BGP Announced

AS CIDR Description
AS55 128.91.0.0/16 UPENN - University of Pennsylvania, US

Real Time BGP Data

AS / Info IP / Time AS Path
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Reverse DNS List (Total:229)

IP Host DateTime
128.91.40.1 irb3.drl.router.upenn.edu 2025-06-04 08:21:25
128.91.40.2 zni-21-01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.3 aammarah-21-01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.4 sas-tanna21-wd.math.upenn.edu 2025-06-04 08:21:25
128.91.40.5 clytemnestra.math.upenn.edu 2025-06-04 08:21:25
128.91.40.6 glg-temp-90487.math.upenn.edu 2025-06-04 08:21:25
128.91.40.7 kadison-pc.math.upenn.edu 2025-06-04 08:21:25
128.91.40.8 3w8.math.upenn.edu 2025-06-04 08:21:25
128.91.40.9 4n16b.math.upenn.edu 2025-06-04 08:21:25
128.91.40.10 fermat.math.upenn.edu 2025-05-30 03:01:53
128.91.40.12 math-1n1c.math.upenn.edu 2025-06-04 08:21:25
128.91.40.13 1n1.math.upenn.edu 2025-06-04 08:21:25
128.91.40.14 zytec.math.upenn.edu 2025-06-04 08:21:25
128.91.40.15 math-cgs.math.upenn.edu 2025-06-04 08:21:25
128.91.40.16 dan.math.upenn.edu 2025-06-04 08:21:25
128.91.40.17 128.91.40.17.math.upenn.edu 2025-06-04 08:21:25
128.91.40.18 office-ricoh.math.upenn.edu 2025-06-04 08:21:25
128.91.40.19 sas-airey23-wd.math.upenn.edu 2025-06-04 08:21:25
128.91.40.20 pomona.math.upenn.edu 2025-06-04 08:21:25
128.91.40.21 drl3n5startechadapter.math.upenn.edu 2025-06-04 08:21:25
128.91.40.22 akwon-21-01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.23 casa.math.upenn.edu 2025-06-04 08:21:25
128.91.40.24 jtrumbo01.sas.upenn.edu 2025-06-04 08:21:25
128.91.40.25 dharbater01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.26 4c3pc.math.upenn.edu 2025-06-04 08:21:25
128.91.40.27 math-4n11pc.math.upenn.edu 2025-05-30 03:01:53
128.91.40.28 4n63.math.upenn.edu 2025-06-04 08:21:25
128.91.40.29 3w3.math.upenn.edu 2025-06-04 08:21:25
128.91.40.30 chi.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.31 3n5-nat.math.upenn.edu 2025-06-04 08:21:25
128.91.40.32 ecrotty01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.33 smnaugle-inc86524.math.upenn.edu 2025-06-04 08:21:25
128.91.40.34 hartmann-22a.math.upenn.edu 2025-06-04 08:21:25
128.91.40.35 1n1-c09.math.upenn.edu 2025-06-04 08:21:25
128.91.40.36 yumengou-21-2.math.upenn.edu 2025-06-04 08:21:25
128.91.40.37 panova14.math.upenn.edu 2025-06-04 08:21:25
128.91.40.38 4n38-printer.math.upenn.edu 2025-06-04 08:21:25
128.91.40.39 3n2c.math.upenn.edu 2025-06-04 08:21:25
128.91.40.40 3n10pc.math.upenn.edu 2025-06-04 08:21:25
128.91.40.41 sas-hzhou24-wd.sas.upenn.edu 2025-06-04 08:21:25
128.91.40.42 4n38.math.upenn.edu 2025-06-04 08:21:25
128.91.40.43 ghrist-21-01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.44 drndic-21-02.math.upenn.edu 2025-06-04 08:21:25
128.91.40.45 4e1b.math.upenn.edu 2025-06-04 08:21:25
128.91.40.46 bozhen-ws4.sas.upenn.edu zuzannaj.math.upenn.edu 2025-06-04 08:21:25
128.91.40.47 4e7a.math.upenn.edu 2025-06-04 08:21:25
128.91.40.48 rimmer18.math.upenn.edu 2025-06-04 08:21:25
128.91.40.49 hans-hold.math.upenn.edu 2025-06-04 08:21:25
128.91.40.50 dmaxim01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.51 4e15-printer.math.upenn.edu 2025-06-04 08:21:25
128.91.40.52 1n1-c11.math.upenn.edu 2025-06-04 08:21:25
128.91.40.53 4n35.math.upenn.edu 2025-06-04 08:21:25
128.91.40.54 readingroomw7.math.upenn.edu 2025-06-04 08:21:25
128.91.40.55 4n15.math.upenn.edu 2025-06-04 08:21:25
128.91.40.56 4e11.math.upenn.edu 2025-06-04 08:21:25
128.91.40.57 chrla.math.upenn.edu 2025-06-04 08:21:25
128.91.40.58 4c11.math.upenn.edu 2025-06-04 08:21:25
128.91.40.59 4n31.math.upenn.edu 2025-06-04 08:21:25
128.91.40.60 3n8a.math.upenn.edu 2025-06-04 08:21:25
