IPv4 R&E Routing Table Report 20:30 GMT Sun 18 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: 158574 Prefixes after maximum aggregation (per Origin AS): 62824 Deaggregation factor: 2.52 Unique aggregates announced (without unneeded subnets): 89314 Number of IPv4 prefixes with a valid ROA: 86957 Number of IPv4 prefixes with an invalid ROA: 74 Number of IPv4 prefixes with no ROA: 71543 Total ASes present in the Internet Routing Table: 14629 Prefixes per ASN: 10.84 Origin-only ASes present in the Internet Routing Table: 12368 Origin ASes announcing only one prefix: 5967 Transit ASes present in the Internet Routing Table: 2261 Transit-only ASes present in the Internet Routing Table: 517 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: 77 Number of instances of unregistered ASNs: 77 Number of 32-bit ASNs allocated by the RIRs: 46451 Number of 32-bit ASNs visible in the Routing Table: 7215 Prefixes from 32-bit ASNs in the Routing Table: 29186 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: 505941504 Equivalent to 30 /8s, 40 /16s and 14 /24s Percentage of available address space announced: 13.7 Percentage of allocated address space announced: 13.7 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: 38584 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78379 Total APNIC prefixes after maximum aggregation: 25050 APNIC Deaggregation factor: 3.13 Prefixes being announced from the APNIC address blocks: 76759 Unique aggregates announced from the APNIC address blocks: 36557 APNIC Region origin ASes present in the Internet Routing Table: 5017 APNIC Prefixes per ASN: 15.30 APNIC Region origin ASes announcing only one prefix: 1877 APNIC Region transit ASes present in the Internet Routing Table: 746 Average APNIC Region AS path length visible: 7.4 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: 189396480 Equivalent to 11 /8s, 73 /16s and 246 /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: 26937 Total ARIN prefixes after maximum aggregation: 14658 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26470 Unique aggregates announced from the ARIN address blocks: 20453 ARIN Region origin ASes present in the Internet Routing Table: 2130 ARIN Prefixes per ASN: 12.43 ARIN Region origin ASes announcing only one prefix: 999 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: 469 Number of ARIN addresses announced to Internet: 167250688 Equivalent to 9 /8s, 248 /16s and 11 /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: 39422 Total RIPE prefixes after maximum aggregation: 18286 RIPE Deaggregation factor: 2.16 Prefixes being announced from the RIPE address blocks: 40350 Unique aggregates announced from the RIPE address blocks: 25089 RIPE Region origin ASes present in the Internet Routing Table: 4608 RIPE Prefixes per ASN: 8.76 RIPE Region origin ASes announcing only one prefix: 2128 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: 1606 Number of RIPE addresses announced to Internet: 125120768 Equivalent to 7 /8s, 117 /16s and 49 /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: 12235 Total LACNIC prefixes after maximum aggregation: 4402 LACNIC Deaggregation factor: 2.78 Prefixes being announced from the LACNIC address blocks: 11670 Unique aggregates announced from the LACNIC address blocks: 5619 LACNIC Region origin ASes present in the Internet Routing Table: 2237 LACNIC Prefixes per ASN: 5.22 LACNIC Region origin ASes announcing only one prefix: 926 LACNIC Region transit ASes present in the Internet Routing Table: 495 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: 1877 Number of LACNIC addresses announced to Internet: 18283520 Equivalent to 1 /8s, 22 /16s and 252 /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: 1524 Total AfriNIC prefixes after maximum aggregation: 371 AfriNIC Deaggregation factor: 4.11 Prefixes being announced from the AfriNIC address blocks: 3283 Unique aggregates announced from the AfriNIC address blocks: 1566 AfriNIC Region origin ASes present in the Internet Routing Table: 98 AfriNIC Prefixes per ASN: 33.50 AfriNIC Region origin ASes announcing only one prefix: 37 AfriNIC Region transit ASes present in the Internet Routing Table: 30 Average AfriNIC Region AS path length visible: 7.1 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 48 Number of AfriNIC addresses announced to Internet: 5860096 Equivalent to 0 /8s, 89 /16s and 107 /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 10812 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4223 500 292 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2134 