IPv4 R&E Routing Table Report 20:30 GMT Fri 21 Mar, 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: 157428 Prefixes after maximum aggregation (per Origin AS): 63893 Deaggregation factor: 2.46 Unique aggregates announced (without unneeded subnets): 90631 Number of IPv4 prefixes with a valid ROA: 85640 Number of IPv4 prefixes with an invalid ROA: 65 Number of IPv4 prefixes with no ROA: 71723 Total ASes present in the Internet Routing Table: 14760 Prefixes per ASN: 10.67 Origin-only ASes present in the Internet Routing Table: 12485 Origin ASes announcing only one prefix: 6009 Transit ASes present in the Internet Routing Table: 2275 Transit-only ASes present in the Internet Routing Table: 512 Paths with bogon ASNs present in the IPv4 Routing Table: 6 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 51 Max AS path prepend of ASN (212940) 40 Prefixes from unregistered ASNs in the Routing Table: 64 Number of instances of unregistered ASNs: 69 Number of 32-bit ASNs allocated by the RIRs: 46125 Number of 32-bit ASNs visible in the Routing Table: 7307 Prefixes from 32-bit ASNs in the Routing Table: 29155 Number of bogon 32-bit ASNs visible in the Routing Table: 12 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 44 Number of addresses announced to Internet: 509219328 Equivalent to 30 /8s, 90 /16s and 18 /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: 38792 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 76552 Total APNIC prefixes after maximum aggregation: 25405 APNIC Deaggregation factor: 3.01 Prefixes being announced from the APNIC address blocks: 74924 Unique aggregates announced from the APNIC address blocks: 36694 APNIC Region origin ASes present in the Internet Routing Table: 5039 APNIC Prefixes per ASN: 14.87 APNIC Region origin ASes announcing only one prefix: 1872 APNIC Region transit ASes present in the Internet Routing Table: 738 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 51 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3239 Number of APNIC addresses announced to Internet: 189074688 Equivalent to 11 /8s, 69 /16s and 13 /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: 27109 Total ARIN prefixes after maximum aggregation: 14861 ARIN Deaggregation factor: 1.82 Prefixes being announced from the ARIN address blocks: 26756 Unique aggregates announced from the ARIN address blocks: 20762 ARIN Region origin ASes present in the Internet Routing Table: 2155 ARIN Prefixes per ASN: 12.42 ARIN Region origin ASes announcing only one prefix: 1017 ARIN Region transit ASes present in the Internet Routing Table: 234 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: 471 Number of ARIN addresses announced to Internet: 171659264 Equivalent to 10 /8s, 59 /16s and 80 /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: 39350 Total RIPE prefixes after maximum aggregation: 18784 RIPE Deaggregation factor: 2.09 Prefixes being announced from the RIPE address blocks: 40119 Unique aggregates announced from the RIPE address blocks: 25414 RIPE Region origin ASes present in the Internet Routing Table: 4674 RIPE Prefixes per ASN: 8.58 RIPE Region origin ASes announcing only one prefix: 2161 RIPE Region transit ASes present in the Internet Routing Table: 678 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: 1641 Number of RIPE addresses announced to Internet: 124483072 Equivalent to 7 /8s, 107 /16s and 118 /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: 12410 Total LACNIC prefixes after maximum aggregation: 4374 LACNIC Deaggregation factor: 2.84 Prefixes being announced from the LACNIC address blocks: 11876 Unique aggregates announced from the LACNIC address blocks: 5820 LACNIC Region origin ASes present in the Internet Routing Table: 2231 LACNIC Prefixes per ASN: 5.32 LACNIC Region origin ASes announcing only one prefix: 913 LACNIC Region transit ASes present in the Internet Routing Table: 491 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1885 Number of LACNIC addresses announced to Internet: 18338560 Equivalent to 1 /8s, 23 /16s and 211 /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: 1943 Total AfriNIC prefixes after maximum aggregation: 420 AfriNIC Deaggregation factor: 4.63 Prefixes being announced from the AfriNIC address blocks: 3709 Unique aggregates announced from the AfriNIC address blocks: 1903 AfriNIC Region origin ASes present in the Internet Routing Table: 125 AfriNIC Prefixes per ASN: 29.67 AfriNIC Region origin ASes announcing only one prefix: 46 AfriNIC Region transit ASes present in the Internet Routing Table: 38 Average AfriNIC Region AS path length visible: 7.5 Max AfriNIC Region AS path length visible: 40 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 71 Number of AfriNIC addresses announced to Internet: 5633792 Equivalent to 0 /8s, 85 /16s and 247 /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 10148 8753 87 CHINAMOBILE-CN China Mobile Communication 9498 4145 496 257 BBIL-AP BHARTI Airtel Ltd., IN 24560 2839 847 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2004 6034 928 KIXS-AS-KR Korea Telecom, KR 45609 1839 823 320 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 7552 1758 692 534 VIETEL-AS-AP Viettel Group, VN 56046 1580 804 173 CMNET-JIANGSU-AP China Mobile communicati 56041 1547 