IPv4 R&E Routing Table Report 20:30 GMT Wed 07 May, 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: 158843 Prefixes after maximum aggregation (per Origin AS): 63146 Deaggregation factor: 2.52 Unique aggregates announced (without unneeded subnets): 90173 Number of IPv4 prefixes with a valid ROA: 87222 Number of IPv4 prefixes with an invalid ROA: 91 Number of IPv4 prefixes with no ROA: 71530 Total ASes present in the Internet Routing Table: 14590 Prefixes per ASN: 10.89 Origin-only ASes present in the Internet Routing Table: 12337 Origin ASes announcing only one prefix: 5967 Transit ASes present in the Internet Routing Table: 2253 Transit-only ASes present in the Internet Routing Table: 511 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: 47 Max AS path prepend of ASN (212940) 40 Prefixes from unregistered ASNs in the Routing Table: 84 Number of instances of unregistered ASNs: 85 Number of 32-bit ASNs allocated by the RIRs: 46348 Number of 32-bit ASNs visible in the Routing Table: 7187 Prefixes from 32-bit ASNs in the Routing Table: 29331 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: 66 Number of addresses announced to Internet: 506060288 Equivalent to 30 /8s, 41 /16s and 222 /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: 38821 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78402 Total APNIC prefixes after maximum aggregation: 25242 APNIC Deaggregation factor: 3.11 Prefixes being announced from the APNIC address blocks: 76670 Unique aggregates announced from the APNIC address blocks: 37060 APNIC Region origin ASes present in the Internet Routing Table: 4986 APNIC Prefixes per ASN: 15.38 APNIC Region origin ASes announcing only one prefix: 1854 APNIC Region transit ASes present in the Internet Routing Table: 736 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 47 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3206 Number of APNIC addresses announced to Internet: 189078784 Equivalent to 11 /8s, 69 /16s and 29 /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: 27077 Total ARIN prefixes after maximum aggregation: 14661 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26669 Unique aggregates announced from the ARIN address blocks: 20501 ARIN Region origin ASes present in the Internet Routing Table: 2126 ARIN Prefixes per ASN: 12.54 ARIN Region origin ASes announcing only one prefix: 1001 ARIN Region transit ASes present in the Internet Routing Table: 222 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: 465 Number of ARIN addresses announced to Internet: 167691776 Equivalent to 9 /8s, 254 /16s and 198 /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: 39437 Total RIPE prefixes after maximum aggregation: 18357 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 40318 Unique aggregates announced from the RIPE address blocks: 25114 RIPE Region origin ASes present in the Internet Routing Table: 4617 RIPE Prefixes per ASN: 8.73 RIPE Region origin ASes announcing only one prefix: 2139 RIPE Region transit ASes present in the Internet Routing Table: 667 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: 1607 Number of RIPE addresses announced to Internet: 124734208 Equivalent to 7 /8s, 111 /16s and 75 /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: 12059 Total LACNIC prefixes after maximum aggregation: 4392 LACNIC Deaggregation factor: 2.75 Prefixes being announced from the LACNIC address blocks: 11485 Unique aggregates announced from the LACNIC address blocks: 5685 LACNIC Region origin ASes present in the Internet Routing Table: 2196 LACNIC Prefixes per ASN: 5.23 LACNIC Region origin ASes announcing only one prefix: 924 LACNIC Region transit ASes present in the Internet Routing Table: 482 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: 1838 Number of LACNIC addresses announced to Internet: 18266624 Equivalent to 1 /8s, 22 /16s and 186 /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: 1784 Total AfriNIC prefixes after maximum aggregation: 432 AfriNIC Deaggregation factor: 4.13 Prefixes being announced from the AfriNIC address blocks: 3635 Unique aggregates announced from the AfriNIC address blocks: 1779 AfriNIC Region origin ASes present in the Internet Routing Table: 128 AfriNIC Prefixes per ASN: 28.40 AfriNIC Region origin ASes announcing only one prefix: 49 AfriNIC Region transit ASes present in the Internet Routing Table: 38 Average AfriNIC Region AS path length visible: 7.6 Max AfriNIC Region AS path length visible: 28 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 71 Number of AfriNIC addresses announced to Internet: 6257152 Equivalent to 0 /8s, 95 /16s and 122 /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 10474 8754 87 CHINAMOBILE-CN China Mobile Communication 9498 4202 499 283 BBIL-AP BHARTI Airtel Ltd., IN 24560 2863 852 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2244 1083 461 VIETEL-AS-AP Viettel Group, VN 4766 2032 