IPv4 R&E Routing Table Report 20:30 GMT Sun 27 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: 159358 Prefixes after maximum aggregation (per Origin AS): 63893 Deaggregation factor: 2.49 Unique aggregates announced (without unneeded subnets): 91126 Number of IPv4 prefixes with a valid ROA: 87772 Number of IPv4 prefixes with an invalid ROA: 61 Number of IPv4 prefixes with no ROA: 71525 Total ASes present in the Internet Routing Table: 14763 Prefixes per ASN: 10.79 Origin-only ASes present in the Internet Routing Table: 12495 Origin ASes announcing only one prefix: 6050 Transit ASes present in the Internet Routing Table: 2268 Transit-only ASes present in the Internet Routing Table: 509 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: 45 Max AS path prepend of ASN (212940) 40 Prefixes from unregistered ASNs in the Routing Table: 87 Number of instances of unregistered ASNs: 87 Number of 32-bit ASNs allocated by the RIRs: 46291 Number of 32-bit ASNs visible in the Routing Table: 7322 Prefixes from 32-bit ASNs in the Routing Table: 30016 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: 65 Number of addresses announced to Internet: 506033920 Equivalent to 30 /8s, 41 /16s and 119 /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: 39262 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78308 Total APNIC prefixes after maximum aggregation: 25411 APNIC Deaggregation factor: 3.08 Prefixes being announced from the APNIC address blocks: 76557 Unique aggregates announced from the APNIC address blocks: 37154 APNIC Region origin ASes present in the Internet Routing Table: 5038 APNIC Prefixes per ASN: 15.20 APNIC Region origin ASes announcing only one prefix: 1882 APNIC Region transit ASes present in the Internet Routing Table: 735 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: 3248 Number of APNIC addresses announced to Internet: 189239552 Equivalent to 11 /8s, 71 /16s and 145 /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: 26971 Total ARIN prefixes after maximum aggregation: 14676 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26841 Unique aggregates announced from the ARIN address blocks: 20728 ARIN Region origin ASes present in the Internet Routing Table: 2154 ARIN Prefixes per ASN: 12.46 ARIN Region origin ASes announcing only one prefix: 1013 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: 476 Number of ARIN addresses announced to Internet: 167808768 Equivalent to 10 /8s, 0 /16s and 143 /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: 39931 Total RIPE prefixes after maximum aggregation: 18844 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 40775 Unique aggregates announced from the RIPE address blocks: 25610 RIPE Region origin ASes present in the Internet Routing Table: 4661 RIPE Prefixes per ASN: 8.75 RIPE Region origin ASes announcing only one prefix: 2150 RIPE Region transit ASes present in the Internet Routing Table: 676 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: 1643 Number of RIPE addresses announced to Internet: 124952320 Equivalent to 7 /8s, 114 /16s and 159 /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: 12246 Total LACNIC prefixes after maximum aggregation: 4437 LACNIC Deaggregation factor: 2.76 Prefixes being announced from the LACNIC address blocks: 11665 Unique aggregates announced from the LACNIC address blocks: 5680 LACNIC Region origin ASes present in the Internet Routing Table: 2248 LACNIC Prefixes per ASN: 5.19 LACNIC Region origin ASes announcing only one prefix: 955 LACNIC Region transit ASes present in the Internet Routing Table: 481 Average LACNIC Region AS path length visible: 7.5 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1883 Number of LACNIC addresses announced to Internet: 18324992 Equivalent to 1 /8s, 23 /16s and 158 /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: 1815 Total AfriNIC prefixes after maximum aggregation: 462 AfriNIC Deaggregation factor: 3.93 Prefixes being announced from the AfriNIC address blocks: 3455 Unique aggregates announced from the AfriNIC address blocks: 1920 AfriNIC Region origin ASes present in the Internet Routing Table: 127 AfriNIC Prefixes per ASN: 27.20 AfriNIC Region origin ASes announcing only one prefix: 50 AfriNIC Region transit ASes present in the Internet Routing Table: 41 Average AfriNIC Region AS path length visible: 7.5 Max AfriNIC Region AS path length visible: 28 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 72 Number of AfriNIC addresses announced to Internet: 5676544 Equivalent to 0 /8s, 86 /16s and 158 /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 