IPv4 R&E Routing Table Report 20:30 GMT Sun 25 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: 160202 Prefixes after maximum aggregation (per Origin AS): 63482 Deaggregation factor: 2.52 Unique aggregates announced (without unneeded subnets): 90515 Number of IPv4 prefixes with a valid ROA: 88089 Number of IPv4 prefixes with an invalid ROA: 80 Number of IPv4 prefixes with no ROA: 72033 Total ASes present in the Internet Routing Table: 14733 Prefixes per ASN: 10.87 Origin-only ASes present in the Internet Routing Table: 12452 Origin ASes announcing only one prefix: 6029 Transit ASes present in the Internet Routing Table: 2281 Transit-only ASes present in the Internet Routing Table: 510 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: 69 Number of instances of unregistered ASNs: 69 Number of 32-bit ASNs allocated by the RIRs: 46520 Number of 32-bit ASNs visible in the Routing Table: 7326 Prefixes from 32-bit ASNs in the Routing Table: 29773 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: 42 Number of addresses announced to Internet: 505219840 Equivalent to 30 /8s, 29 /16s and 11 /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: 39033 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78982 Total APNIC prefixes after maximum aggregation: 25221 APNIC Deaggregation factor: 3.13 Prefixes being announced from the APNIC address blocks: 77306 Unique aggregates announced from the APNIC address blocks: 36923 APNIC Region origin ASes present in the Internet Routing Table: 5062 APNIC Prefixes per ASN: 15.27 APNIC Region origin ASes announcing only one prefix: 1878 APNIC Region transit ASes present in the Internet Routing Table: 752 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: 3266 Number of APNIC addresses announced to Internet: 188512768 Equivalent to 11 /8s, 60 /16s and 122 /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: 27147 Total ARIN prefixes after maximum aggregation: 14725 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26602 Unique aggregates announced from the ARIN address blocks: 20605 ARIN Region origin ASes present in the Internet Routing Table: 2133 ARIN Prefixes per ASN: 12.47 ARIN Region origin ASes announcing only one prefix: 1003 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: 473 Number of ARIN addresses announced to Internet: 166877952 Equivalent to 9 /8s, 242 /16s and 91 /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: 39817 Total RIPE prefixes after maximum aggregation: 18569 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 40671 Unique aggregates announced from the RIPE address blocks: 25382 RIPE Region origin ASes present in the Internet Routing Table: 4621 RIPE Prefixes per ASN: 8.80 RIPE Region origin ASes announcing only one prefix: 2138 RIPE Region transit ASes present in the Internet Routing Table: 667 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: 1621 Number of RIPE addresses announced to Internet: 125584640 Equivalent to 7 /8s, 124 /16s and 69 /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: 12648 Total LACNIC prefixes after maximum aggregation: 4542 LACNIC Deaggregation factor: 2.78 Prefixes being announced from the LACNIC address blocks: 12138 Unique aggregates announced from the LACNIC address blocks: 5912 LACNIC Region origin ASes present in the Internet Routing Table: 2287 LACNIC Prefixes per ASN: 5.31 LACNIC Region origin ASes announcing only one prefix: 971 LACNIC Region transit ASes present in the Internet Routing Table: 509 Average LACNIC Region AS path length visible: 7.5 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1915 Number of LACNIC addresses announced to Internet: 18257920 Equivalent to 1 /8s, 22 /16s and 152 /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: 1539 Total AfriNIC prefixes after maximum aggregation: 376 AfriNIC Deaggregation factor: 4.09 Prefixes being announced from the AfriNIC address blocks: 3443 Unique aggregates announced from the AfriNIC address blocks: 1660 AfriNIC Region origin ASes present in the Internet Routing Table: 101 AfriNIC Prefixes per ASN: 34.09 AfriNIC Region origin ASes announcing only one prefix: 39 AfriNIC Region transit ASes present in the Internet Routing Table: 32 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: 51 Number of AfriNIC addresses announced to Internet: 5960192 Equivalent to 0 /8s, 90 /16s and 242 /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 10848 8755 97 CHINAMOBILE-CN China Mobile Communication 9498 4227 500 293 BBIL-AP BHARTI Airtel Ltd., IN 24560 2868 853 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2139 1066 462 