IPv4 R&E Routing Table Report 20:15 GMT Sun 20 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: 279051 Prefixes after maximum aggregation (per Origin AS): 120867 Deaggregation factor: 2.31 Unique aggregates announced (without unneeded subnets): 143543 Number of IPv4 prefixes with a valid ROA: 130745 Number of IPv4 prefixes with an invalid ROA: 209 Number of IPv4 prefixes with no ROA: 148097 Total ASes present in the Internet Routing Table: 20999 Prefixes per ASN: 13.29 Origin-only ASes present in the Internet Routing Table: 18072 Origin ASes announcing only one prefix: 8095 Transit ASes present in the Internet Routing Table: 2927 Transit-only ASes present in the Internet Routing Table: 725 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: 46910 Number of 32-bit ASNs visible in the Routing Table: 8446 Prefixes from 32-bit ASNs in the Routing Table: 33700 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: 100 Number of addresses announced to Internet: 1642562565 Equivalent to 97 /8s, 231 /16s and 132 /24s Percentage of available address space announced: 44.4 Percentage of allocated address space announced: 44.4 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: 88568 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 34685 Total APNIC prefixes after maximum aggregation: 7587 APNIC Deaggregation factor: 4.57 Prefixes being announced from the APNIC address blocks: 33574 Unique aggregates announced from the APNIC address blocks: 7965 APNIC Region origin ASes present in the Internet Routing Table: 1236 APNIC Prefixes per ASN: 27.16 APNIC Region origin ASes announcing only one prefix: 486 APNIC Region transit ASes present in the Internet Routing Table: 198 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: 581 Number of APNIC addresses announced to Internet: 173186924 Equivalent to 10 /8s, 82 /16s and 159 /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: 126315 Total ARIN prefixes after maximum aggregation: 66520 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124895 Unique aggregates announced from the ARIN address blocks: 67972 ARIN Region origin ASes present in the Internet Routing Table: 9359 ARIN Prefixes per ASN: 13.34 ARIN Region origin ASes announcing only one prefix: 3891 ARIN Region transit ASes present in the Internet Routing Table: 882 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: 2203 Number of ARIN addresses announced to Internet: 1028340489 Equivalent to 61 /8s, 75 /16s and 59 /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: 49916 Total RIPE prefixes after maximum aggregation: 27383 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 51314 Unique aggregates announced from the RIPE address blocks: 38092 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: 1967 RIPE Region transit ASes present in the Internet Routing Table: 699 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1914 Number of RIPE addresses announced to Internet: 286573136 Equivalent to 17 /8s, 20 /16s and 194 /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: 56841 Total LACNIC prefixes after maximum aggregation: 16792 LACNIC Deaggregation factor: 3.39 Prefixes being announced from the LACNIC address blocks: 55181 Unique aggregates announced from the LACNIC address blocks: 24978 LACNIC Region origin ASes present in the Internet Routing Table: 4604 LACNIC Prefixes per ASN: 11.99 LACNIC Region origin ASes announcing only one prefix: 1643 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: 3595 Number of LACNIC addresses announced to Internet: 109045824 Equivalent to 6 /8s, 127 /16s and 232 /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: 10941 Total AfriNIC prefixes after maximum aggregation: 2321 AfriNIC Deaggregation factor: 4.71 Prefixes being announced from the AfriNIC address blocks: 13987 Unique aggregates announced from the AfriNIC address blocks: 4438 AfriNIC Region origin ASes present in the Internet Routing Table: 290 AfriNIC Prefixes per ASN: 48.23 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 74 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 153 Number of AfriNIC addresses announced to Internet: 45299712 Equivalent to 2 /8s, 179 /16s and 56 /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 11632 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati 56047 1629 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 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 