IPv4 R&E Routing Table Report 20:30 GMT Wed 20 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: 164007 Prefixes after maximum aggregation (per Origin AS): 62226 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 90114 Number of IPv4 prefixes with a valid ROA: 90829 Number of IPv4 prefixes with an invalid ROA: 56 Number of IPv4 prefixes with no ROA: 73122 Total ASes present in the Internet Routing Table: 14454 Prefixes per ASN: 11.35 Origin-only ASes present in the Internet Routing Table: 12213 Origin ASes announcing only one prefix: 5975 Transit ASes present in the Internet Routing Table: 2241 Transit-only ASes present in the Internet Routing Table: 531 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: 76 Number of instances of unregistered ASNs: 76 Number of 32-bit ASNs allocated by the RIRs: 47227 Number of 32-bit ASNs visible in the Routing Table: 7129 Prefixes from 32-bit ASNs in the Routing Table: 28962 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: 24 Number of addresses announced to Internet: 482024192 Equivalent to 28 /8s, 187 /16s and 27 /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: 40639 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 82645 Total APNIC prefixes after maximum aggregation: 23575 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 81190 Unique aggregates announced from the APNIC address blocks: 35241 APNIC Region origin ASes present in the Internet Routing Table: 4758 APNIC Prefixes per ASN: 17.06 APNIC Region origin ASes announcing only one prefix: 1753 APNIC Region transit ASes present in the Internet Routing Table: 729 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 40 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3107 Number of APNIC addresses announced to Internet: 185006592 Equivalent to 11 /8s, 6 /16s and 250 /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: 26534 Total ARIN prefixes after maximum aggregation: 14342 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 25812 Unique aggregates announced from the ARIN address blocks: 20880 ARIN Region origin ASes present in the Internet Routing Table: 2093 ARIN Prefixes per ASN: 12.33 ARIN Region origin ASes announcing only one prefix: 1001 ARIN Region transit ASes present in the Internet Routing Table: 214 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: 484 Number of ARIN addresses announced to Internet: 149133824 Equivalent to 8 /8s, 227 /16s and 154 /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: 41615 Total RIPE prefixes after maximum aggregation: 19722 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 42876 Unique aggregates announced from the RIPE address blocks: 26861 RIPE Region origin ASes present in the Internet Routing Table: 4873 RIPE Prefixes per ASN: 8.80 RIPE Region origin ASes announcing only one prefix: 2277 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: 1760 Number of RIPE addresses announced to Internet: 124906240 Equivalent to 7 /8s, 113 /16s and 235 /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: 11593 Total LACNIC prefixes after maximum aggregation: 4163 LACNIC Deaggregation factor: 2.78 Prefixes being announced from the LACNIC address blocks: 11241 Unique aggregates announced from the LACNIC address blocks: 5718 LACNIC Region origin ASes present in the Internet Routing Table: 2071 LACNIC Prefixes per ASN: 5.43 LACNIC Region origin ASes announcing only one prefix: 900 LACNIC Region transit ASes present in the Internet Routing Table: 461 Average LACNIC Region AS path length visible: 7.2 Max LACNIC Region AS path length visible: 26 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1721 Number of LACNIC addresses announced to Internet: 17580288 Equivalent to 1 /8s, 12 /16s and 65 /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: 1544 Total AfriNIC prefixes after maximum aggregation: 368 AfriNIC Deaggregation factor: 4.20 Prefixes being announced from the AfriNIC address blocks: 2864 Unique aggregates announced from the AfriNIC address blocks: 1391 AfriNIC Region origin ASes present in the Internet Routing Table: 105 AfriNIC Prefixes per ASN: 27.28 AfriNIC Region origin ASes announcing only one prefix: 44 AfriNIC Region transit ASes present in the Internet Routing Table: 30 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 57 Number of AfriNIC addresses announced to Internet: 5381376 Equivalent to 0 /8s, 82 /16s and 29 /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 12709 8761 117 CHINAMOBILE-CN China Mobile Communication 9498 4398 502 303 BBIL-AP BHARTI Airtel Ltd., IN 7552 3072 1175 263 VIETEL-AS-AP Viettel Group, VN 24560 2919 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2915 812 179 CMNET-JIANGSU-AP