IPv4 R&E Routing Table Report 20:30 GMT Sun 20 Apr, 2025 IPv4 BGP Table (R&E) as seen at PREGINET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/PREGINET/ Analysis Summary ---------------- BGP routing table entries examined: 159465 Prefixes after maximum aggregation (per Origin AS): 63934 Deaggregation factor: 2.49 Unique aggregates announced (without unneeded subnets): 91208 Number of IPv4 prefixes with a valid ROA: 87628 Number of IPv4 prefixes with an invalid ROA: 61 Number of IPv4 prefixes with no ROA: 71776 Total ASes present in the Internet Routing Table: 14828 Prefixes per ASN: 10.75 Origin-only ASes present in the Internet Routing Table: 12537 Origin ASes announcing only one prefix: 6039 Transit ASes present in the Internet Routing Table: 2291 Transit-only ASes present in the Internet Routing Table: 505 Paths with bogon ASNs present in the IPv4 Routing Table: 3 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 45 Max AS path prepend of ASN (212940) 40 Prefixes from unregistered ASNs in the Routing Table: 77 Number of instances of unregistered ASNs: 77 Number of 32-bit ASNs allocated by the RIRs: 46256 Number of 32-bit ASNs visible in the Routing Table: 7384 Prefixes from 32-bit ASNs in the Routing Table: 30405 Number of bogon 32-bit ASNs visible in the Routing Table: 6 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 63 Number of addresses announced to Internet: 508198144 Equivalent to 30 /8s, 74 /16s and 125 /24s Percentage of available address space announced: 13.7 Percentage of allocated address space announced: 13.7 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 39305 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78152 Total APNIC prefixes after maximum aggregation: 25382 APNIC Deaggregation factor: 3.08 Prefixes being announced from the APNIC address blocks: 76439 Unique aggregates announced from the APNIC address blocks: 37145 APNIC Region origin ASes present in the Internet Routing Table: 5036 APNIC Prefixes per ASN: 15.18 APNIC Region origin ASes announcing only one prefix: 1868 APNIC Region transit ASes present in the Internet Routing Table: 740 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3238 Number of APNIC addresses announced to Internet: 189997824 Equivalent to 11 /8s, 83 /16s and 35 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-155961 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 26915 Total ARIN prefixes after maximum aggregation: 14630 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26734 Unique aggregates announced from the ARIN address blocks: 20606 ARIN Region origin ASes present in the Internet Routing Table: 2142 ARIN Prefixes per ASN: 12.48 ARIN Region origin ASes announcing only one prefix: 1005 ARIN Region transit ASes present in the Internet Routing Table: 232 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 473 Number of ARIN addresses announced to Internet: 167828224 Equivalent to 10 /8s, 0 /16s and 219 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-402332 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 39791 Total RIPE prefixes after maximum aggregation: 18794 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 40657 Unique aggregates announced from the RIPE address blocks: 25504 RIPE Region origin ASes present in the Internet Routing Table: 4675 RIPE Prefixes per ASN: 8.70 RIPE Region origin ASes announcing only one prefix: 2163 RIPE Region transit ASes present in the Internet Routing Table: 687 Average RIPE Region AS path length visible: 6.2 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1645 Number of RIPE addresses announced to Internet: 126143232 Equivalent to 7 /8s, 132 /16s and 203 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 12707 Total LACNIC prefixes after maximum aggregation: 4600 LACNIC Deaggregation factor: 2.76 Prefixes being announced from the LACNIC address blocks: 12108 Unique aggregates announced from the LACNIC address blocks: 5934 LACNIC Region origin