IPv4 R&E Routing Table Report 20:30 GMT Thu 19 Jun, 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: 160044 Prefixes after maximum aggregation (per Origin AS): 63212 Deaggregation factor: 2.53 Unique aggregates announced (without unneeded subnets): 89796 Number of IPv4 prefixes with a valid ROA: 88713 Number of IPv4 prefixes with an invalid ROA: 75 Number of IPv4 prefixes with no ROA: 71256 Total ASes present in the Internet Routing Table: 14521 Prefixes per ASN: 11.02 Origin-only ASes present in the Internet Routing Table: 12278 Origin ASes announcing only one prefix: 5921 Transit ASes present in the Internet Routing Table: 2243 Transit-only ASes present in the Internet Routing Table: 503 Paths with bogon ASNs present in the IPv4 Routing Table: 6 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) 40 Prefixes from unregistered ASNs in the Routing Table: 76 Number of instances of unregistered ASNs: 81 Number of 32-bit ASNs allocated by the RIRs: 46680 Number of 32-bit ASNs visible in the Routing Table: 7218 Prefixes from 32-bit ASNs in the Routing Table: 30532 Number of bogon 32-bit ASNs visible in the Routing Table: 12 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 33 Number of addresses announced to Internet: 497166336 Equivalent to 29 /8s, 162 /16s and 40 /24s Percentage of available address space announced: 13.4 Percentage of allocated address space announced: 13.4 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: 39374 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 79212 Total APNIC prefixes after maximum aggregation: 24759 APNIC Deaggregation factor: 3.20 Prefixes being announced from the APNIC address blocks: 77209 Unique aggregates announced from the APNIC address blocks: 35741 APNIC Region origin ASes present in the Internet Routing Table: 4916 APNIC Prefixes per ASN: 15.71 APNIC Region origin ASes announcing only one prefix: 1829 APNIC Region transit ASes present in the Internet Routing Table: 738 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: 3153 Number of APNIC addresses announced to Internet: 187007744 Equivalent to 11 /8s, 37 /16s and 131 /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: 26619 Total ARIN prefixes after maximum aggregation: 14399 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26174 Unique aggregates announced from the ARIN address blocks: 20443 ARIN Region origin ASes present in the Internet Routing Table: 2077 ARIN Prefixes per ASN: 12.60 ARIN Region origin ASes announcing only one prefix: 971 ARIN Region transit ASes present in the Internet Routing Table: 219 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: 472 Number of ARIN addresses announced to Internet: 161432832 Equivalent to 9 /8s, 159 /16s and 69 /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: 40123 Total RIPE prefixes after maximum aggregation: 19105 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 40945 Unique aggregates announced from the RIPE address blocks: 25819 RIPE Region origin ASes present in the Internet Routing Table: 4644 RIPE Prefixes per ASN: 8.82 RIPE Region origin ASes announcing only one prefix: 2151 RIPE Region transit ASes present in the Internet Routing Table: 663 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: 1655 Number of RIPE addresses announced to Internet: 124832256 Equivalent to 7 /8s, 112 /16s and 202 /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: 12443 Total LACNIC prefixes after maximum aggregation: 4513 LACNIC Deaggregation factor: 2.76 Prefixes being announced from the LACNIC address blocks: 12134 Unique aggregates announced from the LACNIC address blocks: 5899 LACNIC Region origin ASes present in the Internet Routing Table: 2253 LACNIC Prefixes per ASN: 5.39 LACNIC Region origin ASes announcing only one prefix: 925 LACNIC Region transit ASes present in the Internet Routing Table: 492 Average LACNIC Region AS path length visible: 7.3 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1887 Number of LACNIC addresses announced to Internet: 18025216 Equivalent to 1 /8s, 19 /16s and 11 /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: 1571 Total AfriNIC prefixes after maximum aggregation: 381 AfriNIC Deaggregation factor: 4.12 Prefixes being announced from the AfriNIC address blocks: 3549 Unique aggregates announced from the AfriNIC address blocks: 1866 AfriNIC Region origin ASes present in the Internet Routing Table: 104 AfriNIC Prefixes per ASN: 34.12 AfriNIC Region origin ASes announcing only one prefix: 45 AfriNIC Region transit ASes present in the Internet Routing Table: 30 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 51 Number of AfriNIC addresses announced to Internet: 5849344 Equivalent to 0 /8s, 89 /16s and 65 /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 11044 8759 106 CHINAMOBILE-CN China Mobile Communication 9498 4261 501 301 BBIL-AP BHARTI Airtel Ltd., IN 24560 2888 856 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2142 1068 455 VIETEL-AS-AP Viettel Group, VN 56046 2139 812 180 CMNET-JIANGSU-AP China Mobile communicati 4766 1954 6031 919 KIXS-AS-KR Korea Telecom, KR 45609 1853 826 324 