IPv4 R&E Routing Table Report 20:30 GMT Tue 15 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: 159743 Prefixes after maximum aggregation (per Origin AS): 64172 Deaggregation factor: 2.49 Unique aggregates announced (without unneeded subnets): 91464 Number of IPv4 prefixes with a valid ROA: 87822 Number of IPv4 prefixes with an invalid ROA: 61 Number of IPv4 prefixes with no ROA: 71860 Total ASes present in the Internet Routing Table: 14810 Prefixes per ASN: 10.79 Origin-only ASes present in the Internet Routing Table: 12530 Origin ASes announcing only one prefix: 6016 Transit ASes present in the Internet Routing Table: 2280 Transit-only ASes present in the Internet Routing Table: 514 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: 51 Max AS path prepend of ASN ( 37447) 47 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: 46194 Number of 32-bit ASNs visible in the Routing Table: 7373 Prefixes from 32-bit ASNs in the Routing Table: 30352 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: 50 Number of addresses announced to Internet: 506583040 Equivalent to 30 /8s, 49 /16s and 216 /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: 39449 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78302 Total APNIC prefixes after maximum aggregation: 25538 APNIC Deaggregation factor: 3.07 Prefixes being announced from the APNIC address blocks: 76482 Unique aggregates announced from the APNIC address blocks: 37169 APNIC Region origin ASes present in the Internet Routing Table: 5050 APNIC Prefixes per ASN: 15.14 APNIC Region origin ASes announcing only one prefix: 1869 APNIC Region transit ASes present in the Internet Routing Table: 741 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: 3256 Number of APNIC addresses announced to Internet: 190093312 Equivalent to 11 /8s, 84 /16s and 152 /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: 27020 Total ARIN prefixes after maximum aggregation: 14701 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26726 Unique aggregates announced from the ARIN address blocks: 20583 ARIN Region origin ASes present in the Internet Routing Table: 2139 ARIN Prefixes per ASN: 12.49 ARIN Region origin ASes announcing only one prefix: 1002 ARIN Region transit ASes present in the Internet Routing Table: 231 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: 473 Number of ARIN addresses announced to Internet: 167707136 Equivalent to 9 /8s, 255 /16s and 2 /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: 39820 Total RIPE prefixes after maximum aggregation: 18858 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 40663 Unique aggregates announced from the RIPE address blocks: 25661 RIPE Region origin ASes present in the Internet Routing Table: 4672 RIPE Prefixes per ASN: 8.70 RIPE Region origin ASes announcing only one prefix: 2162 RIPE Region transit ASes present in the Internet Routing Table: 680 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: 1645 Number of RIPE addresses announced to Internet: 124518656 Equivalent to 7 /8s, 108 /16s and 1 /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: 12558 Total LACNIC prefixes after maximum aggregation: 4514 LACNIC Deaggregation factor: 2.78 Prefixes being announced from the LACNIC address blocks: 11966 Unique aggregates announced from the LACNIC address blocks: 5835 LACNIC Region origin ASes present in the Internet Routing Table: 2276 LACNIC Prefixes per ASN: 5.26 LACNIC Region origin ASes announcing only one prefix: 925 LACNIC Region transit ASes present in the Internet Routing Table: 492 Average LACNIC Region AS path length visible: 7.5 Max LACNIC Region AS path length visible: 29 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1923 Number of LACNIC addresses announced to Internet: 18468096 Equivalent to 1 /8s, 25 /16s and 205 /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: 1961 Total AfriNIC prefixes after maximum aggregation: 503 AfriNIC Deaggregation factor: 3.90 Prefixes being announced from the AfriNIC address blocks: 3856 Unique aggregates announced from the AfriNIC address blocks: 2184 AfriNIC Region origin ASes present in the Internet Routing Table: 136 AfriNIC Prefixes per ASN: 28.35 AfriNIC Region origin ASes announcing