IPv4 R&E Routing Table Report 20:30 GMT Fri 04 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: 158395 Prefixes after maximum aggregation (per Origin AS): 64210 Deaggregation factor: 2.47 Unique aggregates announced (without unneeded subnets): 91207 Number of IPv4 prefixes with a valid ROA: 86259 Number of IPv4 prefixes with an invalid ROA: 63 Number of IPv4 prefixes with no ROA: 72073 Total ASes present in the Internet Routing Table: 14852 Prefixes per ASN: 10.66 Origin-only ASes present in the Internet Routing Table: 12557 Origin ASes announcing only one prefix: 6048 Transit ASes present in the Internet Routing Table: 2295 Transit-only ASes present in the Internet Routing Table: 517 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: 85 Number of 32-bit ASNs allocated by the RIRs: 46151 Number of 32-bit ASNs visible in the Routing Table: 7363 Prefixes from 32-bit ASNs in the Routing Table: 30172 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: 53 Number of addresses announced to Internet: 509370368 Equivalent to 30 /8s, 92 /16s and 96 /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: 38971 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 77318 Total APNIC prefixes after maximum aggregation: 25583 APNIC Deaggregation factor: 3.02 Prefixes being announced from the APNIC address blocks: 75518 Unique aggregates announced from the APNIC address blocks: 37035 APNIC Region origin ASes present in the Internet Routing Table: 5055 APNIC Prefixes per ASN: 14.94 APNIC Region origin ASes announcing only one prefix: 1881 APNIC Region transit ASes present in the Internet Routing Table: 732 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: 3259 Number of APNIC addresses announced to Internet: 189112320 Equivalent to 11 /8s, 69 /16s and 160 /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: 27197 Total ARIN prefixes after maximum aggregation: 14869 ARIN Deaggregation factor: 1.83 Prefixes being announced from the ARIN address blocks: 26826 Unique aggregates announced from the ARIN address blocks: 20785 ARIN Region origin ASes present in the Internet Routing Table: 2164 ARIN Prefixes per ASN: 12.40 ARIN Region origin ASes announcing only one prefix: 1016 ARIN Region transit ASes present in the Internet Routing Table: 233 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: 479 Number of ARIN addresses announced to Internet: 171459584 Equivalent to 10 /8s, 56 /16s and 68 /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: 39721 Total RIPE prefixes after maximum aggregation: 18911 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 40535 Unique aggregates announced from the RIPE address blocks: 25651 RIPE Region origin ASes present in the Internet Routing Table: 4730 RIPE Prefixes per ASN: 8.57 RIPE Region origin ASes announcing only one prefix: 2183 RIPE Region transit ASes present in the Internet Routing Table: 706 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: 1667 Number of RIPE addresses announced to Internet: 124884736 Equivalent to 7 /8s, 113 /16s and 151 /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: 12400 Total LACNIC prefixes after maximum aggregation: 4372 LACNIC Deaggregation factor: 2.84 Prefixes being announced from the LACNIC address blocks: 11893 Unique aggregates announced from the LACNIC address blocks: 5773 LACNIC Region origin ASes present in the Internet Routing Table: 2232 LACNIC Prefixes per ASN: 5.33 LACNIC Region origin ASes announcing only one prefix: 919 LACNIC Region transit ASes present in the Internet Routing Table: 483 Average LACNIC Region AS path length visible: 7.6 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1883 Number of LACNIC addresses announced to Internet: 18320640 Equivalent to 1 /8s, 23 /16s and 141 /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: 1677 Total AfriNIC prefixes after maximum aggregation: 416 AfriNIC Deaggregation factor: 4.03 Prefixes being announced from the AfriNIC address blocks: 3570 Unique aggregates announced from the AfriNIC address blocks: 1928 AfriNIC Region origin ASes present in the Internet Routing Table: 131 AfriNIC Prefixes per ASN: 27.25 AfriNIC Region origin ASes announcing only one prefix: 49 AfriNIC Region transit ASes present in the Internet Routing Table: 39 Average AfriNIC Region AS path length visible: 7.7 Max AfriNIC Region AS path length visible: 40 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 75 Number of AfriNIC addresses announced to Internet: 5561088 Equivalent to 0 /8s, 84 /16s and 219 /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 10133 8753 88 CHINAMOBILE-CN China Mobile Communication 9498 4157 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2847 