IPv4 R&E Routing Table Report 20:15 GMT Wed 16 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: 277373 Prefixes after maximum aggregation (per Origin AS): 120786 Deaggregation factor: 2.30 Unique aggregates announced (without unneeded subnets): 143541 Number of IPv4 prefixes with a valid ROA: 130660 Number of IPv4 prefixes with an invalid ROA: 213 Number of IPv4 prefixes with no ROA: 146500 Total ASes present in the Internet Routing Table: 21044 Prefixes per ASN: 13.18 Origin-only ASes present in the Internet Routing Table: 18112 Origin ASes announcing only one prefix: 8113 Transit ASes present in the Internet Routing Table: 2932 Transit-only ASes present in the Internet Routing Table: 727 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: 353 Number of instances of unregistered ASNs: 385 Number of 32-bit ASNs allocated by the RIRs: 46838 Number of 32-bit ASNs visible in the Routing Table: 8492 Prefixes from 32-bit ASNs in the Routing Table: 33624 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: 104 Number of addresses announced to Internet: 1646631685 Equivalent to 98 /8s, 37 /16s and 155 /24s Percentage of available address space announced: 44.5 Percentage of allocated address space announced: 44.5 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: 88506 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 34622 Total APNIC prefixes after maximum aggregation: 7638 APNIC Deaggregation factor: 4.53 Prefixes being announced from the APNIC address blocks: 33465 Unique aggregates announced from the APNIC address blocks: 7966 APNIC Region origin ASes present in the Internet Routing Table: 1243 APNIC Prefixes per ASN: 26.92 APNIC Region origin ASes announcing only one prefix: 494 APNIC Region transit ASes present in the Internet Routing Table: 200 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 590 Number of APNIC addresses announced to Internet: 173095276 Equivalent to 10 /8s, 81 /16s and 57 /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: 125968 Total ARIN prefixes after maximum aggregation: 66309 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124593 Unique aggregates announced from the ARIN address blocks: 67783 ARIN Region origin ASes present in the Internet Routing Table: 9342 ARIN Prefixes per ASN: 13.34 ARIN Region origin ASes announcing only one prefix: 3884 ARIN Region transit ASes present in the Internet Routing Table: 883 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: 2201 Number of ARIN addresses announced to Internet: 1028036873 Equivalent to 61 /8s, 70 /16s and 153 /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: 49802 Total RIPE prefixes after maximum aggregation: 27437 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 51306 Unique aggregates announced from the RIPE address blocks: 38221 RIPE Region origin ASes present in the Internet Routing Table: 4651 RIPE Prefixes per ASN: 11.03 RIPE Region origin ASes announcing only one prefix: 1956 RIPE Region transit ASes present in the Internet Routing Table: 701 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: 1917 Number of RIPE addresses announced to Internet: 286611280 Equivalent to 17 /8s, 21 /16s and 87 /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: 57134 Total LACNIC prefixes after maximum aggregation: 16884 LACNIC Deaggregation factor: 3.38 Prefixes being announced from the LACNIC address blocks: 55420 Unique aggregates announced from the LACNIC address blocks: 25111 LACNIC Region origin ASes present in the Internet Routing Table: 4659 LACNIC Prefixes per ASN: 11.90 LACNIC Region origin ASes announcing only one prefix: 1674 LACNIC Region transit ASes present in the Internet Routing Table: 931 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: 3630 Number of LACNIC addresses announced to Internet: 109155392 Equivalent to 6 /8s, 129 /16s and 148 /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: 9494 Total AfriNIC prefixes after maximum aggregation: 2257 AfriNIC Deaggregation factor: 4.21 Prefixes being announced from the AfriNIC address blocks: 12485 Unique aggregates announced from the AfriNIC address blocks: 4358 AfriNIC Region origin ASes present in the Internet Routing Table: 289 AfriNIC Prefixes per ASN: 43.20 AfriNIC Region origin ASes announcing only one prefix: 105 AfriNIC Region transit ASes present in the Internet Routing Table: 70 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 154 Number of AfriNIC addresses announced to Internet: 49619712 Equivalent to 2 /8s, 245 /16s and 35 /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 11627 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1501 192 50 CMNET-HUNAN-AP China Mobile communication 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2169 463 SINET-AS Research Organization of Informa 45102 536 884 140 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 132525 456 