6035 953 KIXS-AS-KR Korea Telecom, KR 45609 1849 826 321 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1688 812 180 CMNET-JIANGSU-AP China Mobile communicati 56041 1575 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication 9919 970 170 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 2404 333 687 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2237 3628 1280 AMAZON-02, US 20115 2237 3097 507 CHARTER-20115, US 11492 1921 133 1044 CABLEONE, US 714 1232 4391 8 APPLE-ENGINEERING, US 8075 751 16020 634 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1912 301 TWC-10796-MIDWEST, US 12083 577 192 88 WOW-INTERNET, US 2152 396 44 265 CENIC-2152, US 33363 386 1422 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 2305 1997 779 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 915 639 328 SAUDINETSTC-AS, SA 49505 859 92 356 SELECTEL, RU 9123 628 39 281 TIMEWEB-AS, RU 50010 616 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 481 180 178 KAZTELECOM-AS, KZ 9155 426 37 9 QNET Kuwait, KW 21299 424 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 42772 373 63 104 A1-BY-AS, BY 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 1692 633 238 UNINET, MX 7738 592 1767 64 V tal, BR 8167 342 1089 44 V tal, BR 1916 240 177 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 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 553 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 36873 198 83 30 VNL1-AS, NG 30999 74 25 32 EMTEL-AS-AP, MU 15399 67 6 24 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 327885 21 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 10474 8754 87 CHINAMOBILE-CN China Mobile Communication 9498 4202 499 283 BBIL-AP BHARTI Airtel Ltd., IN 39891 4179 255 52 ALJAWWALSTC-AS, SA 24560 2863 852 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2404 333 687 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2305 1997 779 ROSTELECOM-AS PJSC Rostelecom. Technical 7552 2244 1083 461 VIETEL-AS-AP Viettel Group, VN 16509 2237 3628 1280 AMAZON-02, US 20115 2237 3097 507 CHARTER-20115, US 4766 2032 6035 953 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 4202 3919 BBIL-AP BHARTI Airtel Ltd., IN 24560 2863 2330 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 7552 2244 1783 VIETEL-AS-AP Viettel Group, VN 20115 2237 1730 CHARTER-20115, US 30036 2404 1717 MEDIACOM-ENTERPRISE-BUSINESS, US 45609 1849 1528 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 12389 2305 1526 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 56046 1688 1508 CMNET-JIANGSU-AP China Mobile communications co 56041 1575 1501 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 268652 UNALLOCATED 45.165.20.0/22 264493 UNASSIGNED 36288 UNALLOCATED 64.79.154.0/24 293 ESNET, US 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, 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 /12:47 /13:82 /14:167 /15:397 /16:2487 /17:1335 /18:2818 /19:4418 /20:7595 /21:9418 /22:17226 /23:16397 /24:96426 /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 2088 2404 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1401 2305 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1326 1921 CABLEONE, US 8151 953 1692 UNINET, MX 49505 595 859 SELECTEL, RU 20115 553 2237 CHARTER-20115, US 36914 529 553 KENET-AS, KE 50010 514 616 NAWRAS-AS Sultanate of Oman, OM 9123 510 628 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 2:321 3:103 5:1093 8:65 12:81 13:88 14:380 15:59 16:63 17:319 18:74 20:28 23:717 24:596 25:2 27:634 31:527 32:2 34:3 35:37 36:1590 37:640 38:517 39:700 40:1 41:249 42:144 43:671 44:19 45:2334 46:774 47:63 49:209 50:318 51:138 52:258 54:62 57:28 58:303 59:451 60:95 61:779 62:553 63:128 64:375 65:286 66:300 67:312 68:71 69:271 70:32 71:84 72:247 74:197 75:66 76:61 77:488 78:452 79:239 80:226 81:341 82:355 83:191 84:185 85:374 86:114 87:310 88:100 89:463 90:133 91:1376 92:452 93:935 94:782 95:1468 96:266 97:146 98:68 99:47 101:457 102:143 103:8014 104:364 105:179 106:288 107:107 108:142 109:456 110:233 111:2114 112:930 113:316 114:814 115:298 116:405 117:1391 118:413 119:253 120:1247 121:416 122:1752 123:521 124:329 125:1585 126:6 128:401 129:67 130:126 131:219 132:51 133:303 134:163 135:24 136:79 137:167 138:312 139:224 140:316 141:186 142:77 143:161 144:121 145:135 146:373 147:256 148:354 149:200 150:261 151:516 152:452 153:37 154:940 155:189 156:468 157:280 158:127 159:394 160:671 161:147 162:269 163:300 164:146 165:219 166:44 167:189 168:339 169:76 170:468 171:197 172:215 173:970 174:118 175:563 176:722 177:507 178:691 179:181 180:473 181:130 182:1602 183:1063 184:138 185:2238 186:213 187:457 188:594 189:269 190:470 191:93 192:1851 193:1132 194:916 195:766 196:286 197:382 198:761 199:559 200:783 201:504 202:2487 203:2252 204:286 205:268 206:306 207:320 208:242 209:311 210:1464 211:1147 212:757 213:515 214:2 216:371 217:558 218:804 219:66 220:568 221:388 222:134 223:1088 End of report