IPv4 R&E Routing Table Report 20:30 GMT Thu 10 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: 158538 Prefixes after maximum aggregation (per Origin AS): 63402 Deaggregation factor: 2.50 Unique aggregates announced (without unneeded subnets): 90721 Number of IPv4 prefixes with a valid ROA: 87441 Number of IPv4 prefixes with an invalid ROA: 59 Number of IPv4 prefixes with no ROA: 71038 Total ASes present in the Internet Routing Table: 14782 Prefixes per ASN: 10.73 Origin-only ASes present in the Internet Routing Table: 12476 Origin ASes announcing only one prefix: 6010 Transit ASes present in the Internet Routing Table: 2306 Transit-only ASes present in the Internet Routing Table: 517 Paths with bogon ASNs present in the IPv4 Routing Table: 8 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: 87 Number of 32-bit ASNs allocated by the RIRs: 46164 Number of 32-bit ASNs visible in the Routing Table: 7400 Prefixes from 32-bit ASNs in the Routing Table: 30420 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 53 Number of addresses announced to Internet: 503292160 Equivalent to 29 /8s, 255 /16s and 161 /24s Percentage of available address space announced: 13.6 Percentage of allocated address space announced: 13.6 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: 39140 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 77784 Total APNIC prefixes after maximum aggregation: 25271 APNIC Deaggregation factor: 3.08 Prefixes being announced from the APNIC address blocks: 75957 Unique aggregates announced from the APNIC address blocks: 36778 APNIC Region origin ASes present in the Internet Routing Table: 5029 APNIC Prefixes per ASN: 15.10 APNIC Region origin ASes announcing only one prefix: 1866 APNIC Region transit ASes present in the Internet Routing Table: 745 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3270 Number of APNIC addresses announced to Internet: 189820160 Equivalent to 11 /8s, 80 /16s and 109 /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: 26640 Total ARIN prefixes after maximum aggregation: 14356 ARIN Deaggregation factor: 1.86 Prefixes being announced from the ARIN address blocks: 26335 Unique aggregates announced from the ARIN address blocks: 20242 ARIN Region origin ASes present in the Internet Routing Table: 2071 ARIN Prefixes per ASN: 12.72 ARIN Region origin ASes announcing only one prefix: 980 ARIN Region transit ASes present in the Internet Routing Table: 227 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: 468 Number of ARIN addresses announced to Internet: 164325632 Equivalent to 9 /8s, 203 /16s and 105 /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: 39695 Total RIPE prefixes after maximum aggregation: 18770 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 40534 Unique aggregates announced from the RIPE address blocks: 25784 RIPE Region origin ASes present in the Internet Routing Table: 4728 RIPE Prefixes per ASN: 8.57 RIPE Region origin ASes announcing only one prefix: 2177 RIPE Region transit ASes present in the Internet Routing Table: 700 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: 1656 Number of RIPE addresses announced to Internet: 124904704 Equivalent to 7 /8s, 113 /16s and 229 /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: 12604 Total LACNIC prefixes after maximum aggregation: 4514 LACNIC Deaggregation factor: 2.79 Prefixes being announced from the LACNIC address blocks: 12023 Unique aggregates announced from the LACNIC address blocks: 5903 LACNIC Region origin ASes present in the Internet Routing Table: 2283 LACNIC Prefixes per ASN: 5.27 LACNIC Region origin ASes announcing only one prefix: 935 LACNIC Region transit ASes present in the Internet Routing Table: 493 Average LACNIC Region AS path length visible: 7.3 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1933 Number of LACNIC addresses announced to Internet: 18469888 Equivalent to 1 /8s, 25 /16s and 212 /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: 1733 Total AfriNIC prefixes after maximum aggregation: 432 AfriNIC Deaggregation factor: 4.01 Prefixes being announced from the AfriNIC address blocks: 3636 Unique aggregates announced from the AfriNIC address blocks: 1979 AfriNIC Region origin ASes present in the Internet Routing Table: 131 AfriNIC Prefixes per ASN: 27.76 AfriNIC Region origin ASes announcing only one prefix: 52 AfriNIC Region transit ASes present in the Internet Routing Table: 41 Average AfriNIC Region AS path length visible: 7.1 Max AfriNIC Region AS path length visible: 44 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 73 Number of AfriNIC addresses announced to Internet: 5739776 Equivalent to 0 /8s, 