IPv4 R&E Routing Table Report 20:15 GMT Tue 22 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: 278643 Prefixes after maximum aggregation (per Origin AS): 120393 Deaggregation factor: 2.31 Unique aggregates announced (without unneeded subnets): 142996 Number of IPv4 prefixes with a valid ROA: 130416 Number of IPv4 prefixes with an invalid ROA: 208 Number of IPv4 prefixes with no ROA: 148019 Total ASes present in the Internet Routing Table: 20877 Prefixes per ASN: 13.35 Origin-only ASes present in the Internet Routing Table: 17988 Origin ASes announcing only one prefix: 8067 Transit ASes present in the Internet Routing Table: 2889 Transit-only ASes present in the Internet Routing Table: 713 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: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 348 Number of instances of unregistered ASNs: 380 Number of 32-bit ASNs allocated by the RIRs: 46908 Number of 32-bit ASNs visible in the Routing Table: 8353 Prefixes from 32-bit ASNs in the Routing Table: 33137 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: 1642740997 Equivalent to 97 /8s, 234 /16s and 61 /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: 88465 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 34852 Total APNIC prefixes after maximum aggregation: 7534 APNIC Deaggregation factor: 4.63 Prefixes being announced from the APNIC address blocks: 33751 Unique aggregates announced from the APNIC address blocks: 7906 APNIC Region origin ASes present in the Internet Routing Table: 1236 APNIC Prefixes per ASN: 27.31 APNIC Region origin ASes announcing only one prefix: 492 APNIC Region transit ASes present in the Internet Routing Table: 199 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: 578 Number of APNIC addresses announced to Internet: 173301356 Equivalent to 10 /8s, 84 /16s and 94 /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: 126416 Total ARIN prefixes after maximum aggregation: 66518 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124973 Unique aggregates announced from the ARIN address blocks: 67969 ARIN Region origin ASes present in the Internet Routing Table: 9342 ARIN Prefixes per ASN: 13.38 ARIN Region origin ASes announcing only one prefix: 3892 ARIN Region transit ASes present in the Internet Routing Table: 878 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: 2199 Number of ARIN addresses announced to Internet: 1028314633 Equivalent to 61 /8s, 74 /16s and 214 /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: 49650 Total RIPE prefixes after maximum aggregation: 27129 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 51041 Unique aggregates announced from the RIPE address blocks: 37900 RIPE Region origin ASes present in the Internet Routing Table: 4641 RIPE Prefixes per ASN: 11.00 RIPE Region origin ASes announcing only one prefix: 1955 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: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1915 Number of RIPE addresses announced to Internet: 286286160 Equivalent to 17 /8s, 16 /16s and 97 /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: 56525 Total LACNIC prefixes after maximum aggregation: 16641 LACNIC Deaggregation factor: 3.40 Prefixes being announced from the LACNIC address blocks: 54826 Unique aggregates announced from the LACNIC address blocks: 24741 LACNIC Region origin ASes present in the Internet Routing Table: 4528 LACNIC Prefixes per ASN: 12.11 LACNIC Region origin ASes announcing only one prefix: 1619 LACNIC Region transit ASes present in the Internet Routing Table: 907 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3512 Number of LACNIC addresses announced to Internet: 108845120 Equivalent to 6 /8s, 124 /16s and 216 /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: 10852 Total AfriNIC prefixes after maximum aggregation: 2308 AfriNIC Deaggregation factor: 4.70 Prefixes being announced from the AfriNIC address blocks: 13952 Unique aggregates announced from the AfriNIC address blocks: 4382 AfriNIC Region origin ASes present in the Internet Routing Table: 284 AfriNIC Prefixes per ASN: 49.13 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 72 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 149 Number of AfriNIC addresses announced to Internet: 45877248 Equivalent to 2 /8s, 188 /16s and 8 /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 11840 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati 56047 1631 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 468 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 13677 40975 5282 AMAZON-02, US 22773 3337 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2873 218 1732 USDA-1, US 36352 2553 209 1139 AS-COLOCROSSING, US 367 2499 3072 1176 DNIC-ASBLK-00306-00371, US 6167 1937 4026 519 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1666 22849 1254 ATT-INTERNET4, US 209 1654 4889 267 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 1046 2083 810 GTT-BACKBONE GTT, US 34984 926 116 597 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 8452 838 1841 16 TE-AS TE-AS, EG 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 655 46 579 CDNEXT, GB 8376 569 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 7451 2003 894 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1690 242 1218 Telmex Colombia S.A., CO 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 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 1355 544 23 RAYA-AS, EG 29571 1157 101 66 ORANGE-COTE-IVOIRE, CI 24863 1048 388 19 LINKdotNET-AS, EG 37069 953 1112 11 MOBINIL, EG 36914 579 82 3 KENET-AS, KE 20011 545 152 218 INTERNET-SOLUTIONS, ZA 36903 456 204 330 MT-MPLS, MA 36992 449 962 238 ETISALAT-MISR, EG 2018 375 318 69 TENET-1, ZA 36935 361 515 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 13677 40975 5282 AMAZON-02, US 9808 11840 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7451 2003 894 UNINET, MX 22773 3337 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2873 218 1732 USDA-1, US 56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati 36352 2553 209 1139 AS-COLOCROSSING, US 367 2499 3072 1176 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 11840 11725 CHINAMOBILE-CN China Mobile Communications Grou 8151 7451 6557 UNINET, MX 22773 3337 3173 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 1631 1581 CMNET-HUNAN-AP China Mobile communications corp 56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1937 1418 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 /14:592 /15:1119 /16:7747 /17:3482 /18:4220 /19:7768 /20:13197 /21:15848 /22:28149 /23:29292 /24:166513 /25:65 /26:81 /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 4012 7451 UNINET, MX 22773 2492 3337 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2357 13677 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1031 1356 BRSPD-PUBLIC, US 36352 1016 2553 AS-COLOCROSSING, US 10620 995 1690 Telmex Colombia S.A., CO 209 962 1654 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 2:442 3:850 4:5 5:704 6:150 7:5 8:653 11:171 12:967 13:406 14:134 15:307 16:247 17:3 18:890 20:162 21:4 22:188 23:2660 24:684 27:27 29:19 31:523 32:18 33:1 34:10 35:175 36:2543 37:709 38:2636 39:571 40:84 41:1083 42:21 43:223 44:33 45:4284 46:995 47:110 49:26 50:480 51:387 52:1378 54:317 55:1112 56:11 57:23 58:18 59:35 60:29 61:61 62:524 63:782 64:1953 65:1135 66:1613 67:1096 68:372 69:1261 70:459 71:189 72:712 74:961 75:319 76:242 77:432 78:367 79:238 80:284 81:355 82:723 83:234 84:354 85:476 86:243 87:218 88:303 89:701 90:107 91:973 92:668 93:484 94:1015 95:744 96:273 97:53 98:498 99:192 100:40 101:62 102:387 103:1286 104:1700 105:176 106:40 107:1530 108:519 109:442 110:46 111:1995 112:660 113:38 114:65 115:25 116:55 117:1112 118:60 119:83 120:1448 121:51 122:70 123:129 124:65 125:25 126:1 128:525 129:395 130:679 131:1023 132:560 133:212 134:470 135:127 136:620 137:528 138:1031 139:442 140:769 141:368 142:1026 143:809 144:440 145:120 146:684 147:517 148:1003 149:730 150:204 151:803 152:608 153:130 154:1258 155:915 156:963 157:407 158:575 159:760 160:860 161:686 162:1055 163:445 164:733 165:574 166:812 167:707 168:1544 169:163 170:1760 171:105 172:1340 173:838 174:356 175:86 176:802 177:1036 178:482 179:878 180:38 181:2277 182:46 183:1076 184:459 185:3464 186:2861 187:1690 188:811 189:1993 190:6030 191:548 192:5292 193:1870 194:1225 195:949 196:713 197:1145 198:2757 199:5063 200:4690 201:3819 202:1004 203:724 204:2284 205:1846 206:1586 207:1630 208:1530 209:2022 210:362 211:465 212:1020 213:794 214:938 215:37 216:2595 217:438 218:552 219:18 220:36 221:456 222:24 223:1100 End of report