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1491 192 53 CMNET-HUNAN-AP China Mobile communication 9919 965 170 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 2398 332 698 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2229 3095 504 CHARTER-20115, US 16509 2199 3549 1256 AMAZON-02, US 11492 1872 130 1023 CABLEONE, US 714 1205 4391 8 APPLE-ENGINEERING, US 8075 726 16018 611 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 640 1944 302 TWC-10796-MIDWEST, US 12083 437 191 84 WOW-INTERNET, US 2152 385 39 261 CENIC-2152, US 33363 384 1416 211 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 2221 1997 782 ROSTELECOM-AS, RU 25019 917 640 308 SAUDINETSTC-AS, SA 49505 854 92 355 SELECTEL, RU 50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 589 37 260 TIMEWEB-AS, RU 9155 430 37 9 QNET Kuwait, KW 42772 374 63 104 A1-BY-AS, BY 50340 347 34 227 SELECTEL-MSK, RU 21299 345 77 62 KAR-TEL-AS Almaty, Republic of Kazakhstan 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 1972 706 254 UNINET, MX 7738 602 1807 67 V tal, BR 8167 342 1089 44 V tal, BR 1916 235 177 40 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 130 10 26 CPS, AR 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11340 110 25 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 543 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 15399 288 35 31 WANANCHI-, KE 36873 198 83 30 VNL1-AS, NG 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 34 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 327885 22 4 2 Viettel-Tanzania, TZ 37326 20 1 5 GICO, SO 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 10148 8753 87 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4145 496 257 BBIL-AP BHARTI Airtel Ltd., IN 24560 2839 847 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2398 332 698 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2229 3095 504 CHARTER-20115, US 12389 2221 1997 782 ROSTELECOM-AS, RU 16509 2199 3549 1256 AMAZON-02, US 4766 2004 6034 928 KIXS-AS-KR Korea Telecom, KR 8151 1972 706 254 UNINET, MX 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 4145 3888 BBIL-AP BHARTI Airtel Ltd., IN 24560 2839 2301 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 20115 2229 1725 CHARTER-20115, US 8151 1972 1718 UNINET, MX 30036 2398 1700 MEDIACOM-ENTERPRISE-BUSINESS, US 45609 1839 1519 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56041 1547 1473 CMNET-ZHEJIANG-AP China Mobile communications c 12389 2221 1439 ROSTELECOM-AS, RU 56047 1491 1438 CMNET-HUNAN-AP China Mobile communications corp 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 269325 UNALLOCATED 45.184.40.0/22 270814 ZAAZ PROVEDOR DE INTERN 269325 UNALLOCATED 45.184.40.0/23 270814 ZAAZ PROVEDOR DE INTERN 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, 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 23.161.8.0/24 Origin: 142433 DATAWAVE-AS-AP DATAWAVE GLOBAL LLC, CN 23.161.8.0/24 Transit: 983 AKARI-NETWORKS, US 45.184.40.0/22 Origin: 269325 RESERVED, ZZ 45.184.40.0/22 Transit: 270814 ZAAZ PROVEDOR DE INTERNET E TELECOMUNICA 45.184.40.0/23 Origin: 269325 RESERVED, ZZ 45.184.40.0/23 Transit: 270814 ZAAZ PROVEDOR DE INTERNET E TELECOMUNICA 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 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 /14:161 /15:398 /16:2525 /17:1342 /18:2793 /19:4432 /20:7573 /21:9221 /22:16962 /23:16304 /24:95559 /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 2082 2398 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1325 2221 ROSTELECOM-AS, RU 11492 1313 1872 CABLEONE, US 8151 1060 1972 UNINET, MX 49505 590 854 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 545 2229 CHARTER-20115, US 36914 519 543 KENET-AS, KE 16509 486 2199 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:194 2:310 3:98 5:1067 6:4 8:61 12:78 13:87 14:331 15:58 16:63 17:312 18:75 20:23 23:715 24:502 25:2 27:563 31:542 32:2 34:3 35:38 36:1344 37:656 38:534 39:691 40:1 41:266 42:146 43:635 44:20 45:2466 46:746 47:63 49:201 50:320 51:138 52:258 54:41 57:29 58:299 59:448 60:95 61:806 62:535 63:130 64:383 65:287 66:301 67:299 68:69 69:252 70:31 71:79 72:244 74:201 75:64 76:56 77:471 78:451 79:236 80:204 81:350 82:361 83:165 84:184 85:340 86:140 87:299 88:100 89:500 90:129 91:1367 92:433 93:928 94:770 95:1450 96:267 97:145 98:72 99:47 101:351 102:108 103:8149 104:378 105:170 106:292 107:115 108:142 109:425 110:233 111:2094 112:886 113:316 114:835 115:304 116:388 117:1346 118:352 119:278 120:1231 121:387 122:1725 123:451 124:353 125:1562 126:1 128:400 129:60 130:131 131:196 132:45 133:304 134:120 135:23 136:80 137:152 138:327 139:225 140:314 141:202 142:81 143:144 144:112 145:101 146:377 147:255 148:351 149:231 150:276 151:502 152:460 153:37 154:885 155:199 156:450 157:284 158:114 159:390 160:649 161:151 162:269 163:296 164:141 165:224 166:60 167:203 168:348 169:79 170:489 171:161 172:221 173:975 174:119 175:542 176:709 177:533 178:687 179:203 180:498 181:182 182:1577 183:1077 184:139 185:2290 186:223 187:469 188:590 189:290 190:513 191:91 192:1818 193:1118 194:918 195:770 196:291 197:517 198:767 199:581 200:756 201:550 202:2370 203:2167 204:287 205:277 206:309 207:316 208:236 209:321 210:1481 211:1139 212:787 213:535 214:10 216:373 217:528 218:796 219:66 220:568 221:357 222:135 223:1046 End of report