colum "Prefix" in the following table contains the keyword "Aggreg", and the entry in the "IPv4 List" text file appears as "First address-Last address".
| APNIC Delegations |
| Zone |
Country |
Parameter |
First |
Last |
Prefix |
Number |
Date |
Status |
| APNIC |
GU |
IPv4 |
43.240.88.0 |
43.240.91.255 |
/22 |
1 024 |
2014-08-14 |
Allocated |
| APNIC |
GU |
IPv4 |
43.247.60.0 |
43.247.63.255 |
/22 |
1 024 |
2014-07-16 |
Allocated |
| APNIC |
GU |
IPv4 |
49.128.104.0 |
49.128.107.255 |
/22 |
1 024 |
2010-11-10 |
Allocated |
| APNIC |
GU |
IPv4 |
101.99.128.0 |
101.99.255.255 |
/17 |
32 768 |
2011-02-25 |
Allocated |
| APNIC |
GU |
IPv4 |
103.3.240.0 |
103.3.243.255 |
/22 |
1 024 |
2011-05-05 |
Allocated |
| APNIC |
GU |
IPv4 |
103.7.100.0 |
103.7.103.255 |
/22 |
1 024 |
2012-03-21 |
Allocated |
| APNIC |
GU |
IPv4 |
103.17.112.0 |
103.17.115.255 |
/22 |
1 024 |
2013-02-27 |
Allocated |
| APNIC |
GU |
IPv4 |
103.115.192.0 |
103.115.193.255 |
/23 |
512 |
2018-05-21 |
Assigned |
| APNIC |
GU |
IPv4 |
103.142.152.0 |
103.142.153.255 |
/23 |
512 |
2024-05-07 |
Assigned |
| APNIC |
GU |
IPv4 |
103.212.24.0 |
103.212.27.255 |
/22 |
1 024 |
2016-03-23 |
Allocated |
| APNIC |
GU |
IPv4 |
114.142.192.0 |
114.142.223.255 |
/19 |
8 192 |
2008-06-25 |
Allocated |
| APNIC |
GU |
IPv4 |
114.142.224.0 |
114.142.255.255 |
/19 |
8 192 |
2010-05-06 |
Allocated |
| APNIC |
GU |
IPv4 |
116.68.0.0 |
116.68.15.255 |
/20 |
4 096 |
2007-05-04 |
Allocated |
| APNIC |
GU |
IPv4 |
116.68.16.0 |
116.68.31.255 |
/20 |
4 096 |
2010-12-02 |
Allocated |
| APNIC |
GU |
IPv4 |
117.20.120.0 |
117.20.127.255 |
/21 |
2 048 |
2007-06-22 |
Allocated |
| APNIC |
GU |
IPv4 |
121.55.192.0 |
121.55.255.255 |
/18 |
16 384 |
2006-05-26 |
Allocated |
| APNIC |
GU |
IPv4 |
139.5.136.0 |
139.5.139.255 |
/22 |
1 024 |
2016-03-23 |
Allocated |
| APNIC |
GU |
IPv4 |
182.173.192.0 |
182.173.255.255 |
/18 |
16 384 |
2010-04-16 |
Allocated |
| APNIC |
GU |
IPv4 |
202.22.176.0 |
202.22.191.255 |
/20 |
4 096 |
2001-03-23 |
Allocated |
| APNIC |
GU |
IPv4 |
202.47.144.0 |
202.47.159.255 |
/20 |
4 096 |
2004-03-08 |
Allocated |
| APNIC |
GU |
IPv4 |
202.123.128.0 |
202.123.159.255 |
/19 |
8 192 |
2000-08-02 |
Allocated |
| APNIC |
GU |
IPv4 |
202.128.0.0 |
202.128.31.255 |
/19 |
8 192 |
1994-05-12 |
Allocated |
| APNIC |
GU |
IPv4 |
202.128.64.0 |
202.128.95.255 |
/19 |
8 192 |
1999-06-03 |
Allocated |
| APNIC |
GU |
IPv4 |
202.131.160.0 |
202.131.191.255 |
/19 |
8 192 |
2004-06-03 |
Allocated |
| APNIC |
GU |
IPv4 |
202.151.64.0 |
202.151.95.255 |
/19 |
8 192 |
2000-05-02 |
Allocated |
| APNIC |
GU |
IPv4 |
203.95.8.0 |
203.95.15.255 |
/21 |
2 048 |
2005-06-15 |
Allocated |
| APNIC |
GU |
IPv4 |
203.215.52.0 |
203.215.55.255 |
/22 |
1 024 |
2011-04-12 |
Allocated |
| ARIN Delegations |
| Zone |
Country |
Parameter |
First |
Last |
Prefix |
Number |
Date |
Status |
| ARIN |
GU |
IPv4 |
168.123.0.0 |
168.123.255.255 |
/16 |
65 536 |
1994-04-19 |
Allocated |
| ARIN |
GU |
IPv4 |
192.149.202.0 |
192.149.202.255 |
/24 |
256 |
1992-03-17 |
Allocated |
