IPv4 R&E Routing Table Report 20:30 GMT Fri 30 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: 158800 Prefixes after maximum aggregation (per Origin AS): 62684 Deaggregation factor: 2.53 Unique aggregates announced (without unneeded subnets): 89106 Number of IPv4 prefixes with a valid ROA: 87595 Number of IPv4 prefixes with an invalid ROA: 86 Number of IPv4 prefixes with no ROA: 71119 Total ASes present in the Internet Routing Table: 14502 Prefixes per ASN: 10.95 Origin-only ASes present in the Internet Routing Table: 12263 Origin ASes announcing only one prefix: 5954 Transit ASes present in the Internet Routing Table: 2239 Transit-only ASes present in the Internet Routing Table: 497 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: 45 Max AS path prepend of ASN (212940) 40 Prefixes from unregistered ASNs in the Routing Table: 70 Number of instances of unregistered ASNs: 70 Number of 32-bit ASNs allocated by the RIRs: 46543 Number of 32-bit ASNs visible in the Routing Table: 7188 Prefixes from 32-bit ASNs in the Routing Table: 29351 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: 36 Number of addresses announced to Internet: 503596032 Equivalent to 30 /8s, 4 /16s and 68 /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: 38600 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78951 Total APNIC prefixes after maximum aggregation: 25025 APNIC Deaggregation factor: 3.15 Prefixes being announced from the APNIC address blocks: 77317 Unique aggregates announced from the APNIC address blocks: 36655 APNIC Region origin ASes present in the Internet Routing Table: 5003 APNIC Prefixes per ASN: 15.45 APNIC Region origin ASes announcing only one prefix: 1845 APNIC Region transit ASes present in the Internet Routing Table: 746 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: 3215 Number of APNIC addresses announced to Internet: 188424960 Equivalent to 11 /8s, 59 /16s and 35 /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: 26622 Total ARIN prefixes after maximum aggregation: 14469 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26083 Unique aggregates announced from the ARIN address blocks: 20145 ARIN Region origin ASes present in the Internet Routing Table: 2089 ARIN Prefixes per ASN: 12.49 ARIN Region origin ASes announcing only one prefix: 995 ARIN Region transit ASes present in the Internet Routing Table: 215 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: 458 Number of ARIN addresses announced to Internet: 166335232 Equivalent to 9 /8s, 234 /16s and 19 /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: 39521 Total RIPE prefixes after maximum aggregation: 18483 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 40373 Unique aggregates announced from the RIPE address blocks: 25222 RIPE Region origin ASes present in the Internet Routing Table: 4594 RIPE Prefixes per ASN: 8.79 RIPE Region origin ASes announcing only one prefix: 2140 RIPE Region transit ASes present in the Internet Routing Table: 664 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: 1612 Number of RIPE addresses announced to Internet: 125334016 Equivalent to 7 /8s, 120 /16s and 114 /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: 12091 Total LACNIC prefixes after maximum aggregation: 4278 LACNIC Deaggregation factor: 2.83 Prefixes being announced from the LACNIC address blocks: 11588 Unique aggregates announced from the LACNIC address blocks: 5428 LACNIC Region origin ASes present in the Internet Routing Table: 2196 LACNIC Prefixes per ASN: 5.28 LACNIC Region origin ASes announcing only one prefix: 930 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: 1848 Number of LACNIC addresses announced to Internet: 17912832 Equivalent to 1 /8s, 17 /16s and 84 /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: 1545 Total AfriNIC prefixes after maximum aggregation: 379 AfriNIC Deaggregation factor: 4.08 Prefixes being announced from the AfriNIC address blocks: 3403 Unique aggregates announced from the AfriNIC address blocks: 1625 AfriNIC Region origin ASes present in the Internet Routing Table: 103 AfriNIC Prefixes per ASN: 33.04 AfriNIC Region origin ASes announcing only one prefix: 44 AfriNIC Region transit ASes present in the Internet Routing Table: 33 Average AfriNIC Region AS path length visible: 7.2 Max AfriNIC Region AS path length visible: 44 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 55 Number of AfriNIC addresses announced to Internet: 5566720 Equivalent to 0 /8s, 84 /16s and 241 /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 10885 8756 98 CHINAMOBILE-CN China Mobile Communication 9498 4231 500 293 BBIL-AP BHARTI Airtel Ltd., IN 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 4766 1980 6032 922 KIXS-AS-KR Korea Telecom, KR 56046 1931 812 180 CMNET-JIANGSU-AP China Mobile communicati 45609 