128.91.40.61 agibney-21-01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.62 wulab9.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.63 3c13.math.upenn.edu 2025-06-04 08:21:25
128.91.40.64 3n8c.math.upenn.edu 2025-06-04 08:21:25
128.91.40.65 sas-clcamp24-wd.sas.upenn.edu 2025-06-04 08:21:25
128.91.40.66 3n2a.math.upenn.edu 2025-05-30 03:01:53
128.91.40.67 sas-wulab241-wd.sas.upenn.edu 2025-06-04 08:21:25
128.91.40.68 4w6-printer.math.upenn.edu 2025-06-04 08:21:25
128.91.40.69 4w5c.math.upenn.edu 2025-06-04 08:21:25
128.91.40.70 3e10hp.math.upenn.edu 2025-06-04 08:21:25
128.91.40.71 4w5-printer.math.upenn.edu 2025-06-04 08:21:25
128.91.40.72 sas-pallant-wd.math.upenn.edu 2025-06-04 08:21:25
128.91.40.73 rtoney14.math.upenn.edu 2025-06-04 08:21:25
128.91.40.74 staff-4w1pc.math.upenn.edu 2025-06-04 08:21:25
128.91.40.75 croke.math.upenn.edu 2025-06-04 08:21:25
128.91.40.76 kadison.math.upenn.edu 2025-06-04 08:21:25
128.91.40.77 pop.math.upenn.edu 2025-06-04 08:21:25
128.91.40.78 tiresias.math.upenn.edu 2025-06-04 08:21:25
128.91.40.79 htowsner17.math.upenn.edu 2025-06-04 08:21:25
128.91.40.80 4e3pc.math.upenn.edu 2025-06-04 08:21:25
128.91.40.81 ted.math.upenn.edu 2025-06-04 08:21:25
128.91.40.82 mgersten02.math.upenn.edu 2025-06-04 08:21:25
128.91.40.83 drl-mathlibrary.math.upenn.edu 2025-06-04 08:21:25
128.91.40.84 shatz-07.math.upenn.edu 2025-06-04 08:21:25
128.91.40.85 dmaxim16.math.upenn.edu 2025-06-04 08:21:25
128.91.40.86 pemantleptr.math.upenn.edu 2025-06-04 08:21:25
128.91.40.87 4e15.math.upenn.edu 2025-06-04 08:21:25
128.91.40.88 kirillov14.math.upenn.edu 2025-06-04 08:21:25
128.91.40.89 4n47.math.upenn.edu 2025-06-04 08:21:25
128.91.40.90 flatgeorge.math.upenn.edu 2025-06-04 08:21:25
128.91.40.91 4w1-printer.math.upenn.edu 2025-06-04 08:21:25
128.91.40.92 shaneson01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.93 strain-3e5.math.upenn.edu 2025-06-04 08:21:25
128.91.40.94 3n2b.math.upenn.edu 2025-06-04 08:21:25
128.91.40.95 sas-kraken02-wd.sas.upenn.edu 2025-06-04 08:21:25
128.91.40.96 chinburg.math.upenn.edu 2025-06-04 08:21:25
128.91.40.97 polya.math.upenn.edu 2025-06-04 08:21:25
128.91.40.98 moduli.math.upenn.edu 2025-06-04 08:21:25
128.91.40.99 4w1.math.upenn.edu 2025-06-04 08:21:25
128.91.40.100 riemann.math.upenn.edu 2025-06-04 08:21:25
128.91.40.101 mele-21-01.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.102 blockj.math.upenn.edu 2025-06-04 08:21:25
128.91.40.103 harbater-21-01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.104 4e2a.math.upenn.edu 2025-06-04 08:21:25
128.91.40.105 3e2-printer.math.upenn.edu 2025-06-04 08:21:25
128.91.40.106 smurf-srv-so6.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.107 3c17.math.upenn.edu 2025-06-04 08:21:25
128.91.40.108 3c3.math.upenn.edu 2025-06-04 08:21:25
128.91.40.109 4n29.math.upenn.edu 2025-06-04 08:21:25
128.91.40.110 drlpt19.math.upenn.edu 2025-06-04 08:21:25
128.91.40.111 murmuno-21-01.math.upenn.edu 2025-05-30 03:01:53
128.91.40.112 4c1.math.upenn.edu 2025-06-04 08:21:25
128.91.40.113 lipeles-20.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.114 ssandler-21-01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.115 4e14.math.upenn.edu 2025-06-04 08:21:25
128.91.40.116 pemantle15.math.upenn.edu 2025-06-04 08:21:25
128.91.40.117 4n33.math.upenn.edu 2025-06-04 08:21:25
128.91.40.118 3e6a.math.upenn.edu 2025-06-04 08:21:25
128.91.40.119 grassi01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.120 4c5.math.upenn.edu 2025-06-04 08:21:25
128.91.40.121 combinatorics.math.upenn.edu 2025-06-04 08:21:25
128.91.40.122 placeholder.math.upenn.edu 2025-06-04 08:21:25
128.91.40.123 4w3.math.upenn.edu 2025-06-04 08:21:25
128.91.40.124 3c15.math.upenn.edu 2025-06-04 08:21:25
128.91.40.125 ok-computer.math.upenn.edu 2025-06-04 08:21:25