10278 8754 92 CHINAMOBILE-CN China Mobile Communication 9498 4175 498 268 BBIL-AP BHARTI Airtel Ltd., IN 24560 2858 851 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2256 1085 454 VIETEL-AS-AP Viettel Group, VN 4766 2038 6037 957 KIXS-AS-KR Korea Telecom, KR 45609 1849 827 321 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1630 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 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 2410 335 669 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 3097 506 CHARTER-20115, US 16509 2234 3628 1275 AMAZON-02, US 11492 1892 131 1031 CABLEONE, US 714 1225 4391 8 APPLE-ENGINEERING, US 8075 750 16020 634 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1912 301 TWC-10796-MIDWEST, US 12083 576 192 88 WOW-INTERNET, US 2152 396 44 265 CENIC-2152, US 33363 386 1424 214 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 780 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 915 639 329 SAUDINETSTC-AS, SA 49505 859 92 356 SELECTEL, RU 9123 617 39 275 TIMEWEB-AS, RU 50010 617 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 479 179 177 KAZTELECOM-AS, KZ 9155 426 37 9 QNET Kuwait, KW 21299 423 77 60 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 1857 676 242 UNINET, MX 7738 595 1775 65 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 551 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 36873 198 83 30 VNL1-AS, NG 15399 95 8 44 WANANCHI-, KE 30999 74 25 32 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 23 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 10278 8754 92 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4175 498 268 BBIL-AP BHARTI Airtel Ltd., IN 24560 2858 851 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2410 335 669 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2305 1997 780 ROSTELECOM-AS PJSC Rostelecom. Technical 7552 2256 1085 454 VIETEL-AS-AP Viettel Group, VN 20115 2235 3097 506 CHARTER-20115, US 16509 2234 3628 1275 AMAZON-02, US 4766 2038 6037 957 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 4175 3907 BBIL-AP BHARTI Airtel Ltd., IN 24560 2858 2320 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 7552 2256 1802 VIETEL-AS-AP Viettel Group, VN 30036 2410 1741 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 1729 CHARTER-20115, US 8151 1857 1615 UNINET, MX 45609 1849 1528 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 12389 2305 1525 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 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 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 /16:2482 /17:1331 /18:2808 /19:4408 /20:7635 /21:9437 /22:17342 /23:16430 /24:96762 /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 2094 2410 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1400 2305 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1314 1892 CABLEONE, US 8151 1024 1857 UNINET, MX 49505 595 859 SELECTEL, RU 20115 551 2235 CHARTER-20115, US 36914 527 551 KENET-AS, KE 50010 515 617 NAWRAS-AS Sultanate of Oman, OM 9123 500 617 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 2:327 3:102 5:1097 8:63 12:80 13:87 14:391 15:58 16:63 17:316 18:72 20:28 23:732 24:593 25:2 27:615 31:527 32:2 34:3 35:37 36:1441 37:645 38:517 39:700 40:1 41:253 42:144 43:671 44:22 45:2412 46:776 47:63 49:207 50:319 51:138 52:257 54:62 57:28 58:301 59:452 60:95 61:816 62:560 63:128 64:383 65:287 66:306 67:305 68:70 69:269 70:32 71:82 72:245 74:210 75:68 76:62 77:490 78:453 79:241 80:211 81:354 82:379 83:187 84:192 85:383 86:144 87:310 88:106 89:479 90:133 91:1401 92:456 93:925 94:778 95:1479 96:266 97:146 98:71 99:47 101:464 102:148 103:8101 104:376 105:179 106:287 107:109 108:142 109:461 110:231 111:2100 112:929 113:314 114:815 115:310 116:406 117:1390 118:415 119:283 120:1240 121:418 122:1754 123:455 124:328 125:1584 126:6 128:401 129:66 130:128 131:198 132:49 133:303 134:161 135:25 136:78 137:165 138:319 139:233 140:315 141:191 142:79 143:159 144:120 145:138 146:376 147:259 148:363 149:214 150:271 151:513 152:460 153:37 154:791 155:203 156:454 157:289 158:129 159:394 160:680 161:151 162:277 163:320 164:147 165:219 166:43 167:192 168:337 169:79 170:482 171:198 172:216 173:978 174:119 175:568 176:722 177:505 178:675 179:188 180:457 181:141 182:1584 183:1062 184:137 185:2311 186:216 187:465 188:596 189:294 190:453 191:97 192:1857 193:1129 194:932 195:770 196:286 197:410 198:763 199:558 200:772 201:528 202:2495 203:2240 204:290 205:270 206:305 207:324 208:240 209:307 210:1472 211:1147 212:764 213:529 214:1 216:398 217:565 218:807 219:65 220:569 221:360 222:135 223:1087 End of report