IPv4 R&E Routing Table Report 20:30 GMT Sun 24 Aug, 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: 165404 Prefixes after maximum aggregation (per Origin AS): 62735 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 90855 Number of IPv4 prefixes with a valid ROA: 91974 Number of IPv4 prefixes with an invalid ROA: 59 Number of IPv4 prefixes with no ROA: 73371 Total ASes present in the Internet Routing Table: 14452 Prefixes per ASN: 11.45 Origin-only ASes present in the Internet Routing Table: 12221 Origin ASes announcing only one prefix: 5966 Transit ASes present in the Internet Routing Table: 2231 Transit-only ASes present in the Internet Routing Table: 513 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 53 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 75 Number of instances of unregistered ASNs: 75 Number of 32-bit ASNs allocated by the RIRs: 47270 Number of 32-bit ASNs visible in the Routing Table: 7146 Prefixes from 32-bit ASNs in the Routing Table: 29604 Number of bogon 32-bit ASNs visible in the Routing Table: 2 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 23 Number of addresses announced to Internet: 482397952 Equivalent to 28 /8s, 192 /16s and 207 /24s Percentage of available address space announced: 13.0 Percentage of allocated address space announced: 13.0 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: 41037 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 83124 Total APNIC prefixes after maximum aggregation: 23780 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 81440 Unique aggregates announced from the APNIC address blocks: 35407 APNIC Region origin ASes present in the Internet Routing Table: 4747 APNIC Prefixes per ASN: 17.16 APNIC Region origin ASes announcing only one prefix: 1751 APNIC Region transit ASes present in the Internet Routing Table: 719 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3100 Number of APNIC addresses announced to Internet: 185176576 Equivalent to 11 /8s, 9 /16s and 146 /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: 26547 Total ARIN prefixes after maximum aggregation: 14304 ARIN Deaggregation factor: 1.86 Prefixes being announced from the ARIN address blocks: 25935 Unique aggregates announced from the ARIN address blocks: 20966 ARIN Region origin ASes present in the Internet Routing Table: 2091 ARIN Prefixes per ASN: 12.40 ARIN Region origin ASes announcing only one prefix: 1000 ARIN Region transit ASes present in the Internet Routing Table: 216 Average ARIN Region AS path length visible: 5.0 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 482 Number of ARIN addresses announced to Internet: 149282560 Equivalent to 8 /8s, 229 /16s and 223 /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: 42135 Total RIPE prefixes after maximum aggregation: 20033 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 43214 Unique aggregates announced from the RIPE address blocks: 27199 RIPE Region origin ASes present in the Internet Routing Table: 4891 RIPE Prefixes per ASN: 8.84 RIPE Region origin ASes announcing only one prefix: 2290 RIPE Region transit ASes present in the Internet Routing Table: 704 Average RIPE Region AS path length visible: 6.2 Max RIPE Region AS path length visible: 50 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1770 Number of RIPE addresses announced to Internet: 125165568 Equivalent to 7 /8s, 117 /16s and 224 /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: 12103 Total LACNIC prefixes after maximum aggregation: 4201 LACNIC Deaggregation factor: 2.88 Prefixes being announced from the LACNIC address blocks: 11747 Unique aggregates announced from the LACNIC address blocks: 5591 LACNIC Region origin ASes present in the Internet Routing Table: 2085 LACNIC Prefixes per ASN: 5.63 LACNIC Region origin ASes announcing only one prefix: 881 LACNIC Region transit ASes present in the Internet Routing Table: 460 Average LACNIC Region AS path length visible: 7.1 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1738 Number of LACNIC addresses announced to Internet: 17719040 Equivalent to 1 /8s, 14 /16s and 95 /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: 1420 Total AfriNIC prefixes after maximum aggregation: 362 AfriNIC Deaggregation factor: 3.92 Prefixes being announced from the AfriNIC address blocks: 3045 Unique aggregates announced from the AfriNIC address blocks: 1669 AfriNIC Region origin ASes present in the Internet Routing Table: 103 AfriNIC Prefixes per ASN: 29.56 AfriNIC Region origin ASes announcing only one prefix: 44 AfriNIC Region transit ASes present in the Internet Routing Table: 31 Average AfriNIC Region AS path length visible: 7.3 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 56 Number of AfriNIC addresses announced to Internet: 5038336 Equivalent to 0 /8s, 76 /16s and 225 /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 12741 8761 117 CHINAMOBILE-CN China Mobile Communication 9498 4401 502 303 BBIL-AP BHARTI Airtel Ltd., IN 7552 3088 1179 269 VIETEL-AS-AP Viettel Group, VN 24560 2919 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2918 812 179 CMNET-JIANGSU-AP China Mobile communicati 45609 1954 844 342 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 4766 1924 6027 908 KIXS-AS-KR Korea Telecom, KR 56047 1690 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1678 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 9919 