87 /16s and 149 /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 10129 8753 88 CHINAMOBILE-CN China Mobile Communication 9498 4159 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2852 849 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2254 1084 454 VIETEL-AS-AP Viettel Group, VN 4766 2024 6035 948 KIXS-AS-KR Korea Telecom, KR 45609 1837 824 321 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1593 812 181 CMNET-JIANGSU-AP China Mobile communicati 56041 1547 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 2394 332 683 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2228 3095 507 CHARTER-20115, US 16509 2199 3545 1262 AMAZON-02, US 11492 1882 130 1028 CABLEONE, US 714 1210 4391 8 APPLE-ENGINEERING, US 8075 739 16019 624 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 640 1944 302 TWC-10796-MIDWEST, US 12083 575 192 88 WOW-INTERNET, US 2152 387 40 263 CENIC-2152, US 33363 385 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 2304 1997 781 ROSTELECOM-AS, RU 25019 921 639 324 SAUDINETSTC-AS, SA 49505 858 92 355 SELECTEL, RU 50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 608 38 271 TIMEWEB-AS, RU 9155 426 37 9 QNET Kuwait, KW 42772 373 63 104 A1-BY-AS, BY 209242 342 31 307 CLOUDFLARESPECTRUM Cloudflare, Inc., US 20940 341 3388 43 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 1879 684 243 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 109 9 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 551 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 36873 200 83 32 VNL1-AS, NG 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 15399 24 2 16 WANANCHI-, KE 37531 19 2 15 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 10129 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 2852 849 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2394 332 683 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2304 1997 781 ROSTELECOM-AS, RU 7552 2254 1084 454 VIETEL-AS-AP Viettel Group, VN 20115 2228 3095 507 CHARTER-20115, US 16509 2199 3545 1262 AMAZON-02, US 4766 2024 6035 948 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 2852 2315 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 7552 2254 1800 VIETEL-AS-AP Viettel Group, VN 20115 2228 1721 CHARTER-20115, US 30036 2394 1711 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 1879 1636 UNINET, MX 12389 2304 1523 ROSTELECOM-AS, RU 45609 1837 1516 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56041 1547 1473 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 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 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 /14:164 /15:395 /16:2442 /17:1329 /18:2811 /19:4421 /20:7593 /21:9388 /22:17173 /23:16284 /24:96378 /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 2078 2394 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1400 2304 ROSTELECOM-AS, RU 11492 1314 1882 CABLEONE, US 8151 1032 1879 UNINET, MX 49505 594 858 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 545 2228 CHARTER-20115, US 36914 527 551 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) ---------------------------------------------- 1:203 2:330 3:100 5:1077 8:61 12:82 13:87 14:389 15:58 16:63 17:312 18:72 20:28 23:729 24:591 25:2 27:613 31:547 32:2 34:3 35:37 36:1350 37:635 38:523 39:690 40:1 41:251 42:146 43:671 44:19 45:2505 46:777 47:62 49:206 50:321 51:138 52:257 54:41 57:27 58:302 59:454 60:95 61:815 62:564 63:129 64:382 65:287 66:300 67:302 68:69 69:267 70:34 71:81 72:246 74:203 75:69 76:62 77:496 78:445 79:237 80:227 81:352 82:359 83:184 84:189 85:369 86:142 87:301 88:110 89:494 90:131 91:1404 92:436 93:941 94:789 95:1453 96:264 97:145 98:73 99:47 101:470 102:150 103:8202 104:375 105:180 106:293 107:115 108:142 109:438 110:229 111:2096 112:923 113:318 114:803 115:310 116:423 117:1329 118:411 119:287 120:1227 121:417 122:1755 123:454 124:330 125:1583 126:6 128:403 129:63 130:126 131:189 132:46 133:304 134:132 135:23 136:79 137:162 138:320 139:230 140:313 141:192 142:78 143:171 144:116 145:135 146:376 147:250 148:355 149:231 150:258 151:497 152:462 153:37 154:952 155:196 156:475 157:282 158:130 159:395 160:663 161:148 162:268 163:307 164:147 165:223 166:57 167:184 168:340 169:80 170:501 171:198 172:218 173:968 174:118 175:564 176:724 177:585 178:686 179:209 180:492 181:165 182:1559 183:1066 184:138 185:2312 186:199 187:469 188:622 189:294 190:486 191:95 192:1722 193:1133 194:932 195:779 196:250 197:394 198:712 199:496 200:763 201:543 202:2467 203:2120 204:265 205:268 206:301 207:323 208:235 209:321 210:1369 211:1143 212:808 213:542 214:2 216:383 217:548 218:801 219:68 220:566 221:355 222:134 223:1051 End of report