IPv4 R&E Routing Table Report 20:30 GMT Tue 18 Feb, 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: 157410 Prefixes after maximum aggregation (per Origin AS): 63448 Deaggregation factor: 2.48 Unique aggregates announced (without unneeded subnets): 89634 Number of IPv4 prefixes with a valid ROA: 83917 Number of IPv4 prefixes with an invalid ROA: 63 Number of IPv4 prefixes with no ROA: 73430 Total ASes present in the Internet Routing Table: 14592 Prefixes per ASN: 10.79 Origin-only ASes present in the Internet Routing Table: 12313 Origin ASes announcing only one prefix: 5915 Transit ASes present in the Internet Routing Table: 2279 Transit-only ASes present in the Internet Routing Table: 517 Paths with bogon ASNs present in the IPv4 Routing Table: 16 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 40 Max AS path prepend of ASN ( 37447) 36 Prefixes from unregistered ASNs in the Routing Table: 57 Number of instances of unregistered ASNs: 74 Number of 32-bit ASNs allocated by the RIRs: 46150 Number of 32-bit ASNs visible in the Routing Table: 7137 Prefixes from 32-bit ASNs in the Routing Table: 29184 Number of bogon 32-bit ASNs visible in the Routing Table: 36 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 45 Number of addresses announced to Internet: 512633088 Equivalent to 30 /8s, 142 /16s and 41 /24s Percentage of available address space announced: 13.8 Percentage of allocated address space announced: 13.8 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: 38800 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 75835 Total APNIC prefixes after maximum aggregation: 25274 APNIC Deaggregation factor: 3.00 Prefixes being announced from the APNIC address blocks: 74328 Unique aggregates announced from the APNIC address blocks: 36072 APNIC Region origin ASes present in the Internet Routing Table: 4846 APNIC Prefixes per ASN: 15.34 APNIC Region origin ASes announcing only one prefix: 1785 APNIC Region transit ASes present in the Internet Routing Table: 718 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3077 Number of APNIC addresses announced to Internet: 191583744 Equivalent to 11 /8s, 107 /16s and 86 /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: 26817 Total ARIN prefixes after maximum aggregation: 14479 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26059 Unique aggregates announced from the ARIN address blocks: 20545 ARIN Region origin ASes present in the Internet Routing Table: 2118 ARIN Prefixes per ASN: 12.30 ARIN Region origin ASes announcing only one prefix: 1008 ARIN Region transit ASes present in the Internet Routing Table: 233 Average ARIN Region AS path length visible: 5.1 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 463 Number of ARIN addresses announced to Internet: 163995648 Equivalent to 9 /8s, 198 /16s and 96 /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: 40330 Total RIPE prefixes after maximum aggregation: 18717 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 40858 Unique aggregates announced from the RIPE address blocks: 24980 RIPE Region origin ASes present in the Internet Routing Table: 4682 RIPE Prefixes per ASN: 8.73 RIPE Region origin ASes announcing only one prefix: 2160 RIPE Region transit ASes present in the Internet Routing Table: 683 Average RIPE Region AS path length visible: 6.2 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1626 Number of RIPE addresses announced to Internet: 126114816 Equivalent to 7 /8s, 132 /16s and 92 /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: 12518 Total LACNIC prefixes after maximum aggregation: 4429 LACNIC Deaggregation factor: 2.83 Prefixes being announced from the LACNIC address blocks: 12514 Unique aggregates announced from the LACNIC address blocks: 5943 LACNIC Region origin ASes present in the Internet Routing Table: 2275 LACNIC Prefixes per ASN: 5.50 LACNIC Region origin ASes announcing only one prefix: 918 LACNIC Region transit ASes present in the Internet Routing Table: 502 Average LACNIC Region AS path length visible: 7.3 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1902 Number of LACNIC addresses announced to Internet: 24517888 Equivalent to 1 /8s, 118 /16s and 29 /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: 1853 Total AfriNIC prefixes after maximum aggregation: 503 AfriNIC Deaggregation factor: 3.68 Prefixes being announced from the AfriNIC address blocks: 3606 Unique aggregates announced from the AfriNIC address blocks: 2057 AfriNIC Region origin ASes present in the Internet Routing Table: 133 AfriNIC Prefixes per ASN: 27.11 AfriNIC Region origin ASes announcing only one prefix: 44 AfriNIC Region transit ASes present in the Internet Routing Table: 36 Average AfriNIC Region AS path length visible: 7.7 Max AfriNIC Region AS path length visible: 40 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 69 Number of AfriNIC addresses announced to Internet: 6390016 Equivalent to 0 /8s, 97 /16s and 129 /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 10158 8753 87 CHINAMOBILE-CN China Mobile Communication 9498 4155 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2841 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45609 1796 813 334 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 4766 1655 6115 923 KIXS-AS-KR Korea Telecom, KR 56046 1581 804 173 CMNET-JIANGSU-AP China Mobile communicati 56041 1544 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1504 