IPv4 R&E Routing Table Report 20:15 GMT Wed 02 Jul, 2025 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 277512 Prefixes after maximum aggregation (per Origin AS): 120281 Deaggregation factor: 2.31 Unique aggregates announced (without unneeded subnets): 143360 Number of IPv4 prefixes with a valid ROA: 129411 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 148059 Total ASes present in the Internet Routing Table: 20882 Prefixes per ASN: 13.29 Origin-only ASes present in the Internet Routing Table: 17975 Origin ASes announcing only one prefix: 8076 Transit ASes present in the Internet Routing Table: 2907 Transit-only ASes present in the Internet Routing Table: 731 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 30 Max AS path prepend of ASN (265171) 25 Prefixes from unregistered ASNs in the Routing Table: 372 Number of instances of unregistered ASNs: 404 Number of 32-bit ASNs allocated by the RIRs: 46726 Number of 32-bit ASNs visible in the Routing Table: 8333 Prefixes from 32-bit ASNs in the Routing Table: 33149 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 116 Number of addresses announced to Internet: 1568926661 Equivalent to 93 /8s, 131 /16s and 235 /24s Percentage of available address space announced: 42.4 Percentage of allocated address space announced: 42.4 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: 89078 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33550 Total APNIC prefixes after maximum aggregation: 7449 APNIC Deaggregation factor: 4.50 Prefixes being announced from the APNIC address blocks: 32204 Unique aggregates announced from the APNIC address blocks: 7655 APNIC Region origin ASes present in the Internet Routing Table: 1242 APNIC Prefixes per ASN: 25.93 APNIC Region origin ASes announcing only one prefix: 488 APNIC Region transit ASes present in the Internet Routing Table: 203 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 595 Number of APNIC addresses announced to Internet: 165163372 Equivalent to 9 /8s, 216 /16s and 49 /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: 126900 Total ARIN prefixes after maximum aggregation: 66668 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125089 Unique aggregates announced from the ARIN address blocks: 68044 ARIN Region origin ASes present in the Internet Routing Table: 9348 ARIN Prefixes per ASN: 13.38 ARIN Region origin ASes announcing only one prefix: 3886 ARIN Region transit ASes present in the Internet Routing Table: 890 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2202 Number of ARIN addresses announced to Internet: 961611273 Equivalent to 57 /8s, 81 /16s and 6 /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: 50318 Total RIPE prefixes after maximum aggregation: 27246 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 51983 Unique aggregates announced from the RIPE address blocks: 38015 RIPE Region origin ASes present in the Internet Routing Table: 4651 RIPE Prefixes per ASN: 11.18 RIPE Region origin ASes announcing only one prefix: 1968 RIPE Region transit ASes present in the Internet Routing Table: 698 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1916 Number of RIPE addresses announced to Internet: 286926672 Equivalent to 17 /8s, 26 /16s and 39 /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: 55833 Total LACNIC prefixes after maximum aggregation: 16344 LACNIC Deaggregation factor: 3.42 Prefixes being announced from the LACNIC address blocks: 54142 Unique aggregates announced from the LACNIC address blocks: 24432 LACNIC Region origin ASes present in the Internet Routing Table: 4491 LACNIC Prefixes per ASN: 12.06 LACNIC Region origin ASes announcing only one prefix: 1623 LACNIC Region transit ASes present in the Internet Routing Table: 892 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3466 Number of LACNIC addresses announced to Internet: 108875520 Equivalent to 6 /8s, 125 /16s and 79 /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: 10539 Total AfriNIC prefixes after maximum aggregation: 2314 AfriNIC Deaggregation factor: 4.55 Prefixes being announced from the AfriNIC address blocks: 13978 Unique aggregates announced from the AfriNIC address blocks: 5099 AfriNIC Region origin ASes present in the Internet Routing Table: 291 AfriNIC Prefixes per ASN: 48.03 AfriNIC Region origin ASes announcing only one prefix: 111 AfriNIC Region transit ASes present in the Internet Routing Table: 76 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 154 Number of AfriNIC addresses announced to Internet: 46234112 Equivalent to 2 /8s, 193 /16s and 122 /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 11227 8759 113 CHINAMOBILE-CN China Mobile Communication 56046 2361 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1669 718 90 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1481 192 50 CMNET-HUNAN-AP China Mobile communication 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 17561 667 42 218 LCS-AS-AP LARUS Limited, HK 2907 611 2169 463 SINET-AS