128.91.40.126 4e5.math.upenn.edu 2025-05-30 03:01:53
128.91.40.127 linux-image.math.upenn.edu 2025-06-04 08:21:25
128.91.40.128 4e3.math.upenn.edu 2025-06-04 08:21:25
128.91.40.129 tpantev.math.upenn.edu 2025-06-04 08:21:25
128.91.40.130 4n71pc.math.upenn.edu 2025-06-04 08:21:25
128.91.40.131 linux-loaner01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.132 readingroom.math.upenn.edu 2025-06-04 08:21:25
128.91.40.133 pop02.math.upenn.edu 2025-06-04 08:21:25
128.91.40.134 jhaglund15.math.upenn.edu 2025-06-04 08:21:25
128.91.40.135 3c17pc.math.upenn.edu 2025-06-04 08:21:25
128.91.40.136 dhcp-node-07.math.upenn.edu 2025-06-04 08:21:25
128.91.40.137 3n2d.math.upenn.edu 2025-06-04 08:21:25
128.91.40.138 drndic-21-01.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.139 3n5-usbc-ethernet-adapter.math.upenn.edu 2025-06-04 08:21:25
128.91.40.140 drndic-21-03.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.141 sas-drndicl6-wd.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.142 3c5.math.upenn.edu 2025-06-04 08:21:25
128.91.40.143 wulab3.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.144 3n10.math.upenn.edu 2025-06-04 08:21:25
128.91.40.145 license.math.upenn.edu 2025-05-30 03:01:53
128.91.40.146 4n26a.math.upenn.edu 2025-06-04 08:21:25
128.91.40.147 harbater16.math.upenn.edu 2025-05-30 03:01:53
128.91.40.148 yss15.math.upenn.edu 2025-06-04 08:21:25
128.91.40.149 cr-966.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.150 jove.math.upenn.edu 2025-06-04 08:21:25
128.91.40.151 zuzannaj-adapter.math.upenn.edu 2025-06-04 08:21:25
128.91.40.152 gjporter01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.153 1n1-a.math.upenn.edu 2025-06-04 08:21:25
128.91.40.154 vithayat-22-01.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.155 pop01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.156 strain02.math.upenn.edu 2025-05-30 03:01:53
128.91.40.157 math-1n1b.math.upenn.edu 2025-06-04 08:21:25
128.91.40.158 3e4printer.math.upenn.edu 2025-06-04 08:21:25
128.91.40.159 1n1-c01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.160 real.math.upenn.edu 2025-06-04 08:21:25
128.91.40.161 2e6-1.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.162 casa2.math.upenn.edu 2025-06-04 08:21:25
128.91.40.163 ricoh.math.upenn.edu 2025-06-04 08:21:25
128.91.40.164 advlab-22-02.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.165 scedrov18.math.upenn.edu 2025-06-04 08:21:25
128.91.40.166 advlab-22-01.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.167 melelab1.math.upenn.edu 2025-06-04 08:21:25
128.91.40.169 amaths-22-01.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.170 frankelb-22-01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.171 pand-laple-03.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.172 3c3.math.upenn.edu 2025-06-04 08:21:25
128.91.40.173 jrk-adapter.math.upenn.edu 2025-06-04 08:21:25
128.91.40.174 bozhen-7920.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.175 ercagp-22-01.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.176 jrk-22-adaptor.math.upenn.edu 2025-06-04 08:21:25
128.91.40.177 mmerling19.math.upenn.edu 2025-06-04 08:21:25
128.91.40.178 kazdan-home-22-01.math.upenn.edu 2025-06-04 08:21:25
128.91.40.179 jierans-temp-107170.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.180 squidgy.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.181 cerberus.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.182 rigel.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.183 hatsya.astro.upenn.edu 2025-05-30 03:01:53
