BGP Announced
| AS | CIDR | Description |
|---|---|---|
| AS40831 | 155.52.0.0/17 | PHS - Mass General Brigham Incorporated, US |
| AS40831 | 155.52.0.0/16 | PHS - Mass General Brigham Incorporated, US |
Real Time BGP Data
| AS / Info | IP / Time | AS Path |
|---|---|---|
| Loading... | ||
Reverse DNS List (Total:171)
| IP | Host | DateTime |
|---|---|---|
| 155.52.21.0 | w0043404.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.4 | dfci-gridbook.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.8 | w0043427.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.9 | 701039.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.11 | w0043779.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.12 | w0048236.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.13 | 75988.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.15 | w0111053.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.16 | npi971810.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.17 | w0040246.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.19 | w0103121.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.20 | w0043181.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.21 | npi5a4996.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.22 | w0100016.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.23 | w0041149.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.25 | w0042119.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.27 | w0109478.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.28 | npi371299.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.30 | csc014423-0.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.31 | csc014021-0.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.34 | 76490.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.35 | w0114280.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.36 | w0043555.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.37 | 74481.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.39 | w0100436.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.40 | w0043772.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.41 | ikon_cpp_500.dfci.harvard.edu server-v177bsgk.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.43 | 77767.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.44 | ap001b.d482.f96c.dfci.harvard.edu dshields3s1ap1.partners.org | 2025-12-02 00:00:42 |
| 155.52.21.45 | w0100608.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.48 | w0104903.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.49 | npi8ed03d.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.50 | w0041054.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.51 | w0040372.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.53 | w0105015.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.54 | w0048164.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.55 | npi9dd1cc.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.56 | npi90b053.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.59 | w0106992.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.60 | w000141647w.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.63 | w0043853.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.65 | w0041301.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.66 | pcp158136pcs.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.67 | w0043587.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.68 | w0048656.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.69 | w0103049.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.70 | npi039052.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.74 | w0042154.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.75 | w0041112.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.77 | w0108319.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.78 | w0105537.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.79 | w0109353.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.80 | npide43bd.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.82 | w0110131.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.83 | npi575dd1.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.84 | w0040489.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.87 | p74424.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.90 | npibd1cab.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.91 | npiae1f197.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.92 | csc74360.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.93 | w0112770.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.95 | w0043300.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.96 | w0048009.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.98 | w0041310.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.99 | cpq52701835959.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.100 | w0048711.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.101 | w0048209.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.102 | w0041150.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.104 | dhcp-155-52-21-104.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.107 | w0048151.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.109 | w0060605.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.110 | w0060205w.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.111 | w0042219.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.114 | w0040805.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.116 | w0105938.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.118 | w0108866.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.119 | w0041205.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.120 | w0060204w.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.121 | w0048093.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.123 | 77752.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.125 | w0041189.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.126 | prp002285prs.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.128 | w0041586.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.129 | w0043603.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.130 | npi2d19d5.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.131 | w0040683.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.132 | 155-155052021132.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.133 | w0041452.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.134 | w0108317.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.136 | w0116667.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.138 | npi4753e8.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.139 | w0100017.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.140 | w0123783.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.141 | w0041659.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.142 | w0121894.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.143 | 74400.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.144 | w0040208.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.145 | csc012112-0.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.148 | w0042217.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.149 | w0042066.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.152 | npi0db8da.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.153 | crosby2.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.154 | w0040837.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.156 | csc-79030.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.158 | 75398.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.159 | w0042273.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.161 | npid8f992.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.163 | 76460.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.164 | w0048061.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.166 | w0041526.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.167 | danafarberrouter.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.168 | w0109044.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.171 | w0041757.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.172 | commend-ioip.dfci.harvard.edu dfciintercom6.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.173 | hp17506297341.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.174 | w0040414.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.175 | w0100345.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.178 | w0043898.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.179 | w0120956.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.180 | w0041151.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.181 | w0040512.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.182 | npi535ea6.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.183 | w0048180.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.184 | w0040403.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.185 | w0118200.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.187 | w0113791.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.188 | csc013998-0.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.190 | w0041354.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.192 | w0060286.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.194 | 78440.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.195 | w0041438.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.196 | w0114009.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.198 | ibm-719ea0d0e12.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.201 | w0040816.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.203 | w0042358.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.204 | w0120957.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.205 | w0042047.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.207 | w0040237.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.208 | w0041076.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.209 | w0107382.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.210 | w0040716.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.214 | w0043154.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.218 | w0040511.dfci.harvard.edu npi20c785.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.219 | w0112123.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.221 | csc74361.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.222 | w0116977.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.223 | npidbf80e.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.224 | w0040273.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.226 | w0041591.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.227 | w0066603.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.228 | 701714.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.229 | w0043557.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.231 | otp002286ots.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.232 | w0043912.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.234 | w0041529.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.235 | w0114788.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.236 | w0106795.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.237 | w0109732.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.240 | w0109351.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.243 | csc-79029.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.244 | w0048662.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.245 | w0043223.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.246 | 77705.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.247 | w0043613.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.248 | w0043897.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.249 | w0114027.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.250 | w0111541.dfci.harvard.edu | 2025-11-27 02:31:22 |
| 155.52.21.251 | w0108300.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.252 | w0040600.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.253 | dsmith2s1ups1.dfci.harvard.edu | 2025-12-02 00:00:42 |
| 155.52.21.254 | 77720.dfci.harvard.edu | 2025-12-02 00:00:42 |
Top 20 countries in total ASN
| Country | Allocated ASNs | ASN IPv4 Number | ASN IPv6 Number(/64) |
|---|---|---|---|
United States
|
31439 | 1453713089 | 1154167730180990520 |
Brazil
|
9077 | 83102992 | 4534433838862594 |
China
|
6574 | 349994400 | 147684326264672 |
India
|
6096 | 35969536 | 24475477811200 |
Russian Federation
|
5733 | 46914896 | 14011734667592 |
Indonesia
|
3739 | 17936384 | 1216879689728 |
Germany
|
3151 | 113475880 | 71147070423040 |
United Kingdom
|
3134 | 74367648 | 30254191804416 |
Australia
|
3062 | 40513820 | 20476301088256 |
Poland
|
2451 | 19322368 | 14334258254848 |
Canada
|
2434 | 54884872 | 4291018752256 |
France
|
2157 | 75473474 | 12658723653632 |
Ukraine
|
2003 | 8220416 | 4870096617472 |
Bangladesh
|
1928 | 1967872 | 1029648285696 |
Netherlands
|
1595 | 51737808 | 21097410332160 |
Argentina
|
1321 | 19806720 | 2305861906335858688 |
Hong Kong
|
1298 | 18578012 | 4533315371776 |
Italy
|
1296 | 53427968 | 29050952024064 |
Japan
|
1270 | 160875112 | 33591289511936 |
Republic of Korea
|
1172 | 113030224 | 17725565173760 |