1853 826 324 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1640 728 86 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication 9919 969 170 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 2424 336 655 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2251 3646 1290 AMAZON-02, US 20115 2245 3096 513 CHARTER-20115, US 11492 1934 134 1045 CABLEONE, US 714 1240 4391 8 APPLE-ENGINEERING, US 8075 738 16019 628 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 638 1880 300 TWC-10796-MIDWEST, US 12083 581 192 88 WOW-INTERNET, US 2152 404 46 270 CENIC-2152, US 33363 388 1424 215 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 2312 1992 782 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 889 623 324 SAUDINETSTC-AS, SA 49505 861 92 357 SELECTEL, RU 9123 641 40 288 TIMEWEB-AS, RU 50010 617 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 487 191 179 KAZTELECOM-AS, KZ 9155 429 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 2063 690 278 UNINET, MX 7738 510 1527 64 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 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 126 10 26 CPS, AR 11340 110 25 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR 262773 89 16 34 PROXXIMA TELECOMUNICACOES SA, 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 556 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 328543 20 5 5 sun-asn, SC 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 10885 8756 98 CHINAMOBILE-CN China Mobile Communication 9498 4231 500 293 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2424 336 655 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2312 1992 782 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2251 3646 1290 AMAZON-02, US 20115 2245 3096 513 CHARTER-20115, US 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 8151 2063 690 278 UNINET, MX 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 4231 3938 BBIL-AP BHARTI Airtel Ltd., IN 24560 2878 2350 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 8151 2063 1785 UNINET, MX 30036 2424 1769 MEDIACOM-ENTERPRISE-BUSINESS, US 56046 1931 1751 CMNET-JIANGSU-AP China Mobile communications co 20115 2245 1732 CHARTER-20115, US 7552 2151 1694 VIETEL-AS-AP Viettel Group, VN 56041 1640 1554 CMNET-ZHEJIANG-AP China Mobile communications c 12389 2312 1530 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 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 26345 UNALLOCATED 71.13.182.0/24 20115 CHARTER-20115, 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 103.12.68.0/22 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/22 Transit: 17476 CHL-AS-AP CloudRadium HK Limited, HK 103.12.68.0/24 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/24 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 /14:162 /15:394 /16:2464 /17:1295 /18:2750 /19:4424 /20:7660 /21:9581 /22:17318 /23:16610 /24:95983 /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 4180 ALJAWWALSTC-AS, SA 30036 2107 2424 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1404 2312 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1326 1934 CABLEONE, US 8151 1131 2063 UNINET, MX 49505 597 861 SELECTEL, RU 20115 552 2245 CHARTER-20115, US 36914 532 556 KENET-AS, KE 9123 521 641 TIMEWEB-AS, RU 50010 515 617 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 2:319 3:105 5:1097 8:79 12:79 13:90 14:395 15:59 16:63 17:326 18:74 20:28 23:712 24:597 25:2 27:611 31:531 32:2 34:3 35:37 36:1929 37:631 38:524 39:695 40:1 41:250 42:115 43:670 44:21 45:2272 46:766 47:63 49:209 50:317 51:138 52:259 54:62 57:28 58:263 59:458 60:95 61:784 62:548 63:115 64:349 65:281 66:268 67:291 68:75 69:255 70:47 71:83 72:245 74:209 75:65 76:62 77:483 78:457 79:239 80:225 81:331 82:342 83:187 84:185 85:376 86:117 87:315 88:97 89:474 90:135 91:1386 92:443 93:944 94:774 95:1472 96:267 97:146 98:68 99:47 101:484 102:102 103:7956 104:357 105:9 106:292 107:107 108:176 109:451 110:225 111:2113 112:982 113:299 114:835 115:381 116:430 117:1380 118:356 119:216 120:1337 121:425 122:1727 123:394 124:329 125:1590 126:6 128:378 129:64 130:127 131:206 132:50 133:302 134:163 135:22 136:78 137:166 138:316 139:215 140:320 141:180 142:81 143:158 144:126 145:142 146:370 147:221 148:195 149:166 150:220 151:523 152:454 153:38 154:911 155:198 156:469 157:286 158:128 159:357 160:599 161:132 162:240 163:322 164:141 165:227 166:39 167:182 168:586 169:69 170:481 171:192 172:232 173:980 174:122 175:562 176:719 177:474 178:687 179:177 180:458 181:134 182:1632 183:1135 184:133 185:2218 186:211 187:525 188:599 189:308 190:469 191:81 192:1854 193:1100 194:901 195:769 196:302 197:375 198:704 199:489 200:770 201:543 202:2479 203:2161 204:273 205:223 206:298 207:316 208:236 209:271 210:1477 211:1150 212:756 213:518 216:339 217:507 218:810 219:60 220:569 221:410 222:133 223:1210 End of report