IPv4 R&E Routing Table Report 20:30 GMT Sat 19 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: 159338 Prefixes after maximum aggregation (per Origin AS): 63895 Deaggregation factor: 2.49 Unique aggregates announced (without unneeded subnets): 91089 Number of IPv4 prefixes with a valid ROA: 87632 Number of IPv4 prefixes with an invalid ROA: 61 Number of IPv4 prefixes with no ROA: 71645 Total ASes present in the Internet Routing Table: 14832 Prefixes per ASN: 10.74 Origin-only ASes present in the Internet Routing Table: 12549 Origin ASes announcing only one prefix: 6054 Transit ASes present in the Internet Routing Table: 2283 Transit-only ASes present in the Internet Routing Table: 504 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: 46245 Number of 32-bit ASNs visible in the Routing Table: 7389 Prefixes from 32-bit ASNs in the Routing Table: 30374 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: 64 Number of addresses announced to Internet: 506926592 Equivalent to 30 /8s, 55 /16s and 22 /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: 39241 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78162 Total APNIC prefixes after maximum aggregation: 25404 APNIC Deaggregation factor: 3.08 Prefixes being announced from the APNIC address blocks: 76453 Unique aggregates announced from the APNIC address blocks: 37162 APNIC Region origin ASes present in the Internet Routing Table: 5047 APNIC Prefixes per ASN: 15.15 APNIC Region origin ASes announcing only one prefix: 1876 APNIC Region transit ASes present in the Internet Routing Table: 742 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: 3248 Number of APNIC addresses announced to Internet: 189997056 Equivalent to 11 /8s, 83 /16s and 32 /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: 26893 Total ARIN prefixes after maximum aggregation: 14617 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26705 Unique aggregates announced from the ARIN address blocks: 20580 ARIN Region origin ASes present in the Internet Routing Table: 2137 ARIN Prefixes per ASN: 12.50 ARIN Region origin ASes announcing only one prefix: 1004 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: 470 Number of ARIN addresses announced to Internet: 167651328 Equivalent to 9 /8s, 254 /16s and 40 /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: 39776 Total RIPE prefixes after maximum aggregation: 18792 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 40644 Unique aggregates announced from the RIPE address blocks: 25509 RIPE Region origin ASes present in the Internet Routing Table: 4678 RIPE Prefixes per ASN: 8.69 RIPE Region origin ASes announcing only one prefix: 2166 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: 1646 Number of RIPE addresses announced to Internet: 125092864 Equivalent to 7 /8s, 116 /16s and 196 /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: 12682 Total LACNIC prefixes after maximum aggregation: 4585 LACNIC Deaggregation factor: 2.77 Prefixes being announced from the LACNIC address blocks: 12084 Unique aggregates announced from the LACNIC address blocks: 5907 LACNIC Region origin ASes present in the Internet Routing Table: 2317 LACNIC Prefixes per ASN: 5.22 LACNIC Region origin ASes announcing only one prefix: 960 LACNIC Region transit ASes present in the Internet Routing Table: 498 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 29 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1952 Number of LACNIC addresses announced to Internet: 18524928 Equivalent to 1 /8s, 26 /16s and 171 /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: 1748 Total AfriNIC prefixes after maximum aggregation: 443 AfriNIC Deaggregation factor: 3.95 Prefixes being announced from the AfriNIC address blocks: 3388 Unique aggregates announced from the AfriNIC address blocks: 1898 AfriNIC Region origin ASes present in the Internet Routing Table: 127 AfriNIC Prefixes per ASN: 26.68 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: 73 Number of AfriNIC addresses announced to Internet: 5628928 Equivalent to 0 /8s, 85 /16s and 228 /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 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 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 2401 333 675 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 749 16020 633 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 473 176 189 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 1867 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 540 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 36873 198 83 30 VNL1-AS, NG 30999 74 25 30 EMTEL-AS-AP, MU 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 15399 39 3 30 WANANCHI-, KE 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 4159 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2856 850 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2401 333 675 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 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 30036 2401 1726 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 1867 1623 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 23.138.4.0/24 Origin: 16509 AMAZON-02, US 23.138.4.0/24 Transit: 23855 SINGAREN-GIX-AS-AP Singapore Advanced Re 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 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 /16:2481 /17:1330 /18:2817 /19:4421 /20:7613 /21:9447 /22:17378 /23:16485 /24:96642 /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 2085 2401 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1400 2304 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1314 1889 CABLEONE, US 8151 1031 1867 UNINET, MX 49505 594 858 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 551 2235 CHARTER-20115, US 36914 516 540 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 31:521 32:2 34:3 35:37 36:1347 37:632 38:523 39:699 40:1 41:248 42:147 43:668 44:22 45:2517 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 66:299 67:302 68:69 69:268 70:33 71:82 72:246 74:203 75:68 76:62 77:477 78:453 79:246 80:222 81:350 82:389 83:185 84:194 85:376 86:143 87:304 88:103 89:480 90:133 91:1394 92:438 93:917 94:784 95:1468 96:266 97:146 98:72 99:47 101:462 102:133 103:8176 104:381 105:180 106:287 107:114 108:142 109:455 110:230 111:2102 112:926 113:312 114:811 115:308 116:406 117:1390 118:415 119:282 120:1232 121:419 122:1756 123:461 124:329 125:1585 126:6 128:403 129:64 130:126 131:204 132:51 133:304 134:160 135:24 136:79 137:162 138:335 139:230 140:317 141:189 142:79 143:169 144:119 145:133 146:377 147:257 148:357 149:234 150:267 151:498 152:468 153:37 154:779 155:199 156:453 157:285 158:131 159:394 160:679 161:148 162:277 163:312 164:145 165:223 166:49 167:188 168:353 169:79 170:487 171:198 172:214 173:972 174:118 175:566 176:729 177:558 178:666 179:203 180:456 181:166 182:1554 183:1063 184:138 185:2295 186:208 187:474 188:582 189:294 190:478 191:102 192:1839 193:1135 194:923 195:772 196:243 197:402 198:748 199:554 200:766 201:544 202:2489 203:2237 204:289 205:270 206:300 207:326 208:242 209:314 210:1472 211:1144 212:781 213:527 214:2 216:383 217:552 218:805 219:65 220:573 221:359 222:135 223:1063 End of report