only one prefix: 58 AfriNIC Region transit ASes present in the Internet Routing Table: 44 Average AfriNIC Region AS path length visible: 7.4 Max AfriNIC Region AS path length visible: 51 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 76 Number of AfriNIC addresses announced to Internet: 5764608 Equivalent to 0 /8s, 87 /16s and 246 /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 10172 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 2027 6036 948 KIXS-AS-KR Korea Telecom, KR 45609 1837 824 321 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1594 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 2381 331 730 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2234 3096 507 CHARTER-20115, US 16509 2202 3546 1263 AMAZON-02, US 11492 1888 131 1030 CABLEONE, US 714 1220 4391 8 APPLE-ENGINEERING, US 8075 745 16019 629 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 640 1944 302 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 2305 1997 781 ROSTELECOM-AS, RU 25019 917 639 325 SAUDINETSTC-AS, SA 49505 857 92 355 SELECTEL, RU 50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 607 38 271 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 9198 346 137 231 KAZTELECOM-AS, KZ 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 545 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 15399 224 21 82 WANANCHI-, KE 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 327885 22 4 3 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 10172 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 2381 331 730 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2305 1997 781 ROSTELECOM-AS, RU 7552 2255 1085 454 VIETEL-AS-AP Viettel Group, VN 20115 2234 3096 507 CHARTER-20115, US 16509 2202 3546 1263 AMAZON-02, US 4766 2027 6036 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 2856 2319 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 7552 2255 1801 VIETEL-AS-AP Viettel Group, VN 20115 2234 1727 CHARTER-20115, US 30036 2381 1651 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 1869 1625 UNINET, MX 12389 2305 1524 ROSTELECOM-AS, RU 45609 1837 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 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 /14:166 /15:395 /16:2482 /17:1326 /18:2818 /19:4417 /20:7602 /21:9427 /22:17271 /23:16512 /24:97167 /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 2066 2381 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1401 2305 ROSTELECOM-AS, RU 11492 1314 1888 CABLEONE, US 8151 1031 1869 UNINET, MX 49505 593 857 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 551 2234 CHARTER-20115, US 36914 521 545 KENET-AS, KE 9123 490 607 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 2:328 3:102 5:1083 8:60 12:82 13:87 14:390 15:58 16:63 17:314 18:72 20:28 23:724 24:593 25:2 27:608 31:523 32:2 34:3 35:37 36:1344 37:636 38:539 39:696 40:1 41:256 42:147 43:664 44:23 45:2535 46:765 47:62 49:207 50:315 51:138 52:257 54:41 57:28 58:305 59:454 60:95 61:812 62:562 63:128 64:381 65:287 66:300 67:302 68:69 69:268 70:34 71:82 72:246 74:205 75:68 76:62 77:499 78:452 79:245 80:236 81:350 82:385 83:184 84:193 85:376 86:141 87:303 88:106 89:492 90:131 91:1406 92:442 93:940 94:791 95:1475 96:266 97:146 98:72 99:47 101:463 102:162 103:8221 104:384 105:180 106:287 107:114 108:142 109:454 110:229 111:2097 112:921 113:313 114:811 115:306 116:404 117:1388 118:401 119:280 120:1233 121:419 122:1756 123:463 124:329 125:1585 126:6 128:404 129:64 130:126 131:206 132:51 133:304 134:160 135:24 136:79 137:164 138:324 139:231 140:315 141:196 142:80 143:172 144:117 145:134 146:375 147:255 148:356 149:232 150:259 151:495 152:464 153:37 154:951 155:196 156:486 157:283 158:129 159:394 160:661 161:146 162:272 163:305 164:145 165:223 166:52 167:186 168:345 169:79 170:488 171:198 172:214 173:964 174:118 175:567 176:719 177:537 178:685 179:207 180:460 181:166 182:1552 183:1064 184:138 185:2306 186:203 187:467 188:620 189:305 190:484 191:97 192:1839 193:1136 194:925 195:776 196:262 197:489 198:752 199:559 200:767 201:540 202:2508 203:2245 204:286 205:271 206:303 207:326 208:240 209:316 210:1486 211:1143 212:780 213:522 214:2 216:386 217:571 218:804 219:66 220:574 221:360 222:135 223:1064 End of report