ASes present in the Internet Routing Table: 2322 LACNIC Prefixes per ASN: 5.21 LACNIC Region origin ASes announcing only one prefix: 955 LACNIC Region transit ASes present in the Internet Routing Table: 501 Average LACNIC Region AS path length visible: 7.5 Max LACNIC Region AS path length visible: 29 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1956 Number of LACNIC addresses announced to Internet: 18537472 Equivalent to 1 /8s, 26 /16s and 220 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 1823 Total AfriNIC prefixes after maximum aggregation: 474 AfriNIC Deaggregation factor: 3.85 Prefixes being announced from the AfriNIC address blocks: 3464 Unique aggregates announced from the AfriNIC address blocks: 1987 AfriNIC Region origin ASes present in the Internet Routing Table: 126 AfriNIC Prefixes per ASN: 27.49 AfriNIC Region origin ASes announcing only one prefix: 48 AfriNIC Region transit ASes present in the Internet Routing Table: 39 Average AfriNIC Region AS path length visible: 7.5 Max AfriNIC Region AS path length visible: 28 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 72 Number of AfriNIC addresses announced to Internet: 5660160 Equivalent to 0 /8s, 86 /16s and 94 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 10170 8753 88 CHINAMOBILE-CN China Mobile Communication 9498 4161 497 262 BBIL-AP BHARTI Airtel Ltd., IN 24560 2856 850 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2255 1085 454 VIETEL-AS-AP Viettel Group, VN 4766 2034 6037 954 KIXS-AS-KR Korea Telecom, KR 45609 1840 824 324 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1598 812 180 CMNET-JIANGSU-AP China Mobile communicati 56041 1574 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 53 CMNET-HUNAN-AP China Mobile communication 9919 967 170 64 NCIC-TW New Century InfoComm Tech Co., Lt Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 30036 2403 334 672 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 3097 506 CHARTER-20115, US 16509 2211 3610 1267 AMAZON-02, US 11492 1889 131 1031 CABLEONE, US 714 1221 4391 8 APPLE-ENGINEERING, US 8075 748 16019 632 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1912 301 TWC-10796-MIDWEST, US 12083 574 192 88 WOW-INTERNET, US 2152 396 44 265 CENIC-2152, US 33363 384 1416 213 BHN-33363, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 4179 255 52 ALJAWWALSTC-AS, SA 12389 2304 1997 779 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 917 639 326 SAUDINETSTC-AS, SA 49505 858 92 356 SELECTEL, RU 50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 610 38 271 TIMEWEB-AS, RU 9198 472 176 188 KAZTELECOM-AS, KZ 9155 426 37 9 QNET Kuwait, KW 42772 373 63 104 A1-BY-AS, BY 50340 346 34 227 SELECTEL-MSK, RU Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1864 679 244 UNINET, MX 7738 605 1807 67 V tal, BR 8167 342 1089 44 V tal, BR 1916 229 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 217 16 28 Companhia Itabirana Telecomunicacoes Ltda 28391 159 10 71 Universidad Juarez Autonoma de Tabasco, M 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 128 10 26 CPS, AR 11340 110 25 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 534 82 3 KENET-AS, KE 2018 372 318 69 TENET-1, ZA 36873 198 83 30 VNL1-AS, NG 15399 129 12 61 WANANCHI-, KE 30999 74 25 30 EMTEL-AS-AP, MU 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 34 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37531 20 2 16 AIRTEL-NIGER, NE Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 10170 8753 88 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4161 497 262 BBIL-AP BHARTI Airtel Ltd., IN 24560 2856 850 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2403 334 672 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2304 1997 779 ROSTELECOM-AS PJSC Rostelecom. Technical 7552 2255 1085 454 VIETEL-AS-AP Viettel Group, VN 20115 2235 3097 506 CHARTER-20115, US 16509 2211 3610 1267 AMAZON-02, US 4766 2034 6037 954 KIXS-AS-KR Korea