192 53 CMNET-HUNAN-AP China Mobile communication 7552 1423 606 469 VIETEL-AS-AP Viettel Group, VN 9919 964 170 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 2429 340 611 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2232 3095 505 CHARTER-20115, US 16509 2187 3520 1255 AMAZON-02, US 11492 1897 131 1025 CABLEONE, US 714 1204 4391 8 APPLE-ENGINEERING, US 8075 711 16017 602 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 645 1950 304 TWC-10796-MIDWEST, US 12083 445 191 84 WOW-INTERNET, US 2152 383 39 259 CENIC-2152, US 33363 383 1416 210 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 2217 1997 787 ROSTELECOM-AS, RU 9198 1041 355 113 KAZTELECOM-AS, KZ 49505 854 92 355 SELECTEL, RU 25019 768 643 296 SAUDINETSTC-AS, SA 50010 661 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 574 36 254 TIMEWEB-AS, RU 9155 431 37 9 QNET Kuwait, KW 42772 374 63 104 A1-BY-AS, BY 20940 351 3388 44 AKAMAI-ASN1, NL 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 1905 633 250 UNINET, MX 7738 605 1807 67 V tal, BR 8167 318 1083 46 V tal, BR 1916 235 178 41 Rede Nacional de Ensino e Pesquisa, BR 28201 218 16 28 Companhia Itabirana Telecomunicacoes Ltda 28391 157 10 69 Universidad Juarez Autonoma de Tabasco, M 52251 139 6 9 NORTECH, AR 11014 131 10 26 CPS, AR 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11340 108 9 52 Red Universitaria Nacional, CL 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 476 82 3 KENET-AS, KE 2018 378 319 71 TENET-1, ZA 36873 198 83 44 VNL1-AS, NG 37075 78 248 27 ZAINUGAS, UG 15399 75 7 35 WANANCHI-, KE 30999 74 25 33 EMTEL-AS-AP, MU 8094 47 48 18 PUKNET, ZA 37315 46 10 5 CipherWave, ZA 37182 36 8 1 TERNET, TZ 37215 34 8 1 MAREN, MW 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 10158 8753 87 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4155 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2841 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2429 340 611 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2232 3095 505 CHARTER-20115, US 12389 2217 1997 787 ROSTELECOM-AS, RU 16509 2187 3520 1255 AMAZON-02, US 8151 1905 633 250 UNINET, MX 11492 1897 131 1025 CABLEONE, US 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 4155 3890 BBIL-AP BHARTI Airtel Ltd., IN 24560 2841 2313 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 30036 2429 1818 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2232 1727 CHARTER-20115, US 8151 1905 1655 UNINET, MX 56041 1544 1470 CMNET-ZHEJIANG-AP China Mobile communications c 45609 1796 1462 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56047 1504 1451 CMNET-HUNAN-AP China Mobile communications corp 12389 2217 1430 ROSTELECOM-AS, RU 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 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 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, US 396324 UNALLOCATED 66.57.112.0/24 11426 TWC-11426-CAROLINAS, US 26345 UNALLOCATED 71.13.182.0/24 20115 CHARTER-20115, US 46123 UNALLOCATED 71.46.221.0/24 33363 BHN-33363, 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 45.127.96.0/22 Origin: 55933 CLOUDIE-AS-AP Cloudie Limited, HK 45.127.96.0/22 Transit: 6939 HURRICANE, US 45.252.60.0/22 Origin: 997 KLAYER, US 45.252.60.0/22 Transit: 55933 CLOUDIE-AS-AP Cloudie Limited, HK 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 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 /12:48 /13:80 /14:166 /15:401 /16:2540 /17:1387 /18:2813 /19:4390 /20:7695 /21:9315 /22:17066 /23:16130 /24:95349 /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 2113 2429 MEDIACOM-ENTERPRISE-BUSINESS, US 11492 1336 1897 CABLEONE, US 12389 1321 2217 ROSTELECOM-AS, RU 8151 1017 1905 UNINET, MX 9198 613 1041 KAZTELECOM-AS, KZ 49505 590 854 SELECTEL, RU 20115 548 2232 CHARTER-20115, US 50010 548 661 NAWRAS-AS Sultanate of Oman, OM 16509 481 2187 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:246 2:318 3:95 5:1056 6:4 8:57 12:81 13:87 14:366 15:57 16:59 17:309 18:76 20:23 23:728 24:501 25:2 27:602 31:530 32:2 34:3 35:37 36:1362 37:568 38:504 39:688 40:1 41:245 42:166 43:653 44:19 45:2395 46:745 47:63 49:200 50:323 51:138 52:259 54:41 57:28 58:290 59:435 60:95 61:790 62:592 63:130 64:387 65:176 66:299 67:318 68:68 69:249 70:32 71:79 72:243 74:204 75:64 76:55 77:492 78:441 79:234 80:245 81:345 82:358 83:183 84:180 85:324 86:134 87:303 88:97 89:509 90:132 91:1400 92:436 93:929 94:677 95:1476 96:272 97:146 98:76 99:47 101:499 102:136 103:7823 104:389 105:181 106:289 107:110 108:138 109:419 110:217 111:2095 112:905 113:356 114:800 115:263 116:353 117:1359 118:375 119:295 120:1229 121:412 122:1779 123:479 124:317 125:1589 126:1 128:391 129:57 130:130 131:184 132:43 133:303 134:161 135:25 136:81 137:157 138:323 139:232 140:315 141:198 142:92 143:155 144:120 145:95 146:377 147:251 148:371 149:233 150:271 151:493 152:461 153:36 154:929 155:167 156:494 157:274 158:125 159:389 160:622 161:142 162:260 163:255 164:147 165:212 166:62 167:198 168:479 169:77 170:560 171:149 172:217 173:985 174:123 175:563 176:685 177:569 178:662 179:218 180:465 181:170 182:1590 183:1064 184:133 185:2277 186:232 187:458 188:611 189:251 190:512 191:102 192:1817 193:1129 194:935 195:765 196:241 197:395 198:738 199:528 200:773 201:536 202:2391 203:2163 204:269 205:270 206:337 207:320 208:236 209:303 210:1472 211:1107 212:811 213:545 214:9 216:387 217:555 218:787 219:67 220:553 221:362 222:125 223:1053 End of report