IPv4 R&E Routing Table Report 20:30 GMT Fri 21 Feb, 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: 158548 Prefixes after maximum aggregation (per Origin AS): 63837 Deaggregation factor: 2.48 Unique aggregates announced (without unneeded subnets): 90838 Number of IPv4 prefixes with a valid ROA: 85508 Number of IPv4 prefixes with an invalid ROA: 63 Number of IPv4 prefixes with no ROA: 72977 Total ASes present in the Internet Routing Table: 14601 Prefixes per ASN: 10.86 Origin-only ASes present in the Internet Routing Table: 12320 Origin ASes announcing only one prefix: 5910 Transit ASes present in the Internet Routing Table: 2281 Transit-only ASes present in the Internet Routing Table: 515 Paths with bogon ASNs present in the IPv4 Routing Table: 16 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 40 Max AS path prepend of ASN ( 37447) 36 Prefixes from unregistered ASNs in the Routing Table: 53 Number of instances of unregistered ASNs: 70 Number of 32-bit ASNs allocated by the RIRs: 46157 Number of 32-bit ASNs visible in the Routing Table: 7142 Prefixes from 32-bit ASNs in the Routing Table: 29500 Number of bogon 32-bit ASNs visible in the Routing Table: 36 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 44 Number of addresses announced to Internet: 512740096 Equivalent to 30 /8s, 143 /16s and 203 /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: 39098 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 76825 Total APNIC prefixes after maximum aggregation: 25406 APNIC Deaggregation factor: 3.02 Prefixes being announced from the APNIC address blocks: 75102 Unique aggregates announced from the APNIC address blocks: 36770 APNIC Region origin ASes present in the Internet Routing Table: 4861 APNIC Prefixes per ASN: 15.45 APNIC Region origin ASes announcing only one prefix: 1785 APNIC Region transit ASes present in the Internet Routing Table: 723 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3080 Number of APNIC addresses announced to Internet: 191612672 Equivalent to 11 /8s, 107 /16s and 199 /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: 26718 Total ARIN prefixes after maximum aggregation: 14446 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26362 Unique aggregates announced from the ARIN address blocks: 20655 ARIN Region origin ASes present in the Internet Routing Table: 2136 ARIN Prefixes per ASN: 12.34 ARIN Region origin ASes announcing only one prefix: 1015 ARIN Region transit ASes present in the Internet Routing Table: 233 Average ARIN Region AS path length visible: 5.1 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 469 Number of ARIN addresses announced to Internet: 168209920 Equivalent to 10 /8s, 6 /16s and 174 /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: 39818 Total RIPE prefixes after maximum aggregation: 18885 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 40373 Unique aggregates announced from the RIPE address blocks: 25192 RIPE Region origin ASes present in the Internet Routing Table: 4672 RIPE Prefixes per ASN: 8.64 RIPE Region origin ASes announcing only one prefix: 2158 RIPE Region transit ASes present in the Internet Routing Table: 680 Average RIPE Region AS path length visible: 6.3 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1629 Number of RIPE addresses announced to Internet: 125076480 Equivalent to 7 /8s, 116 /16s and 132 /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: 13116 Total LACNIC prefixes after maximum aggregation: 4556 LACNIC Deaggregation factor: 2.88 Prefixes being announced from the LACNIC address blocks: 12907 Unique aggregates announced from the LACNIC address blocks: 6177 LACNIC Region origin ASes present in the Internet Routing Table: 2265 LACNIC Prefixes per ASN: 5.70 LACNIC Region origin ASes announcing only one prefix: 910 LACNIC Region transit ASes present in the Internet Routing Table: 501 Average LACNIC Region AS path length visible: 7.1 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1893 Number of LACNIC addresses announced to Internet: 21125888 Equivalent to 1 /8s, 66 /16s and 91 /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: 2018 Total AfriNIC prefixes after maximum aggregation: 500 AfriNIC Deaggregation factor: 4.04 Prefixes being announced from the AfriNIC address blocks: 3760 Unique aggregates announced from the AfriNIC address blocks: 2008 AfriNIC Region origin ASes present in the Internet Routing Table: 132 AfriNIC Prefixes per ASN: 28.48 AfriNIC Region origin ASes announcing only one prefix: 42 AfriNIC Region transit ASes present in the Internet Routing Table: 41 Average AfriNIC Region AS path length visible: 7.2 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: 6684416 Equivalent to 0 /8s, 101 /16s and 255 /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 10158 8753 87 CHINAMOBILE-CN China Mobile Communication 9498 4155 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2842 854 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2001 6035 934 KIXS-AS-KR Korea Telecom, KR 45609 1795 813 333 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 7552 1633 667 484 VIETEL-AS-AP Viettel Group, VN 