IPv4 R&E Routing Table Report 20:30 GMT Tue 22 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: 159652 Prefixes after maximum aggregation (per Origin AS): 64050 Deaggregation factor: 2.49 Unique aggregates announced (without unneeded subnets): 91391 Number of IPv4 prefixes with a valid ROA: 87761 Number of IPv4 prefixes with an invalid ROA: 59 Number of IPv4 prefixes with no ROA: 71832 Total ASes present in the Internet Routing Table: 14851 Prefixes per ASN: 10.75 Origin-only ASes present in the Internet Routing Table: 12557 Origin ASes announcing only one prefix: 6038 Transit ASes present in the Internet Routing Table: 2294 Transit-only ASes present in the Internet Routing Table: 521 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: 46261 Number of 32-bit ASNs visible in the Routing Table: 7407 Prefixes from 32-bit ASNs in the Routing Table: 30476 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: 62 Number of addresses announced to Internet: 507005696 Equivalent to 30 /8s, 56 /16s and 75 /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: 39462 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78213 Total APNIC prefixes after maximum aggregation: 25452 APNIC Deaggregation factor: 3.07 Prefixes being announced from the APNIC address blocks: 76488 Unique aggregates announced from the APNIC address blocks: 37204 APNIC Region origin ASes present in the Internet Routing Table: 5042 APNIC Prefixes per ASN: 15.17 APNIC Region origin ASes announcing only one prefix: 1872 APNIC Region transit ASes present in the Internet Routing Table: 743 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3254 Number of APNIC addresses announced to Internet: 190032896 Equivalent to 11 /8s, 83 /16s and 172 /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: 26865 Total ARIN prefixes after maximum aggregation: 14621 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26727 Unique aggregates announced from the ARIN address blocks: 20601 ARIN Region origin ASes present in the Internet Routing Table: 2143 ARIN Prefixes per ASN: 12.47 ARIN Region origin ASes announcing only one prefix: 1003 ARIN Region transit ASes present in the Internet Routing Table: 230 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: 472 Number of ARIN addresses announced to Internet: 167895296 Equivalent to 10 /8s, 1 /16s and 225 /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: 39980 Total RIPE prefixes after maximum aggregation: 18858 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 40839 Unique aggregates announced from the RIPE address blocks: 25680 RIPE Region origin ASes present in the Internet Routing Table: 4676 RIPE Prefixes per ASN: 8.73 RIPE Region origin ASes announcing only one prefix: 2158 RIPE Region transit ASes present in the Internet Routing Table: 685 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: 1650 Number of RIPE addresses announced to Internet: 124931328 Equivalent to 7 /8s, 114 /16s and 77 /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: 12674 Total LACNIC prefixes after maximum aggregation: 4588 LACNIC Deaggregation factor: 2.76 Prefixes being announced from the LACNIC address blocks: 12079 Unique aggregates announced from the LACNIC address blocks: 5912 LACNIC Region origin ASes present in the Internet Routing Table: 2324 LACNIC Prefixes per ASN: 5.20 LACNIC Region origin ASes announcing only one prefix: 960 LACNIC Region transit ASes present in the Internet Routing Table: 507 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: 1962 Number of LACNIC addresses announced to Internet: 18455552 Equivalent to 1 /8s, 25 /16s and 156 /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: 1843 Total AfriNIC prefixes after maximum aggregation: 477 AfriNIC Deaggregation factor: 3.86 Prefixes being announced from the AfriNIC address blocks: 3457 Unique aggregates announced from the AfriNIC address blocks: 1963 AfriNIC Region origin ASes present in the Internet Routing Table: 123 AfriNIC Prefixes per ASN: 28.11 AfriNIC Region origin ASes announcing only