971 169 63 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 2501 347 616 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2353 3794 1372 AMAZON-02, US 20115 2237 3095 521 CHARTER-20115, US 11492 1915 133 1046 CABLEONE, US 714 1253 4391 8 APPLE-ENGINEERING, US 8075 812 16025 677 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 635 1879 297 TWC-10796-MIDWEST, US 12083 550 192 88 WOW-INTERNET, US 2152 441 49 278 CENIC-2152, US 33363 381 1424 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 4180 255 53 ALJAWWALSTC-AS, SA 12389 2977 2202 943 ROSTELECOM-AS PJSC Rostelecom. Technical 49505 946 100 398 SELECTEL, RU 25019 883 609 383 SAUDINETSTC-AS, SA 9123 680 43 307 TIMEWEB-AS, RU 9198 651 256 230 KAZTELECOM-AS, KZ 50010 498 72 10 NAWRAS-AS Sultanate of Oman, OM 5416 431 30 9 Internet Service Provider, BH 9155 429 37 9 QNET Kuwait, KW 21299 428 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 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 2442 708 246 UNINET, MX 8167 342 1089 44 V tal, BR 7738 295 927 70 V tal, BR 1916 240 177 41 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 262287 149 25 125 Latitude.sh LTDA, BR 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 123 10 26 CPS, AR 11340 110 9 50 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 461 82 3 KENET-AS, KE 2018 374 318 69 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 23889 55 37 31 MauritiusTelecom, MU 10798 54 3 36 SBICSA, ZA 8094 47 48 18 PUKNET, ZA 37215 40 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 327885 19 4 3 Viettel-Tanzania, TZ 37326 17 1 2 GICO, SO 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 12741 8761 117 CHINAMOBILE-CN China Mobile Communication 9498 4401 502 303 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 7552 3088 1179 269 VIETEL-AS-AP Viettel Group, VN 12389 2977 2202 943 ROSTELECOM-AS PJSC Rostelecom. Technical 24560 2919 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2918 812 179 CMNET-JIANGSU-AP China Mobile communicati 30036 2501 347 616 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 2442 708 246 UNINET, MX 16509 2353 3794 1372 AMAZON-02, US 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 4180 4127 ALJAWWALSTC-AS, SA 9498 4401 4098 BBIL-AP BHARTI Airtel Ltd., IN 7552 3088 2819 VIETEL-AS-AP Viettel Group, VN 56046 2918 2739 CMNET-JIANGSU-AP China Mobile communications co 24560 2919 2418 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 8151 2442 2196 UNINET, MX 12389 2977 2034 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 30036 2501 1885 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2237 1716 CHARTER-20115, US 56047 1690 1640 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 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 46123 UNALLOCATED 71.46.221.0/24 33363 BHN-33363, US 395888 UNALLOCATED 71.92.235.0/24 33588 BRESNAN-33588, 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 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 103.83.18.0/24 Origin: 133457 SSB-AS-AP ScopeTel Sdn Bhd, MY 103.83.18.0/24 Transit: 136400 ACG-AFG-AS-AP Asia Consultancy Group, AF 103.96.76.0/24 Origin: 132238 AHSL-AS-AP Array Health, NZ 103.96.76.0/24 Transit: 17981 CAMBOTECH-KH-AS Cambo TechnologyISP Co., 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 /10:12 /11:11 /12:45 /13:78 /14:152 /15:378 /16:2350 /17:1291 /18:2659 /19:4430 /20:7718 /21:10677 /22:17613 /23:16718 /24:101269 /25:0 /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 4180 ALJAWWALSTC-AS, SA 30036 2182 2501 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1895 2977 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 8151 1345 2442 UNINET, MX 11492 1319 1915 CABLEONE, US 49505 663 946 SELECTEL, RU 9123 554 680 TIMEWEB-AS, RU 20115 547 2237 CHARTER-20115, US 16509 500 2353 AMAZON-02, US 36914 448 461 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:242 2:303 3:120 5:1128 8:78 12:76 13:97 14:436 15:59 16:61 17:336 18:75 20:28 23:642 24:592 25:2 27:599 31:578 32:2 34:3 35:55 36:3204 37:662 38:536 39:749 40:1 41:178 42:109 43:636 44:18 45:2306 46:809 47:66 49:214 50:341 51:136 52:257 54:68 57:23 58:239 59:549 60:102 61:789 62:584 63:128 64:396 65:291 66:354 67:330 68:66 69:264 70:41 71:78 72:246 74:222 75:66 76:62 77:519 78:454 79:256 80:234 81:337 82:421 83:196 84:203 85:479 86:130 87:339 88:140 89:501 90:138 91:1441 92:455 93:966 94:892 95:1551 96:264 97:146 98:70 99:45 101:505 102:95 103:7728 104:334 105:9 106:297 107:143 108:171 109:558 110:260 111:2471 112:1315 113:298 114:885 115:300 116:384 117:1456 118:275 119:234 120:1566 121:378 122:1928 123:625 124:317 125:1631 126:4 128:389 129:69 130:110 131:183 132:55 133:312 134:113 135:25 136:82 137:175 138:293 139:136 140:312 141:158 142:80 143:153 144:133 145:140 146:360 147:245 148:358 149:214 150:227 151:568 152:465 153:44 154:799 155:209 156:560 157:260 158:124 159:389 160:635 161:160 162:278 163:355 164:157 165:253 166:54 167:151 168:314 169:69 170:448 171:223 172:184 173:1004 174:112 175:497 176:761 177:492 178:720 179:163 180:452 181:178 182:1651 183:1403 184:103 185:2410 186:218 187:652 188:793 189:343 190:419 191:99 192:1753 193:1178 194:973 195:830 196:300 197:392 198:752 199:521 200:774 201:592 202:2429 203:1932 204:272 205:264 206:313 207:348 208:238 209:325 210:1365 211:1175 212:837 213:549 216:396 217:597 218:858 219:51 220:577 221:523 222:126 223:1562 End of report