IPv4 R&E Routing Table Report 20:30 GMT Tue 13 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: 157461 Prefixes after maximum aggregation (per Origin AS): 62226 Deaggregation factor: 2.53 Unique aggregates announced (without unneeded subnets): 88676 Number of IPv4 prefixes with a valid ROA: 86692 Number of IPv4 prefixes with an invalid ROA: 83 Number of IPv4 prefixes with no ROA: 70686 Total ASes present in the Internet Routing Table: 14486 Prefixes per ASN: 10.87 Origin-only ASes present in the Internet Routing Table: 12246 Origin ASes announcing only one prefix: 5947 Transit ASes present in the Internet Routing Table: 2240 Transit-only ASes present in the Internet Routing Table: 516 Paths with bogon ASNs present in the IPv4 Routing Table: 5 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: 81 Number of instances of unregistered ASNs: 93 Number of 32-bit ASNs allocated by the RIRs: 46406 Number of 32-bit ASNs visible in the Routing Table: 7161 Prefixes from 32-bit ASNs in the Routing Table: 28846 Number of bogon 32-bit ASNs visible in the Routing Table: 26 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 62 Number of addresses announced to Internet: 504327424 Equivalent to 30 /8s, 15 /16s and 109 /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: 38183 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78282 Total APNIC prefixes after maximum aggregation: 24929 APNIC Deaggregation factor: 3.14 Prefixes being announced from the APNIC address blocks: 76686 Unique aggregates announced from the APNIC address blocks: 36723 APNIC Region origin ASes present in the Internet Routing Table: 4982 APNIC Prefixes per ASN: 15.39 APNIC Region origin ASes announcing only one prefix: 1871 APNIC Region transit ASes present in the Internet Routing Table: 731 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: 3193 Number of APNIC addresses announced to Internet: 188876800 Equivalent to 11 /8s, 66 /16s and 8 /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: 26358 Total ARIN prefixes after maximum aggregation: 14370 ARIN Deaggregation factor: 1.83 Prefixes being announced from the ARIN address blocks: 25884 Unique aggregates announced from the ARIN address blocks: 19923 ARIN Region origin ASes present in the Internet Routing Table: 2082 ARIN Prefixes per ASN: 12.43 ARIN Region origin ASes announcing only one prefix: 988 ARIN Region transit ASes present in the Internet Routing Table: 221 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: 454 Number of ARIN addresses announced to Internet: 166927872 Equivalent to 9 /8s, 243 /16s and 30 /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: 39073 Total RIPE prefixes after maximum aggregation: 18135 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 39992 Unique aggregates announced from the RIPE address blocks: 24818 RIPE Region origin ASes present in the Internet Routing Table: 4569 RIPE Prefixes per ASN: 8.75 RIPE Region origin ASes announcing only one prefix: 2117 RIPE Region transit ASes present in the Internet Routing Table: 665 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: 1596 Number of RIPE addresses announced to Internet: 124417280 Equivalent to 7 /8s, 106 /16s and 117 /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: 12138 Total LACNIC prefixes after maximum aggregation: 4364 LACNIC Deaggregation factor: 2.78 Prefixes being announced from the LACNIC address blocks: 11575 Unique aggregates announced from the LACNIC address blocks: 5635 LACNIC Region origin ASes present in the Internet Routing Table: 2216 LACNIC Prefixes per ASN: 5.22 LACNIC Region origin ASes announcing only one prefix: 932 LACNIC Region transit ASes present in the Internet Routing Table: 486 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1868 Number of LACNIC addresses announced to Internet: 18225152 Equivalent to 1 /8s, 22 /16s and 24 /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: 1529 Total AfriNIC prefixes after maximum aggregation: 367 AfriNIC Deaggregation factor: 4.17 Prefixes being announced from the AfriNIC address blocks: 3262 Unique aggregates announced from the AfriNIC address blocks: 1547 AfriNIC Region origin ASes present in the Internet Routing Table: 97 AfriNIC Prefixes per ASN: 33.63 AfriNIC Region origin ASes announcing only one prefix: 39 AfriNIC Region transit ASes present in the Internet Routing Table: 30 Average AfriNIC Region AS path length visible: 7.1 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 50 Number of AfriNIC addresses announced to Internet: 5850368 Equivalent to 0 /8s, 89 /16s and 69 /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 10738 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4214 500 291 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2244 1083 461 VIETEL-AS-AP Viettel Group, VN 4766 2017 6034 953 KIXS-AS-KR Korea