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 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 13611 40955 5247 AMAZON-02, US 22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3224 54766 2475 DNIC-AS-00749, US 4155 2865 217 1731 USDA-1, US 36352 2555 210 1143 AS-COLOCROSSING, US 367 2503 3056 1179 DNIC-ASBLK-00306-00371, US 6167 1927 4012 517 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1728 22853 1280 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 1184 93 962 AKAMAI-ASN1, NL 3257 1047 2083 810 GTT-BACKBONE GTT, US 34984 925 116 596 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 25019 809 1301 130 SAUDINETSTC-AS, SA 8452 715 1841 16 TE-AS TE-AS, EG 58224 658 427 474 TCI, IR 212238 656 46 580 CDNEXT, GB 8376 569 52 23 Jordan Data Communications, JO 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 7490 2012 899 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1712 248 1232 Telmex Colombia S.A., CO 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 21 Telefonica del Peru S.A.A., PE 26615 1017 2487 55 TIM SA, BR 18881 885 1127 31 TELEFONICA BRASIL S.A, BR 11172 725 124 69 Alestra, S. de R.L. de C.V., MX 27651 650 92 46 ENTEL CHILE S.A., CL 28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE 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 29571 1154 101 66 ORANGE-COTE-IVOIRE, CI 24835 941 544 23 RAYA-AS, EG 37069 702 1112 11 MOBINIL, EG 36914 571 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 24863 509 389 22 LINKdotNET-AS, EG 36992 504 1064 220 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 2018 375 318 69 TENET-1, ZA 36935 357 515 9 Vodafone-, EG 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 13611 40955 5247 AMAZON-02, US 9808 11627 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7490 2012 899 UNINET, MX 22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3224 54766 2475 DNIC-AS-00749, US 4155 2865 217 1731 USDA-1, US 56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati 36352 2555 210 1143 AS-COLOCROSSING, US 367 2503 3056 1179 DNIC-ASBLK-00306-00371, US 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 11627 11512 CHINAMOBILE-CN China Mobile Communications Grou 8151 7490 6591 UNINET, MX 22773 3338 3174 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2677 2489 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 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1501 1451 CMNET-HUNAN-AP China Mobile communications corp 36352 2555 1412 AS-COLOCROSSING, US 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US 23.147.226.0/24 Origin: 27392 639-DATACENTERS, US 23.147.226.0/24 Transit: 3356 LEVEL3, US 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 /8:14 /9:11 /10:31 /11:51 /12:162 /13:219 /14:590 /15:1108 /16:7713 /17:3480 /18:4217 /19:7703 /20:12970 /21:15878 /22:27426 /23:29365 /24:166200 /25:65 /26:82 /27:38 /28:18 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4030 7490 UNINET, MX 22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2329 13611 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1028 1350 BRSPD-PUBLIC, US 36352 1022 2555 AS-COLOCROSSING, US 10620 994 1712 Telmex Colombia S.A., CO 209 962 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) ---------------------------------------------- 1:36 2:445 3:843 4:5 5:714 6:150 7:5 8:648 11:171 12:966 13:390 14:134 15:307 16:247 17:3 18:882 20:188 21:4 22:188 23:2667 24:689 27:43 29:19 31:518 32:18 33:1 34:10 35:175 36:2337 37:702 38:2611 39:554 40:84 41:1030 42:21 43:226 44:29 45:4414 46:995 47:110 49:26 50:417 51:390 52:1383 54:318 55:1108 56:11 57:24 58:18 59:35 60:31 61:62 62:543 63:784 64:1928 65:1126 66:1607 67:1095 68:370 69:1258 70:459 71:190 72:705 74:969 75:319 76:243 77:486 78:375 79:237 80:287 81:358 82:721 83:225 84:364 85:479 86:244 87:217 88:303 89:717 90:107 91:933 92:659 93:486 94:987 95:745 96:274 97:53 98:509 99:197 100:42 101:64 102:393 103:1332 104:1709 105:172 106:40 107:1531 108:518 109:436 110:44 111:1954 112:634 113:37 114:63 115:25 116:59 117:1098 118:69 119:80 120:1424 121:50 122:70 123:131 124:65 125:25 126:1 128:526 129:351 130:676 131:1021 132:558 133:212 134:475 135:127 136:676 137:532 138:1027 139:446 140:775 141:371 142:1024 143:806 144:439 145:120 146:689 147:521 148:988 149:727 150:180 151:816 152:627 153:134 154:1238 155:906 156:1016 157:396 158:564 159:757 160:855 161:658 162:1067 163:442 164:726 165:578 166:816 167:704 168:1574 169:165 170:1784 171:109 172:1330 173:834 174:360 175:85 176:788 177:1075 178:487 179:882 180:41 181:2272 182:47 183:1054 184:461 185:3502 186:2869 187:1717 188:812 189:2002 190:6021 191:553 192:5285 193:1826 194:1255 195:946 196:719 197:1083 198:2756 199:5045 200:4728 201:3879 202:1004 203:709 204:2226 205:1850 206:1541 207:1617 208:1517 209:2007 210:362 211:464 212:1000 213:785 214:938 215:35 216:2572 217:451 218:550 219:18 220:37 221:455 222:24 223:1098 End of report