IPv4 R&E Routing Table Report 20:30 GMT Thu 17 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: 159110 Prefixes after maximum aggregation (per Origin AS): 64061 Deaggregation factor: 2.48 Unique aggregates announced (without unneeded subnets): 90978 Number of IPv4 prefixes with a valid ROA: 87566 Number of IPv4 prefixes with an invalid ROA: 67 Number of IPv4 prefixes with no ROA: 71477 Total ASes present in the Internet Routing Table: 14683 Prefixes per ASN: 10.84 Origin-only ASes present in the Internet Routing Table: 12442 Origin ASes announcing only one prefix: 5992 Transit ASes present in the Internet Routing Table: 2241 Transit-only ASes present in the Internet Routing Table: 477 Paths with bogon ASNs present in the IPv4 Routing Table: 4 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: 82 Number of instances of unregistered ASNs: 82 Number of 32-bit ASNs allocated by the RIRs: 46228 Number of 32-bit ASNs visible in the Routing Table: 7312 Prefixes from 32-bit ASNs in the Routing Table: 30095 Number of bogon 32-bit ASNs visible in the Routing Table: 8 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 51 Number of addresses announced to Internet: 506523136 Equivalent to 30 /8s, 48 /16s and 238 /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: 39018 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78411 Total APNIC prefixes after maximum aggregation: 25517 APNIC Deaggregation factor: 3.07 Prefixes being announced from the APNIC address blocks: 76657 Unique aggregates announced from the APNIC address blocks: 37371 APNIC Region origin ASes present in the Internet Routing Table: 5029 APNIC Prefixes per ASN: 15.24 APNIC Region origin ASes announcing only one prefix: 1862 APNIC Region transit ASes present in the Internet Routing Table: 739 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: 3228 Number of APNIC addresses announced to Internet: 190036736 Equivalent to 11 /8s, 83 /16s and 187 /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: 26586 Total ARIN prefixes after maximum aggregation: 14714 ARIN Deaggregation factor: 1.81 Prefixes being announced from the ARIN address blocks: 26399 Unique aggregates announced from the ARIN address blocks: 20279 ARIN Region origin ASes present in the Internet Routing Table: 2079 ARIN Prefixes per ASN: 12.70 ARIN Region origin ASes announcing only one prefix: 972 ARIN Region transit ASes present in the Internet Routing Table: 196 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 453 Number of ARIN addresses announced to Internet: 167316224 Equivalent to 9 /8s, 249 /16s and 11 /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: 39682 Total RIPE prefixes after maximum aggregation: 18762 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 40556 Unique aggregates announced from the RIPE address blocks: 25445 RIPE Region origin ASes present in the Internet Routing Table: 4665 RIPE Prefixes per ASN: 8.69 RIPE Region origin ASes announcing only one prefix: 2159 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: 1639 Number of RIPE addresses announced to Internet: 124955648 Equivalent to 7 /8s, 114 /16s and 172 /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: 12491 Total LACNIC prefixes after maximum aggregation: 4528 LACNIC Deaggregation factor: 2.76 Prefixes being announced from the LACNIC address blocks: 11904 Unique aggregates announced from the LACNIC address blocks: 5827 LACNIC Region origin ASes present in the Internet Routing Table: 2279 LACNIC Prefixes per ASN: 5.22 LACNIC Region origin ASes announcing only one prefix: 948 LACNIC Region transit ASes present in the Internet Routing Table: 486 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 25 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1917 Number of LACNIC addresses announced to Internet: 18489600 Equivalent to 1 /8s, 26 /16s and 33 /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: 1858 Total AfriNIC prefixes after maximum aggregation: 482 AfriNIC Deaggregation factor: 3.85 Prefixes being announced from the AfriNIC address blocks: 3543 Unique aggregates announced from the AfriNIC address blocks: 2023 AfriNIC Region origin ASes present in the Internet Routing Table: 131 AfriNIC Prefixes per ASN: 27.05 AfriNIC Region origin ASes announcing only one prefix: 51 AfriNIC Region transit ASes present in the Internet Routing Table: 40 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: 75 Number of AfriNIC addresses announced to Internet: 5693440 Equivalent to 0 /8s, 86 /16s and 224 /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 10171 8753 88 CHINAMOBILE-CN China Mobile Communication 9498 4159 497 265 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 1839 824 325 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 1484 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 2255 310 859 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 3097 506 CHARTER-20115, US 16509 2207 3546 1265 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 383 1416 212 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 2309 1997 781 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 608 38 271 TIMEWEB-AS, RU 9198 471 176 189 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 1869 679 244 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 550 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 36873 200 83 32 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 10171 8753 88 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4159 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2856 850 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 12389 2309 1997 781 ROSTELECOM-AS PJSC Rostelecom. Technical 7552 2255 1085 454 VIETEL-AS-AP Viettel Group, VN 30036 2255 310 859 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 3097 506 CHARTER-20115, US 16509 2207 3546 1265 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 4159 3894 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 20115 2235 1729 CHARTER-20115, US 8151 1869 1625 UNINET, MX 12389 2309 1528 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 45609 1839 1514 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56041 1574 1500 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1484 1431 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 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 /15:395 /16:2482 /17:1329 /18:2819 /19:4419 /20:7644 /21:9424 /22:17310 /23:16413 /24:96548 /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 1956 2255 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1405 2309 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1314 1889 CABLEONE, US 8151 1031 1869 UNINET, MX 49505 594 858 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 551 2235 CHARTER-20115, US 36914 526 550 KENET-AS, KE 9123 491 608 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 2:325 3:102 5:1079 8:59 12:75 13:87 14:385 15:58 16:63 17:315 18:72 20:28 23:724 24:595 25:2 27:621 31:521 32:2 34:3 35:37 36:1348 37:631 38:513 39:698 40:1 41:255 42:147 43:665 44:22 45:2509 46:765 47:63 49:207 50:303 51:138 52:255 54:41 57:28 58:303 59:453 60:95 61:803 62:560 63:124 64:379 65:285 66:297 67:298 68:69 69:267 70:33 71:82 72:238 74:198 75:68 76:62 77:484 78:452 79:246 80:219 81:346 82:390 83:181 84:194 85:375 86:143 87:306 88:103 89:477 90:131 91:1390 92:441 93:921 94:784 95:1468 96:266 97:145 98:72 99:47 101:459 102:167 103:8407 104:361 105:180 106:288 107:113 108:140 109:455 110:229 111:2106 112:922 113:313 114:810 115:307 116:405 117:1391 118:404 119:283 120:1232 121:419 122:1756 123:462 124:358 125:1585 126:6 128:403 129:64 130:127 131:185 132:51 133:304 134:159 135:24 136:78 137:162 138:330 139:229 140:315 141:191 142:80 143:169 144:115 145:134 146:373 147:255 148:355 149:228 150:258 151:498 152:464 153:37 154:804 155:198 156:450 157:283 158:132 159:394 160:661 161:148 162:265 163:310 164:145 165:222 166:49 167:183 168:333 169:79 170:482 171:198 172:214 173:922 174:118 175:566 176:728 177:557 178:666 179:204 180:456 181:164 182:1550 183:1065 184:138 185:2296 186:207 187:472 188:583 189:289 190:483 191:101 192:1812 193:1135 194:923 195:761 196:278 197:409 198:733 199:538 200:760 201:538 202:2502 203:2237 204:287 205:271 206:299 207:311 208:235 209:298 210:1471 211:1143 212:760 213:526 214:2 216:378 217:543 218:804 219:66 220:574 221:360 222:135 223:1062 End of report