Telecom, KR Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 39891 4179 4127 ALJAWWALSTC-AS, SA 9498 4161 3899 BBIL-AP BHARTI Airtel Ltd., IN 24560 2856 2319 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 7552 2255 1801 VIETEL-AS-AP Viettel Group, VN 30036 2403 1731 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 1729 CHARTER-20115, US 8151 1864 1620 UNINET, MX 12389 2304 1525 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 45609 1840 1516 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56041 1574 1500 CMNET-ZHEJIANG-AP China Mobile communications c Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 393377 UNALLOCATED 12.195.116.0/24 40264 TWC-40264-WI-MN-UPPERMI 202528 UNALLOCATED 23.143.136.0/24 153371 BACKWAVESLIMITED-AS-AP 46123 UNALLOCATED 24.73.234.0/24 33363 BHN-33363, US 53771 UNALLOCATED 24.172.253.0/24 11426 TWC-11426-CAROLINAS, US 53657 UNALLOCATED 24.213.247.0/24 11351 TWC-11351-NORTHEAST, US 11835 UNALLOCATED 45.4.236.0/22 14868 Ligga Telecomunicacoes 36288 UNALLOCATED 64.79.154.0/24 293 ESNET, US 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, US 396324 UNALLOCATED 66.57.112.0/24 11426 TWC-11426-CAROLINAS, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 102.219.4.0/22 Origin: 328932 RESERVED, ZZ 102.219.4.0/22 Transit: 36873 VNL1-AS, NG 103.5.136.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.5.136.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.6.224.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.6.224.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.8.106.0/24 Origin: 135391 AOFEI-HK AOFEI DATA INTERNATIONAL COMPAN 103.8.106.0/24 Transit: 55888 NINTATSU Nintatsu Global Telecommunicati 103.12.68.0/22 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/22 Transit: 17476 CHL-AS-AP CloudRadium HK Limited, HK Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:1 /9:2 /10:13 /11:13 /12:49 /13:82 /14:167 /15:397 /16:2483 /17:1330 /18:2817 /19:4423 /20:7613 /21:9453 /22:17392 /23:16511 /24:96718 /25:1 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 39891 3321 4179 ALJAWWALSTC-AS, SA 30036 2087 2403 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1400 2304 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1314 1889 CABLEONE, US 8151 1028 1864 UNINET, MX 49505 594 858 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 551 2235 CHARTER-20115, US 36914 510 534 KENET-AS, KE 9123 493 610 TIMEWEB-AS, RU Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:199 2:329 3:102 5:1079 8:68 12:80 13:87 14:390 15:58 16:63 17:316 18:72 20:28 23:727 24:595 25:2 27:613 31:520 32:2 34:3 35:37 36:1348 37:632 38:522 39:698 40:1 41:250 42:147 43:668 44:22 45:2536 46:763 47:63 49:207 50:319 51:138 52:257 54:41 57:28 58:304 59:453 60:95 61:814 62:559 63:128 64:380 65:287 66:300 67:302 68:69 69:268 70:33 71:82 72:246 74:203 75:68 76:62 77:476 78:452 79:247 80:222 81:350 82:389 83:186 84:194 85:376 86:142 87:304 88:103 89:482 90:133 91:1402 92:438 93:918 94:785 95:1467 96:266 97:146 98:72 99:47 101:462 102:157 103:8174 104:381 105:180 106:289 107:114 108:142 109:455 110:229 111:2099 112:926 113:312 114:811 115:308 116:405 117:1390 118:416 119:282 120:1232 121:419 122:1756 123:459 124:330 125:1585 126:6 128:405 129:64 130:126 131:204 132:49 133:304 134:160 135:24 136:79 137:162 138:336 139:228 140:317 141:190 142:79 143:169 144:119 145:133 146:372 147:256 148:357 149:234 150:267 151:498 152:468 153:37 154:771 155:198 156:452 157:286 158:131 159:394 160:680 161:148 162:277 163:311 164:145 165:223 166:49 167:188 168:349 169:79 170:484 171:198 172:214 173:972 174:118 175:564 176:725 177:571 178:665 179:202 180:457 181:165 182:1551 183:1062 184:138 185:2300 186:216 187:476 188:583 189:294 190:487 191:101 192:1840 193:1137 194:924 195:771 196:279 197:395 198:752 199:556 200:763 201:532 202:2492 203:2236 204:289 205:271 206:302 207:326 208:241 209:314 210:1472 211:1144 212:781 213:526 214:2 216:383 217:552 218:805 219:65 220:569 221:359 222:135 223:1065 End of report