1078 453 VIETEL-AS-AP Viettel Group, VN 4766 1969 6031 944 KIXS-AS-KR Korea Telecom, KR 45609 1845 823 324 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1779 812 180 CMNET-JIANGSU-AP China Mobile communicati 56041 1577 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1485 192 53 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 2416 335 668 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2236 3628 1280 AMAZON-02, US 20115 2235 3096 513 CHARTER-20115, US 11492 1926 134 1045 CABLEONE, US 714 1237 4391 8 APPLE-ENGINEERING, US 8075 756 16021 638 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 638 1880 300 TWC-10796-MIDWEST, US 12083 580 192 88 WOW-INTERNET, US 2152 396 44 265 CENIC-2152, US 33363 386 1422 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 4179 255 52 ALJAWWALSTC-AS, SA 12389 2309 1999 781 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 918 639 338 SAUDINETSTC-AS, SA 49505 861 92 356 SELECTEL, RU 9123 633 40 282 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 1924 679 255 UNINET, MX 7738 571 1703 62 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 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 127 10 26 CPS, AR 11340 110 25 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR 262287 88 13 74 Latitude.sh LTDA, 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 544 82 3 KENET-AS, KE 2018 372 318 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 10812 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4223 500 292 BBIL-AP BHARTI Airtel Ltd., IN 39891 4179 255 52 ALJAWWALSTC-AS, SA 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2416 335 668 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2309 1999 781 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2236 3628 1280 AMAZON-02, US 20115 2235 3096 513 CHARTER-20115, US 7552 2134 1078 453 VIETEL-AS-AP Viettel Group, VN 4766 1969 6031 944 KIXS-AS-KR Korea Telecom, KR 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 4223 3931 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 2331 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 30036 2416 1748 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 1722 CHARTER-20115, US 7552 2134 1681 VIETEL-AS-AP Viettel Group, VN 8151 1924 1669 UNINET, MX 56046 1779 1599 CMNET-JIANGSU-AP China Mobile communications co 12389 2309 1528 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 45609 1845 1521 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 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 /14:166 /15:396 /16:2481 /17:1348 /18:2808 /19:4426 /20:7646 /21:9458 /22:17219 /23:16416 /24:96051 /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 2100 2416 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1403 2309 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1325 1926 CABLEONE, US 8151 1062 1924 UNINET, MX 49505 597 861 SELECTEL, RU 20115 552 2235 CHARTER-20115, US 36914 520 544 KENET-AS, KE 9123 515 633 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) ---------------------------------------------- 1:162 2:325 3:104 5:1090 8:71 12:78 13:89 14:386 15:58 16:63 17:324 18:74 20:28 23:715 24:596 25:2 27:610 31:530 32:2 34:3 35:37 36:1812 37:645 38:518 39:706 40:1 41:243 42:115 43:666 44:23 45:2344 46:789 47:64 49:257 50:320 51:138 52:259 54:62 57:28 58:268 59:433 60:95 61:776 62:554 63:129 64:353 65:283 66:299 67:291 68:72 69:263 70:32 71:84 72:226 74:197 75:65 76:61 77:482 78:452 79:234 80:222 81:343 82:345 83:183 84:184 85:367 86:113 87:315 88:99 89:456 90:134 91:1393 92:449 93:932 94:783 95:1457 96:265 97:146 98:68 99:47 101:459 102:118 103:7972 104:363 105:9 106:291 107:108 108:146 109:472 110:230 111:2155 112:947 113:300 114:828 115:295 116:411 117:1373 118:324 119:243 120:1290 121:410 122:1716 123:393 124:326 125:1586 126:6 128:383 129:67 130:126 131:219 132:52 133:302 134:163 135:24 136:79 137:166 138:319 139:226 140:316 141:192 142:76 143:161 144:124 145:135 146:371 147:232 148:197 149:199 150:227 151:519 152:453 153:37 154:874 155:189 156:458 157:288 158:127 159:395 160:649 161:133 162:271 163:304 164:162 165:220 166:44 167:179 168:588 169:68 170:465 171:192 172:212 173:976 174:120 175:563 176:733 177:478 178:678 179:171 180:474 181:139 182:1620 183:1124 184:139 185:2234 186:226 187:491 188:589 189:307 190:470 191:94 192:1836 193:1127 194:905 195:771 196:302 197:365 198:766 199:558 200:799 201:525 202:2509 203:2197 204:289 205:263 206:302 207:320 208:241 209:308 210:1462 211:1148 212:743 213:516 214:2 216:346 217:554 218:798 219:64 220:550 221:391 222:127 223:1100 End of report