849 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2017 6035 941 KIXS-AS-KR Korea Telecom, KR 45609 1837 824 321 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 7552 1763 689 528 VIETEL-AS-AP Viettel Group, VN 56046 1592 812 181 CMNET-JIANGSU-AP China Mobile communicati 56041 1547 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1480 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 2390 332 694 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2230 3096 505 CHARTER-20115, US 16509 2203 3549 1263 AMAZON-02, US 11492 1880 130 1027 CABLEONE, US 714 1209 4391 8 APPLE-ENGINEERING, US 8075 733 16019 619 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 640 1944 302 TWC-10796-MIDWEST, US 12083 440 191 84 WOW-INTERNET, US 2152 387 40 263 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 2309 1997 789 ROSTELECOM-AS, RU 25019 914 639 321 SAUDINETSTC-AS, SA 49505 856 92 355 SELECTEL, RU 50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 598 37 262 TIMEWEB-AS, RU 9155 426 37 9 QNET Kuwait, KW 42772 373 63 104 A1-BY-AS, BY 50340 347 34 227 SELECTEL-MSK, RU 209242 342 31 307 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 1900 689 251 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 218 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 547 82 3 KENET-AS, KE 2018 372 318 69 TENET-1, ZA 36873 198 83 30 VNL1-AS, NG 15399 52 5 28 WANANCHI-, KE 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 19 2 15 AIRTEL-NIGER, NE 327885 16 4 2 Viettel-Tanzania, TZ 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 10133 8753 88 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4157 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2847 849 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2390 332 694 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2309 1997 789 ROSTELECOM-AS, RU 20115 2230 3096 505 CHARTER-20115, US 16509 2203 3549 1263 AMAZON-02, US 4766 2017 6035 941 KIXS-AS-KR Korea Telecom, KR 8151 1900 689 251 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 4157 3892 BBIL-AP BHARTI Airtel Ltd., IN 24560 2847 2311 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 20115 2230 1725 CHARTER-20115, US 30036 2390 1696 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 1900 1649 UNINET, MX 12389 2309 1520 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 56047 1480 1427 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 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 23.161.8.0/24 Origin: 142433 DATAWAVE-AS-AP DATAWAVE GLOBAL LLC, CN 23.161.8.0/24 Transit: 983 AKARI-NETWORKS, US 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 /13:80 /14:161 /15:397 /16:2524 /17:1342 /18:2800 /19:4442 /20:7588 /21:9213 /22:17022 /23:16439 /24:96309 /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 2074 2390 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1406 2309 ROSTELECOM-AS, RU 11492 1314 1880 CABLEONE, US 8151 1038 1900 UNINET, MX 49505 592 856 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 545 2230 CHARTER-20115, US 36914 523 547 KENET-AS, KE 16509 487 2203 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:197 2:330 3:100 5:1076 6:4 8:61 12:82 13:87 14:380 15:58 16:63 17:312 18:72 20:28 23:725 24:496 25:2 27:594 31:535 32:2 34:3 35:38 36:1348 37:635 38:538 39:692 40:1 41:242 42:143 43:668 44:18 45:2453 46:784 47:63 49:198 50:321 51:138 52:257 54:41 57:28 58:300 59:451 60:95 61:814 62:562 63:129 64:383 65:285 66:300 67:303 68:68 69:254 70:34 71:76 72:244 74:201 75:64 76:57 77:493 78:453 79:232 80:233 81:353 82:386 83:181 84:181 85:369 86:143 87:301 88:110 89:510 90:132 91:1380 92:411 93:941 94:782 95:1454 96:264 97:145 98:71 99:47 101:465 102:151 103:8130 104:377 105:170 106:291 107:115 108:142 109:434 110:230 111:2095 112:919 113:316 114:843 115:301 116:396 117:1352 118:360 119:281 120:1223 121:416 122:1739 123:453 124:330 125:1569 126:3 128:401 129:63 130:125 131:213 132:47 133:304 134:166 135:23 136:80 137:162 138:310 139:225 140:318 141:189 142:80 143:168 144:115 145:133 146:376 147:252 148:358 149:218 150:275 151:493 152:465 153:37 154:929 155:198 156:473 157:285 158:131 159:391 160:667 161:155 162:268 163:305 164:145 165:224 166:52 167:194 168:345 169:81 170:489 171:162 172:217 173:968 174:118 175:563 176:712 177:555 178:673 179:223 180:495 181:157 182:1561 183:1055 184:139 185:2272 186:209 187:465 188:626 189:290 190:493 191:88 192:1864 193:1129 194:917 195:771 196:234 197:394 198:772 199:585 200:762 201:543 202:2456 203:2199 204:289 205:276 206:309 207:321 208:238 209:320 210:1470 211:1144 212:790 213:535 214:10 216:380 217:549 218:800 219:64 220:570 221:355 222:135 223:1053 End of report