Telecom, KR 45609 1853 828 322 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1708 812 180 CMNET-JIANGSU-AP China Mobile communicati 56041 1575 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1485 192 53 CMNET-HUNAN-AP China Mobile communication 9919 968 170 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 2407 334 682 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2236 3097 514 CHARTER-20115, US 16509 2235 3628 1279 AMAZON-02, US 11492 1927 134 1046 CABLEONE, US 714 1233 4391 8 APPLE-ENGINEERING, US 8075 752 16020 635 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1912 301 TWC-10796-MIDWEST, US 12083 575 192 88 WOW-INTERNET, US 2152 394 44 268 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 1999 780 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 918 639 330 SAUDINETSTC-AS, SA 49505 860 92 356 SELECTEL, RU 9123 632 40 282 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 1851 671 239 UNINET, MX 7738 577 1719 61 V tal, BR 8167 342 1089 44 V tal, BR 1916 241 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 219 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 127 10 26 CPS, AR 19089 107 18 45 Scala Data Centers, BR 11340 101 24 47 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 553 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 15399 71 6 26 WANANCHI-, KE 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 36 8 1 MAREN, MW 10798 29 2 23 SBICSA, ZA 6879 24 2 9 ENSTINET-, EG 327885 20 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 10738 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4214 500 291 BBIL-AP BHARTI Airtel Ltd., IN 39891 4179 255 52 ALJAWWALSTC-AS, SA 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2407 334 682 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2305 1999 780 ROSTELECOM-AS PJSC Rostelecom. Technical 7552 2244 1083 461 VIETEL-AS-AP Viettel Group, VN 20115 2236 3097 514 CHARTER-20115, US 16509 2235 3628 1279 AMAZON-02, US 4766 2017 6034 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 4214 3923 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 2331 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 7552 2244 1783 VIETEL-AS-AP Viettel Group, VN 30036 2407 1725 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2236 1722 CHARTER-20115, US 8151 1851 1612 UNINET, MX 45609 1853 1531 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56046 1708 1528 CMNET-JIANGSU-AP China Mobile communications co 12389 2305 1525 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 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 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 23.161.8.0/24 Origin: 142433 DATAWAVE-AS-AP DATAWAVE GLOBAL LLC, CN 23.161.8.0/24 Transit: 983 AKARI-NETWORKS, US 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 /15:396 /16:2476 /17:1328 /18:2793 /19:4413 /20:7590 /21:9513 /22:17281 /23:16362 /24:94983 /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 2091 2407 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1400 2305 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1326 1927 CABLEONE, US 8151 1029 1851 UNINET, MX 49505 596 860 SELECTEL, RU 20115 552 2236 CHARTER-20115, US 36914 529 553 KENET-AS, KE 9123 514 632 TIMEWEB-AS, RU 50010 514 616 NAWRAS-AS Sultanate of Oman, OM Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:163 2:322 3:103 5:1089 8:71 12:81 13:89 14:386 15:58 16:63 17:321 18:74 20:28 23:707 24:595 25:2 27:624 31:528 32:2 34:3 35:37 36:1715 37:633 38:505 39:703 40:1 41:246 42:134 43:670 44:23 45:2304 46:785 47:63 49:206 50:319 51:138 52:258 54:62 57:28 58:300 59:451 60:95 61:778 62:546 63:115 64:352 65:279 66:268 67:289 68:65 69:254 70:32 71:84 72:228 74:194 75:66 76:62 77:483 78:449 79:234 80:222 81:342 82:349 83:189 84:185 85:369 86:114 87:306 88:100 89:458 90:133 91:1386 92:440 93:925 94:780 95:1453 96:266 97:147 98:68 99:47 101:460 102:115 103:7928 104:355 105:9 106:289 107:108 108:146 109:468 110:229 111:2141 112:933 113:299 114:825 115:307 116:412 117:1396 118:363 119:251 120:1287 121:407 122:1706 123:389 124:327 125:1583 126:6 128:382 129:66 130:126 131:202 132:50 133:303 134:163 135:24 136:79 137:166 138:330 139:223 140:316 141:176 142:77 143:156 144:122 145:136 146:365 147:255 148:352 149:189 150:226 151:519 152:455 153:37 154:897 155:189 156:438 157:281 158:127 159:357 160:629 161:116 162:229 163:305 164:142 165:220 166:44 167:176 168:332 169:69 170:463 171:194 172:211 173:972 174:119 175:552 176:716 177:468 178:678 179:175 180:479 181:138 182:1604 183:1120 184:131 185:2195 186:218 187:479 188:588 189:299 190:462 191:81 192:1841 193:1115 194:892 195:760 196:297 197:371 198:696 199:488 200:767 201:501 202:2487 203:2223 204:271 205:225 206:281 207:317 208:234 209:261 210:1456 211:1149 212:742 213:518 214:2 216:340 217:525 218:803 219:63 220:568 221:389 222:134 223:1098 End of report