13688 40976 5285 AMAZON-02, US 22773 3337 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2860 217 1731 USDA-1, US 36352 2546 209 1134 AS-COLOCROSSING, US 367 2472 3055 1160 DNIC-ASBLK-00306-00371, US 6167 1930 4018 516 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1668 22849 1256 ATT-INTERNET4, US 209 1655 4889 268 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 1166 91 951 AKAMAI-ASN1, NL 3257 1045 2082 809 GTT-BACKBONE GTT, US 34984 926 116 597 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 25019 806 1301 130 SAUDINETSTC-AS, SA 8452 719 1841 16 TE-AS TE-AS, EG 212238 655 46 579 CDNEXT, GB 8376 571 52 23 Jordan Data Communications, JO 51167 564 113 248 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 7484 2014 897 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1713 248 1233 Telmex Colombia S.A., CO 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1193 371 22 Telefonica del Peru S.A.A., PE 26615 1016 2487 55 TIM SA, BR 18881 886 1127 31 TELEFONICA BRASIL S.A, BR 11172 724 124 68 Alestra, S. de R.L. de C.V., MX 27651 650 92 46 ENTEL CHILE S.A., CL 28006 639 76 295 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 24835 1354 544 23 RAYA-AS, EG 29571 1157 101 66 ORANGE-COTE-IVOIRE, CI 37069 1101 1112 11 MOBINIL, EG 24863 983 388 22 LINKdotNET-AS, EG 36914 574 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36903 456 204 330 MT-MPLS, MA 36992 405 915 223 ETISALAT-MISR, EG 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 13688 40976 5285 AMAZON-02, US 9808 11632 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7484 2014 897 UNINET, MX 22773 3337 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2860 217 1731 USDA-1, US 56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati 36352 2546 209 1134 AS-COLOCROSSING, US 367 2472 3055 1160 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 11632 11517 CHINAMOBILE-CN China Mobile Communications Grou 8151 7484 6587 UNINET, MX 22773 3337 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 56047 1629 1579 CMNET-HUNAN-AP China Mobile communications corp 56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1930 1414 CELLCO-PART, 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 /12:159 /13:216 /14:591 /15:1117 /16:7743 /17:3485 /18:4199 /19:7752 /20:13321 /21:15846 /22:28205 /23:29401 /24:166674 /25:65 /26:82 /27:39 /28:18 /29:15 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4023 7484 UNINET, MX 22773 2493 3337 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2352 13688 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 1015 2546 AS-COLOCROSSING, US 10620 995 1713 Telmex Colombia S.A., CO 209 962 1655 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) ---------------------------------------------- 1:35 2:446 3:850 4:5 5:699 6:149 7:5 8:655 11:171 12:966 13:403 14:134 15:307 16:247 17:3 18:889 20:189 21:4 22:188 23:2661 24:686 27:43 29:19 31:524 32:18 33:1 34:10 35:175 36:2414 37:723 38:2629 39:556 40:84 41:1099 42:21 43:223 44:32 45:4407 46:1031 47:110 49:26 50:412 51:387 52:1382 54:321 55:1112 56:11 57:24 58:18 59:35 60:29 61:63 62:524 63:786 64:1963 65:1134 66:1620 67:1097 68:373 69:1255 70:459 71:190 72:712 74:967 75:320 76:237 77:438 78:361 79:240 80:285 81:352 82:728 83:239 84:353 85:473 86:247 87:219 88:303 89:720 90:107 91:969 92:674 93:491 94:1037 95:743 96:273 97:53 98:506 99:192 100:40 101:66 102:387 103:1294 104:1701 105:176 106:40 107:1530 108:440 109:432 110:44 111:1977 112:639 113:38 114:65 115:25 116:56 117:1100 118:69 119:82 120:1440 121:50 122:70 123:131 124:65 125:25 126:1 128:516 129:396 130:676 131:1019 132:563 133:212 134:474 135:127 136:675 137:532 138:1039 139:441 140:775 141:367 142:1026 143:811 144:439 145:118 146:682 147:519 148:1005 149:707 150:206 151:809 152:624 153:131 154:1228 155:910 156:1029 157:407 158:565 159:761 160:855 161:717 162:1062 163:444 164:722 165:579 166:814 167:702 168:1575 169:167 170:1757 171:111 172:1340 173:841 174:361 175:79 176:782 177:1056 178:487 179:877 180:41 181:2279 182:47 183:1059 184:458 185:3470 186:2862 187:1701 188:818 189:1995 190:6005 191:547 192:5295 193:1882 194:1259 195:942 196:718 197:1184 198:2762 199:5054 200:4690 201:3860 202:1000 203:726 204:2292 205:1842 206:1549 207:1618 208:1518 209:2020 210:362 211:465 212:1014 213:803 214:936 215:35 216:2568 217:444 218:550 219:18 220:36 221:455 222:24 223:1100 End of report