IPv4 R&E Routing Table Report 20:30 GMT Thu 01 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: 158889 Prefixes after maximum aggregation (per Origin AS): 63173 Deaggregation factor: 2.52 Unique aggregates announced (without unneeded subnets): 90153 Number of IPv4 prefixes with a valid ROA: 87467 Number of IPv4 prefixes with an invalid ROA: 97 Number of IPv4 prefixes with no ROA: 71325 Total ASes present in the Internet Routing Table: 14650 Prefixes per ASN: 10.85 Origin-only ASes present in the Internet Routing Table: 12407 Origin ASes announcing only one prefix: 5992 Transit ASes present in the Internet Routing Table: 2243 Transit-only ASes present in the Internet Routing Table: 507 Paths with bogon ASNs present in the IPv4 Routing Table: 3 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: 83 Number of instances of unregistered ASNs: 83 Number of 32-bit ASNs allocated by the RIRs: 46308 Number of 32-bit ASNs visible in the Routing Table: 7258 Prefixes from 32-bit ASNs in the Routing Table: 29490 Number of bogon 32-bit ASNs visible in the Routing Table: 6 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 67 Number of addresses announced to Internet: 506352384 Equivalent to 30 /8s, 46 /16s and 83 /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: 39032 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78295 Total APNIC prefixes after maximum aggregation: 25377 APNIC Deaggregation factor: 3.09 Prefixes being announced from the APNIC address blocks: 76557 Unique aggregates announced from the APNIC address blocks: 37158 APNIC Region origin ASes present in the Internet Routing Table: 5027 APNIC Prefixes per ASN: 15.23 APNIC Region origin ASes announcing only one prefix: 1861 APNIC Region transit ASes present in the Internet Routing Table: 725 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: 3244 Number of APNIC addresses announced to Internet: 189133312 Equivalent to 11 /8s, 69 /16s and 242 /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: 27021 Total ARIN prefixes after maximum aggregation: 14580 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26620 Unique aggregates announced from the ARIN address blocks: 20469 ARIN Region origin ASes present in the Internet Routing Table: 2121 ARIN Prefixes per ASN: 12.55 ARIN Region origin ASes announcing only one prefix: 1003 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: 463 Number of ARIN addresses announced to Internet: 167705344 Equivalent to 9 /8s, 254 /16s and 251 /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: 39506 Total RIPE prefixes after maximum aggregation: 18320 RIPE Deaggregation factor: 2.16 Prefixes being announced from the RIPE address blocks: 40396 Unique aggregates announced from the RIPE address blocks: 25072 RIPE Region origin ASes present in the Internet Routing Table: 4611 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: 668 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: 1607 Number of RIPE addresses announced to Internet: 125035264 Equivalent to 7 /8s, 115 /16s and 227 /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: 12164 Total LACNIC prefixes after maximum aggregation: 4375 LACNIC Deaggregation factor: 2.78 Prefixes being announced from the LACNIC address blocks: 11597 Unique aggregates announced from the LACNIC address blocks: 5593 LACNIC Region origin ASes present in the Internet Routing Table: 2232 LACNIC Prefixes per ASN: 5.20 LACNIC Region origin ASes announcing only one prefix: 947 LACNIC Region transit ASes present in the Internet Routing Table: 490 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 24 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1874 Number of LACNIC addresses announced to Internet: 18259712 Equivalent to 1 /8s, 22 /16s and 159 /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: 1820 Total AfriNIC prefixes after maximum aggregation: 461 AfriNIC Deaggregation factor: 3.95 Prefixes being announced from the AfriNIC address blocks: 3652 Unique aggregates announced from the AfriNIC address blocks: 1826 AfriNIC Region origin ASes present in the Internet Routing Table: 129 AfriNIC Prefixes per ASN: 28.31 AfriNIC Region origin ASes announcing only one prefix: 53 AfriNIC Region transit ASes present in the Internet Routing Table: 36 Average AfriNIC Region AS path length visible: 7.7 Max AfriNIC Region AS path length visible: 28 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 70 Number of AfriNIC addresses announced to Internet: 6187520 Equivalent to 0 /8s, 94 /16s and 106 /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 10276 8754 92 CHINAMOBILE-CN China Mobile Communication 9498 4176 498 269 BBIL-AP BHARTI Airtel Ltd., IN 24560 2859 851 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2256 1085 454 VIETEL-AS-AP Viettel Group, VN 4766 2032 6035 956 KIXS-AS-KR Korea Telecom, KR 45609 1852 828 323 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1630 812 180 CMNET-JIANGSU-AP China Mobile communicati 56041 1574 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication 9919 970 170 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 2413 336 670 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 3097 506 CHARTER-20115, US 16509 2229 3628 1269 AMAZON-02, US 11492 1902 132 1040 CABLEONE, US 714 1228 4391 8 APPLE-ENGINEERING, US 8075 750 16020 633 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1912 301 TWC-10796-MIDWEST, US 12083 577 192 88 WOW-INTERNET, US 2152 396 44 265 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 2306 1997 780 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 913 639 327 SAUDINETSTC-AS, SA 49505 859 92 356 SELECTEL, RU 9123 621 39 277 TIMEWEB-AS, RU 50010 616 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 480 180 178 KAZTELECOM-AS, KZ 9155 425 37 9 QNET Kuwait, KW 21299 423 77 60 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 1851 676 242 UNINET, MX 7738 592 1767 64 V tal, BR 8167 342 1089 44 V tal, BR 1916 240 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 217 16 28 Companhia Itabirana Telecomunicacoes Ltda 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 128 10 26 CPS, AR 11340 110 25 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR 262287 98 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 542 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 36873 200 83 32 VNL1-AS, NG 15399 95 8 44 WANANCHI-, KE 30999 74 25 32 EMTEL-AS-AP, MU 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 34 8 1 MAREN, MW 327885 26 4 2 Viettel-Tanzania, TZ 6879 24 2 9 ENSTINET-, EG 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 10276 8754 92 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4176 498 269 BBIL-AP BHARTI Airtel Ltd., IN 24560 2859 851 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2413 336 670 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2306 1997 780 ROSTELECOM-AS PJSC Rostelecom. Technical 7552 2256 1085 454 VIETEL-AS-AP Viettel Group, VN 20115 2235 3097 506 CHARTER-20115, US 16509 2229 3628 1269 AMAZON-02, US 4766 2032 6035 956 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 4176 3907 BBIL-AP BHARTI Airtel Ltd., IN 24560 2859 2324 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 7552 2256 1802 VIETEL-AS-AP Viettel Group, VN 30036 2413 1743 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 1729 CHARTER-20115, US 8151 1851 1609 UNINET, MX 45609 1852 1529 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 12389 2306 1526 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 56041 1574 1500 CMNET-ZHEJIANG-AP China Mobile communications c 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 393377 UNALLOCATED 12.195.116.0/24 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 268652 UNALLOCATED 45.165.20.0/22 264493 UNASSIGNED 36288 UNALLOCATED 64.79.154.0/24 293 ESNET, US 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, US 396324 UNALLOCATED 66.57.112.0/24 11426 TWC-11426-CAROLINAS, 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 /14:167 /15:397 /16:2489 /17:1334 /18:2815 /19:4422 /20:7584 /21:9473 /22:17305 /23:16416 /24:96328 /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 2097 2413 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1401 2306 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1322 1902 CABLEONE, US 8151 1020 1851 UNINET, MX 49505 595 859 SELECTEL, RU 20115 551 2235 CHARTER-20115, US 36914 518 542 KENET-AS, KE 50010 514 616 NAWRAS-AS Sultanate of Oman, OM 9123 504 621 TIMEWEB-AS, RU Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:199 2:321 3:103 5:1086 8:63 12:81 13:86 14:375 15:58 16:63 17:316 18:72 20:28 23:718 24:593 25:2 27:617 31:525 32:2 34:3 35:37 36:1430 37:652 38:514 39:700 40:1 41:246 42:144 43:667 44:22 45:2335 46:787 47:64 49:209 50:319 51:138 52:258 54:62 57:28 58:301 59:449 60:95 61:814 62:552 63:128 64:371 65:283 66:299 67:311 68:70 69:267 70:32 71:82 72:247 74:197 75:65 76:62 77:483 78:453 79:239 80:224 81:341 82:354 83:192 84:185 85:374 86:126 87:309 88:99 89:460 90:133 91:1394 92:447 93:931 94:784 95:1471 96:267 97:146 98:68 99:47 101:466 102:146 103:8135 104:369 105:181 106:288 107:107 108:142 109:465 110:231 111:2100 112:928 113:314 114:815 115:309 116:409 117:1382 118:440 119:257 120:1241 121:418 122:1754 123:457 124:329 125:1585 126:6 128:396 129:66 130:129 131:208 132:52 133:303 134:163 135:24 136:82 137:169 138:311 139:225 140:313 141:183 142:77 143:161 144:122 145:135 146:372 147:256 148:196 149:198 150:266 151:517 152:453 153:37 154:944 155:189 156:468 157:284 158:127 159:394 160:677 161:147 162:277 163:308 164:142 165:219 166:44 167:192 168:340 169:74 170:469 171:197 172:213 173:971 174:119 175:567 176:720 177:527 178:690 179:192 180:461 181:139 182:1582 183:1066 184:136 185:2247 186:213 187:466 188:593 189:301 190:468 191:91 192:1850 193:1122 194:913 195:765 196:290 197:406 198:761 199:556 200:788 201:531 202:2491 203:2259 204:287 205:269 206:304 207:319 208:239 209:313 210:1463 211:1147 212:765 213:520 214:2 216:367 217:561 218:807 219:66 220:567 221:359 222:135 223:1088 End of report