128.91.40.184 bellatrix.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.185 dude.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.186 lambda.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.187 roach1.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.188 blastroach1.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.189 iras.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.190 lockman.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.191 toe.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.192 mce-act-a2.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.193 spitzer.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.194 pappa.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.195 sofia.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.196 herschel.astro.upenn.edu 2025-05-30 03:01:53
128.91.40.197 unagi.astro.upenn.edu 2025-05-30 03:01:53
128.91.40.198 omicron.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.199 torture.astro.upenn.edu 2025-06-04 08:21:25
128.91.40.200 shaffiques-mac-studio.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.201 chair.math.upenn.edu 2025-06-04 08:21:25
128.91.40.203 duplicate-5-21.sas.upenn.edu 2025-06-04 08:21:25
128.91.40.204 rosea00.sas.upenn.edu 2025-06-04 08:21:25
128.91.40.223 sas-kamien24-md.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.225 lib-mplgala-wl.library.upenn.edu 2025-06-04 08:21:25
128.91.40.226 lib-mpcirc01-wd.library.upenn.edu 2025-06-04 08:21:25
128.91.40.227 sas-drndicl5-wd.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.228 lib-mpkscha-wd.library.upenn.edu 2025-06-04 08:21:25
128.91.40.229 available.library.upenn.edu 2025-06-04 08:21:25
128.91.40.230 available.library.upenn.edu 2025-06-04 08:21:25
128.91.40.231 mpaptr01.library.upenn.edu 2025-06-04 08:21:25
128.91.40.232 mparel01.public.library.upenn.edu 2025-06-04 08:21:25
128.91.40.233 lib-mpa02-wd.library.upenn.edu 2025-06-04 08:21:25
128.91.40.234 lib-mpa01-wd.library.upenn.edu 2025-06-04 08:21:25
128.91.40.235 mpaptr02.public.library.upenn.edu 2025-06-04 08:21:25
128.91.40.236 niras-23.physics.upenn.edu 2025-06-04 08:21:25
128.91.40.237 sas-mpwien23-wd.math.upenn.edu 2025-06-04 08:21:25
128.91.40.238 mpaptr03.library.upenn.edu 2025-06-04 08:21:25
128.91.40.239 mpakl01.library.upenn.edu 2025-06-04 08:21:25
128.91.40.240 mpalkp01.public.library.upenn.edu 2025-06-04 08:21:25
128.91.40.241 lib-mpa05-wd.library.upenn.edu 2025-06-04 08:21:25
128.91.40.242 lib-mpalkp01-wd.library.upenn.edu 2025-06-04 08:21:25
128.91.40.243 mpasptr01.library.upenn.edu 2025-06-04 08:21:25
128.91.40.244 sas-michlast-wd.sas.upenn.edu 2025-06-04 08:21:25
128.91.40.245 3e12ricoh.math.upenn.edu 2025-06-04 08:21:25
128.91.40.248 sas-feulef24-wd.sas.upenn.edu 2025-06-04 08:21:25
128.91.40.250 sas-15dy7m2-wd.sas.upenn.edu 2025-06-04 08:21:25
128.91.40.251 sas-herrer24-wd.math.upenn.edu 2025-06-04 08:21:25
128.91.40.253 mpasha.library.upenn.edu 2025-06-04 08:21:25
128.91.40.254 drl-3n1-imc2500-pub.library.upenn.edu 2025-06-04 08:21:25
128.91.40.255 sas-3n3visit.math.upenn.edu 2025-06-04 08:21:25

Top 20 countries in total ASN

Country Allocated ASNs ASN IPv4 Number ASN IPv6 Number(/64)
United States 31381 1463309133 1153867275719288914
Brazil 9037 86226398 2305871897990729730
China 6564 346799264 129893613128288
India 5969 35348480 24480594907136
Russian Federation 5748 46622776 10705793691720
Indonesia 3603 18073088 1225629728768
Germany 3109 112752904 69548054544384
United Kingdom 3108 71550336 31532536299520
Australia 3015 40588592 20514282543104
Poland 2465 19272192 15298114229248
Canada 2443 54437736 4438988948736
France 2201 75328768 12154271827456
Ukraine 2009 8261632 5013717516288
Bangladesh 1870 1933568 908494569472
Netherlands 1595 51310544 26556465939968
Argentina 1300 19708416 18815344377856
Italy 1298 52409856 28591018606592
Hong Kong 1280 18154148 8554605118208
Japan 1269 159027048 33573211799552
Spain 1233 34628352 7522246791168