VIETEL-AS-AP Viettel Group, VN 4766 1987 6032 932 KIXS-AS-KR Korea Telecom, KR 56046 1856 812 180 CMNET-JIANGSU-AP China Mobile communicati 45609 1849 824 323 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1591 726 76 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication 9919 971 170 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 2419 335 660 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2235 3629 1279 AMAZON-02, US 20115 2235 3096 513 CHARTER-20115, US 11492 1933 134 1044 CABLEONE, US 714 1241 4391 8 APPLE-ENGINEERING, US 8075 756 16021 638 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 638 1880 300 TWC-10796-MIDWEST, US 12083 581 192 88 WOW-INTERNET, US 2152 403 46 269 CENIC-2152, US 33363 387 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 2311 1999 782 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 904 629 334 SAUDINETSTC-AS, SA 49505 861 92 357 SELECTEL, RU 9123 637 40 285 TIMEWEB-AS, RU 50010 617 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 483 188 175 KAZTELECOM-AS, KZ 9155 428 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 2018 686 269 UNINET, MX 7738 510 1527 64 V tal, BR 8167 342 1089 44 V tal, BR 1916 242 177 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 126 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 552 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 21 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 10848 8755 97 CHINAMOBILE-CN China Mobile Communication 9498 4227 500 293 BBIL-AP BHARTI Airtel Ltd., IN 39891 4179 255 52 ALJAWWALSTC-AS, SA 24560 2868 853 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2419 335 660 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2311 1999 782 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2235 3629 1279 AMAZON-02, US 20115 2235 3096 513 CHARTER-20115, US 7552 2139 1066 462 VIETEL-AS-AP Viettel Group, VN 8151 2018 686 269 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 4179 4127 ALJAWWALSTC-AS, SA 9498 4227 3934 BBIL-AP BHARTI Airtel Ltd., IN 24560 2868 2333 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 30036 2419 1759 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 2018 1749 UNINET, MX 20115 2235 1722 CHARTER-20115, US 7552 2139 1677 VIETEL-AS-AP Viettel Group, VN 56046 1856 1676 CMNET-JIANGSU-AP China Mobile communications co 12389 2311 1529 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 45609 1849 1526 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 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 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 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 /15:395 /16:2469 /17:1319 /18:2762 /19:4438 /20:7714 /21:9567 /22:17398 /23:16605 /24:97214 /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 2102 2419 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1404 2311 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1325 1933 CABLEONE, US 8151 1109 2018 UNINET, MX 49505 597 861 SELECTEL, RU 20115 552 2235 CHARTER-20115, US 36914 528 552 KENET-AS, KE 9123 517 637 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 2:321 3:105 5:1098 8:79 12:79 13:87 14:393 15:58 16:63 17:325 18:74 20:28 23:714 24:594 25:2 27:614 31:532 32:2 34:3 35:37 36:1866 37:632 38:530 39:701 40:1 41:247 42:116 43:672 44:22 45:2349 46:783 47:64 49:208 50:319 51:138 52:259 54:62 57:28 58:266 59:458 60:95 61:779 62:553 63:129 64:351 65:283 66:299 67:295 68:78 69:265 70:48 71:83 72:246 74:197 75:65 76:62 77:488 78:457 79:240 80:224 81:345 82:360 83:183 84:185 85:374 86:115 87:312 88:98 89:477 90:134 91:1401 92:453 93:940 94:781 95:1473 96:266 97:146 98:68 99:47 101:484 102:117 103:8029 104:370 105:9 106:291 107:108 108:147 109:462 110:229 111:2114 112:972 113:299 114:833 115:382 116:428 117:1377 118:348 119:218 120:1315 121:427 122:1728 123:390 124:329 125:1586 126:6 128:382 129:66 130:127 131:214 132:54 133:302 134:163 135:24 136:78 137:166 138:338 139:220 140:324 141:194 142:81 143:166 144:128 145:137 146:372 147:229 148:355 149:198 150:225 151:522 152:453 153:37 154:925 155:192 156:461 157:285 158:128 159:395 160:650 161:145 162:273 163:319 164:143 165:223 166:45 167:195 168:608 169:69 170:492 171:193 172:232 173:977 174:121 175:555 176:724 177:532 178:687 179:201 180:477 181:131 182:1622 183:1114 184:138 185:2246 186:218 187:520 188:597 189:313 190:491 191:95 192:1839 193:1119 194:914 195:777 196:306 197:373 198:769 199:554 200:799 201:553 202:2507 203:2232 204:285 205:260 206:303 207:319 208:244 209:317 210:1481 211:1143 212:758 213:515 216:347 217:554 218:805 219:62 220:568 221:400 222:148 223:1191 End of report