China Mobile communicati 45609 1950 843 341 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 4766 1929 6027 913 KIXS-AS-KR Korea Telecom, KR 56047 1690 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1676 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 9919 969 169 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 2495 346 618 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2353 3795 1375 AMAZON-02, US 20115 2239 3095 523 CHARTER-20115, US 11492 1915 133 1046 CABLEONE, US 714 1253 4391 8 APPLE-ENGINEERING, US 8075 811 16025 676 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 635 1879 297 TWC-10796-MIDWEST, US 12083 550 192 88 WOW-INTERNET, US 2152 436 49 276 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 941 ROSTELECOM-AS PJSC Rostelecom. Technical 49505 946 100 398 SELECTEL, RU 25019 883 608 382 SAUDINETSTC-AS, SA 9123 679 42 307 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 2145 660 265 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 575 82 3 KENET-AS, KE 2018 375 318 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 38 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 327885 20 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 12709 8761 117 CHINAMOBILE-CN China Mobile Communication 9498 4398 502 303 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 7552 3072 1175 263 VIETEL-AS-AP Viettel Group, VN 12389 2977 2202 941 ROSTELECOM-AS PJSC Rostelecom. Technical 24560 2919 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2915 812 179 CMNET-JIANGSU-AP China Mobile communicati 30036 2495 346 618 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2353 3795 1375 AMAZON-02, US 20115 2239 3095 523 CHARTER-20115, 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 4398 4095 BBIL-AP BHARTI Airtel Ltd., IN 7552 3072 2809 VIETEL-AS-AP Viettel Group, VN 56046 2915 2736 CMNET-JIANGSU-AP China Mobile communications co 24560 2919 2418 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 12389 2977 2036 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 8151 2145 1880 UNINET, MX 30036 2495 1877 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2239 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 397409 UNALLOCATED 23.171.200.0/24 6939 HURRICANE, US 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 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 23.171.200.0/24 Origin: 397409 RESERVED, ZZ 23.171.200.0/24 Transit: 6939 HURRICANE, 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 103.83.18.0/24 Origin: 133457 SSB-AS-AP ScopeTel Sdn Bhd, MY 103.83.18.0/24 Transit: 136400 ACG-AFG-AS-AP Asia Consultancy Group, AF 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 /16:2358 /17:1296 /18:2660 /19:4377 /20:7710 /21:10558 /22:17498 /23:16578 /24:100293 /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 2176 2495 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1896 2977 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1319 1915 CABLEONE, US 8151 1196 2145 UNINET, MX 49505 663 946 SELECTEL, RU 9123 553 679 TIMEWEB-AS, RU 36914 551 575 KENET-AS, KE 20115 549 2239 CHARTER-20115, US 16509 506 2353 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:242 2:304 3:119 5:1113 8:80 12:76 13:97 14:409 15:58 16:61 17:335 18:75 20:28 23:656 24:591 25:2 27:600 31:574 32:2 34:3 35:55 36:3202 37:665 38:542 39:747 40:1 41:258 42:109 43:631 44:18 45:2198 46:801 47:66 49:205 50:339 51:136 52:256 54:61 57:27 58:240 59:550 60:102 61:776 62:582 63:128 64:392 65:291 66:353 67:325 68:67 69:264 70:41 71:77 72:245 74:223 75:67 76:62 77:515 78:452 79:258 80:233 81:337 82:413 83:194 84:204 85:448 86:130 87:340 88:139 89:497 90:137 91:1433 92:454 93:956 94:890 95:1541 96:264 97:147 98:71 99:45 101:498 102:100 103:7707 104:330 105:9 106:297 107:142 108:171 109:549 110:233 111:2502 112:1302 113:299 114:867 115:302 116:384 117:1447 118:262 119:230 120:1558 121:383 122:1929 123:629 124:315 125:1625 126:4 128:398 129:71 130:112 131:176 132:69 133:303 134:113 135:25 136:81 137:175 138:287 139:136 140:312 141:156 142:79 143:149 144:131 145:140 146:351 147:245 148:350 149:212 150:230 151:566 152:470 153:37 154:623 155:198 156:470 157:260 158:123 159:389 160:641 161:150 162:277 163:343 164:158 165:265 166:55 167:151 168:312 169:70 170:439 171:228 172:181 173:998 174:111 175:486 176:729 177:457 178:714 179:161 180:455 181:174 182:1655 183:1404 184:104 185:2384 186:219 187:598 188:789 189:305 190:393 191:91 192:1729 193:1175 194:969 195:827 196:300 197:408 198:731 199:515 200:747 201:569 202:2417 203:1929 204:270 205:268 206:313 207:348 208:239 209:320 210:1363 211:1167 212:830 213:548 216:392 217:600 218:856 219:51 220:576 221:522 222:127 223:1554 End of report