Research Organization of Informa 45102 532 883 137 ALIBABA-CN-NET Alibaba US Technology Co., 24445 524 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13573 40947 5216 AMAZON-02, US 22773 3334 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2845 216 1733 USDA-1, US 36352 2563 210 1137 AS-COLOCROSSING, US 367 2457 3164 1162 DNIC-ASBLK-00306-00371, US 6167 1909 3939 521 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1814 22860 1356 ATT-INTERNET4, US 209 1657 4889 270 CENTURYLINK-US-LEGACY-QWEST, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1195 92 972 AKAMAI-ASN1, NL 3257 1042 2082 805 GTT-BACKBONE GTT, US 3215 887 4818 291 France Telecom - Orange, FR 25019 815 1301 129 SAUDINETSTC-AS, SA 8452 813 1841 16 TE-AS TE-AS, EG 34984 680 74 416 TELLCOM-AS, TR 212238 663 47 587 CDNEXT, GB 8376 574 52 23 Jordan Data Communications, JO 51167 568 113 251 CONTABO, DE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 7144 1923 909 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1710 248 1230 Telmex Colombia S.A., CO 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 26615 1054 2487 55 TIM SA, BR 18881 883 1127 31 TELEFONICA BRASIL S.A, BR 11172 723 124 70 Alestra, S. de R.L. de C.V., MX 28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 647 91 44 ENTEL CHILE S.A., CL Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1450 389 16 LINKdotNET-AS, EG 29571 1064 100 72 ORANGE-COTE-IVOIRE, CI 24835 980 413 108 RAYA-AS, EG 36914 573 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 553 1192 126 ETISALAT-MISR, EG 36935 475 517 39 Vodafone-, EG 37069 465 1062 15 MOBINIL, EG 36903 456 204 330 MT-MPLS, MA 2018 374 318 69 TENET-1, ZA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13573 40947 5216 AMAZON-02, US 9808 11227 8759 113 CHINAMOBILE-CN China Mobile Communication 8151 7144 1923 909 UNINET, MX 22773 3334 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2845 216 1733 USDA-1, US 36352 2563 210 1137 AS-COLOCROSSING, US 367 2457 3164 1162 DNIC-ASBLK-00306-00371, US 56046 2361 811 188 CMNET-JIANGSU-AP China Mobile communicati 11830 1987 369 64 Instituto Costarricense de Electricidad y Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 11227 11114 CHINAMOBILE-CN China Mobile Communications Grou 8151 7144 6235 UNINET, MX 22773 3334 3171 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2361 2173 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56041 1669 1579 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1450 1434 LINKdotNET-AS, EG 56047 1481 1431 CMNET-HUNAN-AP China Mobile communications corp Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 41.67.248.0/22 Origin: 15964 CAMNET-AS, CM 41.67.248.0/22 Transit: 37662 WIOCC-AS, MU 41.67.252.0/23 Origin: 15964 CAMNET-AS, CM 41.67.252.0/23 Transit: 37662 WIOCC-AS, MU 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:30 /11:42 /12:149 /13:210 /14:579 /15:1101 /16:7617 /17:3497 /18:4273 /19:7767 /20:12790 /21:15913 /22:28654 /23:29357 /24:165286 /25:63 /26:80 /27:35 /28:13 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3874 7144 UNINET, MX 22773 2490 3334 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2344 13573 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1026 2563 AS-COLOCROSSING, US 19901 1011 1315 BRSPD-PUBLIC, US 10620 992 1710 Telmex Colombia S.A., CO 209 963 1657 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:21 2:451 3:818 4:5 5:797 6:149 7:5 8:656 11:171 12:976 13:391 14:113 15:307 16:247 17:4 18:885 20:188 21:4 22:188 23:2652 24:686 27:26 29:19 31:522 32:18 33:1 34:10 35:175 36:2027 37:779 38:2551 39:551 40:70 41:1003 42:21 43:229 44:30 45:4363 46:1024 47:98 49:21 50:359 51:387 52:1383 54:314 55:1098 56:11 57:71 58:16 59:37 60:31 61:79 62:547 63:789 64:1914 65:1149 66:1607 67:1097 68:375 69:1262 70:448 71:192 72:719 74:956 75:320 76:260 77:520 78:369 79:253 80:299 81:370 82:712 83:213 84:338 85:484 86:243 87:212 88:294 89:722 90:106 91:947 92:654 93:492 94:949 95:674 96:289 97:59 98:502 99:188 100:42 101:16 102:371 103:1283 104:1691 105:205 106:41 107:1547 108:557 109:442 110:40 111:1925 112:573 113:36 114:52 115:27 116:58 117:1053 118:60 119:84 120:1400 121:49 122:77 123:128 124:68 125:25 128:512 129:400 130:666 131:1040 132:570 133:213 134:464 135:127 136:632 137:507 138:997 139:439 140:720 141:364 142:1041 143:790 144:426 145:126 146:691 147:523 148:991 149:760 150:208 151:789 152:615 153:144 154:1402 155:859 156:1189 157:411 158:550 159:746 160:825 161:662 162:1068 163:432 164:725 165:572 166:818 167:701 168:1562 169:159 170:1774 171:114 172:1351 173:815 174:362 175:86 176:784 177:1127 178:606 179:860 180:41 181:2274 182:28 183:1032 184:462 185:3531 186:2710 187:1603 188:832 189:1949 190:5811 191:518 192:5280 193:1901 194:1254 195:938 196:732 197:1281 198:2744 199:5012 200:4645 201:3780 202:970 203:744 204:2214 205:1847 206:1586 207:1631 208:1594 209:2031 210:335 211:447 212:999 213:781 214:921 215:35 216:2597 217:447 218:548 219:19 220:34 221:414 222:24 223:983 End of report