56046 1581 804 173 CMNET-JIANGSU-AP China Mobile communicati 56041 1545 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1504 192 53 CMNET-HUNAN-AP China Mobile communication 9919 963 170 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 2431 340 616 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2232 3095 505 CHARTER-20115, US 16509 2169 3517 1243 AMAZON-02, US 11492 1897 131 1025 CABLEONE, US 714 1204 4391 8 APPLE-ENGINEERING, US 8075 712 16017 603 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 640 1940 303 TWC-10796-MIDWEST, US 12083 447 191 84 WOW-INTERNET, US 2152 383 39 259 CENIC-2152, US 33363 383 1416 210 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 2218 1997 787 ROSTELECOM-AS, RU 49505 854 92 355 SELECTEL, RU 25019 764 643 293 SAUDINETSTC-AS, SA 50010 661 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 575 36 256 TIMEWEB-AS, RU 9155 431 37 9 QNET Kuwait, KW 42772 374 63 104 A1-BY-AS, BY 20940 351 3388 44 AKAMAI-ASN1, NL 209242 348 31 313 CLOUDFLARESPECTRUM Cloudflare, Inc., US 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 2439 805 398 UNINET, MX 7738 605 1807 67 V tal, BR 8167 318 1083 46 V tal, BR 1916 236 178 41 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 138 6 9 NORTECH, AR 11014 131 10 26 CPS, AR 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11340 108 9 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 557 82 3 KENET-AS, KE 2018 380 319 71 TENET-1, ZA 36873 198 83 44 VNL1-AS, NG 15399 152 32 34 WANANCHI-, KE 37075 78 248 27 ZAINUGAS, UG 30999 74 25 33 EMTEL-AS-AP, MU 8094 47 48 18 PUKNET, ZA 37315 46 10 5 CipherWave, ZA 37182 36 8 1 TERNET, TZ 37215 34 8 1 MAREN, MW 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 10158 8753 87 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4155 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2842 854 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 8151 2439 805 398 UNINET, MX 30036 2431 340 616 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2232 3095 505 CHARTER-20115, US 12389 2218 1997 787 ROSTELECOM-AS, RU 16509 2169 3517 1243 AMAZON-02, US 4766 2001 6035 934 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 4155 3890 BBIL-AP BHARTI Airtel Ltd., IN 24560 2842 2313 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 8151 2439 2041 UNINET, MX 30036 2431 1815 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2232 1727 CHARTER-20115, US 56041 1545 1471 CMNET-ZHEJIANG-AP China Mobile communications c 45609 1795 1462 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56047 1504 1451 CMNET-HUNAN-AP China Mobile communications corp 12389 2218 1431 ROSTELECOM-AS, RU 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 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 46123 UNALLOCATED 71.46.221.0/24 33363 BHN-33363, 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 45.127.96.0/22 Origin: 55933 CLOUDIE-AS-AP Cloudie Limited, HK 45.127.96.0/22 Transit: 6939 HURRICANE, US 45.252.60.0/22 Origin: 997 KLAYER, US 45.252.60.0/22 Transit: 55933 CLOUDIE-AS-AP Cloudie Limited, HK 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 /13:79 /14:164 /15:401 /16:2536 /17:1385 /18:2804 /19:4427 /20:7670 /21:9382 /22:16944 /23:16288 /24:96390 /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 2115 2431 MEDIACOM-ENTERPRISE-BUSINESS, US 11492 1336 1897 CABLEONE, US 12389 1322 2218 ROSTELECOM-AS, RU 8151 1318 2439 UNINET, MX 49505 590 854 SELECTEL, RU 20115 548 2232 CHARTER-20115, US 50010 548 661 NAWRAS-AS Sultanate of Oman, OM 36914 533 557 KENET-AS, KE 16509 477 2169 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:250 2:314 3:94 5:1063 6:4 8:57 12:82 13:85 14:370 15:57 16:60 17:307 18:76 20:23 23:728 24:502 25:2 27:601 31:532 32:2 34:3 35:37 36:1361 37:569 38:510 39:688 40:1 41:327 42:165 43:654 44:17 45:2419 46:748 47:63 49:203 50:324 51:138 52:259 54:41 57:28 58:288 59:459 60:95 61:810 62:598 63:131 64:396 65:177 66:305 67:317 68:68 69:251 70:32 71:79 72:243 74:197 75:66 76:55 77:498 78:443 79:234 80:247 81:348 82:357 83:186 84:178 85:339 86:137 87:304 88:95 89:510 90:132 91:1412 92:429 93:935 94:687 95:1455 96:272 97:146 98:76 99:47 101:506 102:116 103:7967 104:392 105:181 106:290 107:112 108:136 109:422 110:218 111:2096 112:910 113:357 114:814 115:267 116:363 117:1374 118:366 119:291 120:1232 121:417 122:1787 123:476 124:315 125:1590 126:1 128:391 129:56 130:132 131:198 132:45 133:303 134:160 135:25 136:81 137:153 138:316 139:236 140:312 141:201 142:92 143:158 144:117 145:94 146:376 147:250 148:357 149:237 150:270 151:493 152:461 153:36 154:898 155:167 156:478 157:278 158:131 159:389 160:634 161:143 162:262 163:261 164:147 165:226 166:62 167:199 168:487 169:82 170:553 171:153 172:217 173:987 174:122 175:567 176:692 177:586 178:673 179:217 180:481 181:175 182:1595 183:1068 184:134 185:2296 186:230 187:509 188:624 189:314 190:512 191:109 192:1819 193:1132 194:939 195:789 196:264 197:435 198:748 199:536 200:771 201:620 202:2416 203:2190 204:271 205:270 206:339 207:320 208:240 209:305 210:1509 211:1153 212:814 213:549 214:9 216:382 217:555 218:795 219:68 220:593 221:368 222:131 223:1058 End of report