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1675 728 86 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 2442 338 625 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2282 3707 1311 AMAZON-02, US 20115 2245 3099 510 CHARTER-20115, US 11492 1946 135 1051 CABLEONE, US 714 1240 4391 8 APPLE-ENGINEERING, US 8075 766 16021 648 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1882 301 TWC-10796-MIDWEST, US 12083 573 192 88 WOW-INTERNET, US 2152 404 46 269 CENIC-2152, US 33363 382 1424 212 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 4162 253 56 ALJAWWALSTC-AS, SA 12389 2347 1991 780 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 887 623 333 SAUDINETSTC-AS, SA 49505 860 92 356 SELECTEL, RU 9123 667 42 300 TIMEWEB-AS, RU 50010 618 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 472 189 173 KAZTELECOM-AS, KZ 9155 426 37 9 QNET Kuwait, KW 21299 424 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 42772 374 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 2184 703 300 UNINET, MX 8167 342 1089 44 V tal, BR 7738 297 939 71 V tal, BR 1916 241 177 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 125 10 26 CPS, AR 11340 109 9 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 566 82 3 KENET-AS, KE 2018 369 318 64 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 15399 72 6 27 WANANCHI-, KE 23889 55 37 31 MauritiusTelecom, MU 10798 54 3 36 SBICSA, ZA 8094 47 48 18 PUKNET, ZA 37215 36 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 328543 19 4 4 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 11044 8759 106 CHINAMOBILE-CN China Mobile Communication 9498 4261 501 301 BBIL-AP BHARTI Airtel Ltd., IN 39891 4162 253 56 ALJAWWALSTC-AS, SA 24560 2888 856 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2442 338 625 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2347 1991 780 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2282 3707 1311 AMAZON-02, US 20115 2245 3099 510 CHARTER-20115, US 8151 2184 703 300 UNINET, MX 7552 2142 1068 455 VIETEL-AS-AP Viettel Group, VN 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 4162 4106 ALJAWWALSTC-AS, SA 9498 4261 3960 BBIL-AP BHARTI Airtel Ltd., IN 24560 2888 2357 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 56046 2139 1959 CMNET-JIANGSU-AP China Mobile communications co 8151 2184 1884 UNINET, MX 30036 2442 1817 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2245 1735 CHARTER-20115, US 7552 2142 1687 VIETEL-AS-AP Viettel Group, VN 56041 1675 1589 CMNET-ZHEJIANG-AP China Mobile communications c 12389 2347 1567 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 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 268419 UNALLOCATED 45.160.144.0/24 264161 FGTECH INFORMATICA LTDA 268419 UNALLOCATED 45.160.145.0/24 264161 FGTECH INFORMATICA LTDA 268419 UNALLOCATED 45.160.147.0/24 264161 FGTECH INFORMATICA LTDA 268652 UNALLOCATED 45.165.20.0/22 264493 UNASSIGNED 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 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 /14:152 /15:389 /16:2376 /17:1280 /18:2587 /19:4404 /20:7586 /21:9663 /22:17144 /23:16701 /24:97603 /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 4162 ALJAWWALSTC-AS, SA 30036 2125 2442 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1440 2347 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1338 1946 CABLEONE, US 8151 1196 2184 UNINET, MX 49505 598 860 SELECTEL, RU 20115 549 2245 CHARTER-20115, US 36914 542 566 KENET-AS, KE 9123 541 667 TIMEWEB-AS, RU 50010 516 618 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) ---------------------------------------------- 1:159 2:324 3:106 5:1111 8:80 12:73 13:92 14:402 15:59 16:63 17:326 18:74 20:28 23:759 24:599 25:2 27:616 31:532 32:2 34:3 35:51 36:2059 37:651 38:620 39:693 40:1 41:249 42:117 43:701 44:22 45:2476 46:793 47:64 49:272 50:326 51:136 52:258 54:62 57:28 58:282 59:439 60:95 61:782 62:564 63:129 64:360 65:166 66:316 67:295 68:72 69:262 70:46 71:79 72:242 74:214 75:66 76:61 77:496 78:459 79:245 80:227 81:359 82:397 83:184 84:195 85:410 86:135 87:327 88:106 89:478 90:136 91:1377 92:469 93:954 94:787 95:1480 96:274 97:145 98:74 99:47 101:486 102:114 103:7925 104:384 105:9 106:292 107:112 108:175 109:456 110:228 111:2143 112:999 113:281 114:825 115:316 116:437 117:1315 118:298 119:248 120:1417 121:420 122:1744 123:379 124:315 125:1598 126:6 128:381 129:67 130:123 131:204 132:76 133:304 134:138 135:23 136:77 137:171 138:340 139:123 140:329 141:148 142:85 143:165 144:123 145:148 146:333 147:220 148:355 149:193 150:224 151:513 152:454 153:37 154:897 155:204 156:513 157:276 158:123 159:383 160:636 161:150 162:283 163:340 164:168 165:241 166:45 167:175 168:583 169:75 170:476 171:195 172:239 173:1003 174:126 175:582 176:729 177:526 178:696 179:163 180:437 181:159 182:1656 183:1154 184:141 185:2301 186:234 187:574 188:602 189:311 190:436 191:99 192:1814 193:1118 194:910 195:786 196:324 197:385 198:719 199:477 200:792 201:542 202:2413 203:2141 204:266 205:259 206:314 207:323 208:241 209:316 210:1379 211:1153 212:764 213:526 216:356 217:552 218:813 219:64 220:562 221:449 222:134 223:1284 End of report