one prefix: 45 AfriNIC Region transit ASes present in the Internet Routing Table: 37 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: 69 Number of AfriNIC addresses announced to Internet: 5659648 Equivalent to 0 /8s, 86 /16s and 92 /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 10173 8753 89 CHINAMOBILE-CN China Mobile Communication 9498 4161 497 262 BBIL-AP BHARTI Airtel Ltd., IN 24560 2854 851 543 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 1817 817 358 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 968 170 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 2222 3612 1277 AMAZON-02, US 11492 1868 129 1020 CABLEONE, US 714 1221 4391 8 APPLE-ENGINEERING, US 8075 750 16020 634 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1912 301 TWC-10796-MIDWEST, US 12083 576 192 88 WOW-INTERNET, US 2152 398 45 267 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 918 639 326 SAUDINETSTC-AS, SA 49505 859 92 356 SELECTEL, RU 50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 614 38 274 TIMEWEB-AS, RU 9198 472 176 188 KAZTELECOM-AS, KZ 9155 426 37 9 QNET Kuwait, KW 21299 405 77 56 KAR-TEL-AS Almaty, Republic of Kazakhstan 42772 373 63 104 A1-BY-AS, BY 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 1862 676 244 UNINET, MX 7738 605 1807 67 V tal, BR 8167 342 1089 44 V tal, BR 1916 235 177 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 545 82 3 KENET-AS, KE 2018 373 318 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 22 2 18 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 10173 8753 89 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4161 497 262 BBIL-AP BHARTI Airtel Ltd., IN 24560 2854 851 543 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 2222 3612 1277 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 2854 2311 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 1862 1618 UNINET, MX 12389 2304 1525 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 56041 1574 1500 CMNET-ZHEJIANG-AP China Mobile communications c 45609 1817 1459 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 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 /12:48 /13:82 /14:167 /15:397 /16:2483 /17:1329 /18:2819 /19:4407 /20:7622 /21:9446 /22:17406 /23:16493 /24:96923 /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 1294 1868 CABLEONE, US 8151 1028 1862 UNINET, MX 49505 595 859 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 551 2235 CHARTER-20115, US 36914 521 545 KENET-AS, KE 9123 497 614 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 5:1097 8:68 12:81 13:87 14:391 15:58 16:63 17:315 18:72 20:28 23:727 24:591 25:2 27:611 31:522 32:2 34:3 35:37 36:1350 37:657 38:521 39:698 40:1 41:253 42:144 43:672 44:23 45:2490 46:775 47:63 49:207 50:319 51:138 52:257 54:41 57:28 58:302 59:453 60:95 61:811 62:561 63:128 64:381 65:289 66:299 67:294 68:69 69:269 70:33 71:82 72:246 74:203 75:68 76:62 77:497 78:452 79:244 80:224 81:352 82:379 83:188 84:194 85:385 86:143 87:305 88:108 89:488 90:133 91:1401 92:452 93:927 94:787 95:1488 96:265 97:146 98:71 99:47 101:462 102:164 103:8197 104:376 105:180 106:287 107:111 108:142 109:456 110:231 111:2100 112:929 113:309 114:811 115:310 116:405 117:1386 118:415 119:283 120:1232 121:419 122:1756 123:456 124:329 125:1585 126:6 128:401 129:65 130:129 131:200 132:50 133:304 134:162 135:24 136:79 137:166 138:336 139:227 140:318 141:192 142:79 143:169 144:125 145:138 146:373 147:258 148:355 149:234 150:268 151:498 152:460 153:37 154:776 155:198 156:449 157:287 158:131 159:394 160:681 161:149 162:277 163:312 164:145 165:219 166:48 167:189 168:350 169:79 170:487 171:198 172:212 173:973 174:117 175:563 176:722 177:555 178:676 179:191 180:456 181:170 182:1579 183:1061 184:136 185:2301 186:216 187:475 188:618 189:293 190:486 191:103 192:1843 193:1133 194:929 195:780 196:282 197:402 198:762 199:557 200:769 201:531 202:2489 203:2239 204:289 205:270 206:304 207:325 208:242 209:307 210:1476 211:1146 212:764 213:530 214:2 216:382 217:574 218:806 219:64 220:569 221:359 222:135 223:1064 End of report