IPv4 R&E Routing Table Report 20:15 GMT Fri 18 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: 277947 Prefixes after maximum aggregation (per Origin AS): 120871 Deaggregation factor: 2.30 Unique aggregates announced (without unneeded subnets): 143618 Number of IPv4 prefixes with a valid ROA: 130700 Number of IPv4 prefixes with an invalid ROA: 209 Number of IPv4 prefixes with no ROA: 147038 Total ASes present in the Internet Routing Table: 20996 Prefixes per ASN: 13.24 Origin-only ASes present in the Internet Routing Table: 18065 Origin ASes announcing only one prefix: 8091 Transit ASes present in the Internet Routing Table: 2931 Transit-only ASes present in the Internet Routing Table: 718 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: 358 Number of instances of unregistered ASNs: 390 Number of 32-bit ASNs allocated by the RIRs: 46864 Number of 32-bit ASNs visible in the Routing Table: 8450 Prefixes from 32-bit ASNs in the Routing Table: 33298 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: 106 Number of addresses announced to Internet: 1643133701 Equivalent to 97 /8s, 240 /16s and 59 /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: 88513 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 34667 Total APNIC prefixes after maximum aggregation: 7576 APNIC Deaggregation factor: 4.58 Prefixes being announced from the APNIC address blocks: 33569 Unique aggregates announced from the APNIC address blocks: 7954 APNIC Region origin ASes present in the Internet Routing Table: 1242 APNIC Prefixes per ASN: 27.03 APNIC Region origin ASes announcing only one prefix: 492 APNIC Region transit ASes present in the Internet Routing Table: 202 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: 584 Number of APNIC addresses announced to Internet: 173097580 Equivalent to 10 /8s, 81 /16s and 66 /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: 126295 Total ARIN prefixes after maximum aggregation: 66492 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124887 Unique aggregates announced from the ARIN address blocks: 67960 ARIN Region origin ASes present in the Internet Routing Table: 9349 ARIN Prefixes per ASN: 13.36 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: 1028331785 Equivalent to 61 /8s, 75 /16s and 25 /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: 49745 Total RIPE prefixes after maximum aggregation: 27403 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 51250 Unique aggregates announced from the RIPE address blocks: 38180 RIPE Region origin ASes present in the Internet Routing Table: 4647 RIPE Prefixes per ASN: 11.03 RIPE Region origin ASes announcing only one prefix: 1953 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: 1912 Number of RIPE addresses announced to Internet: 286817104 Equivalent to 17 /8s, 24 /16s and 123 /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: 56919 Total LACNIC prefixes after maximum aggregation: 16800 LACNIC Deaggregation factor: 3.39 Prefixes being announced from the LACNIC address blocks: 55228 Unique aggregates announced from the LACNIC address blocks: 24978 LACNIC Region origin ASes present in the Internet Routing Table: 4610 LACNIC Prefixes per ASN: 11.98 LACNIC Region origin ASes announcing only one prefix: 1650 LACNIC Region transit ASes present in the Internet Routing Table: 930 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: 3592 Number of LACNIC addresses announced to Internet: 109071936 Equivalent to 6 /8s, 128 /16s and 78 /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: 9963 Total AfriNIC prefixes after maximum aggregation: 2335 AfriNIC Deaggregation factor: 4.27 Prefixes being announced from the AfriNIC address blocks: 12907 Unique aggregates announced from the AfriNIC address blocks: 4443 AfriNIC Region origin ASes present in the Internet Routing Table: 295 AfriNIC Prefixes per ASN: 43.75 AfriNIC Region origin ASes announcing only one prefix: 112 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 161 Number of AfriNIC addresses announced to Internet: 45697024 Equivalent to 2 /8s, 185 /16s and 72 /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 13671 40973 5264 AMAZON-02, US 22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2871 218 1735 USDA-1, US 36352 2552 209 1140 AS-COLOCROSSING, US 367 2488 3071 1167 DNIC-ASBLK-00306-00371, US 6167 1930 4018 516 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1672 22850 1259 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 1170 91 953 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 814 1301 130 SAUDINETSTC-AS, SA 8452 719 1841 16 TE-AS TE-AS, EG 58224 658 427 474 TCI, IR 212238 655 46 579 CDNEXT, GB 8376 571 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 7485 2011 898 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 1195 371 22 Telefonica del Peru S.A.A., PE 26615 1017 2487 55 TIM SA, BR 18881 886 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 24835 1205 544 23 RAYA-AS, EG 29571 1157 101 66 ORANGE-COTE-IVOIRE, CI 37069 702 1112 11 MOBINIL, EG 36914 574 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 24863 517 389 22 LINKdotNET-AS, EG 36992 491 1027 213 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 13671 40973 5264 AMAZON-02, US 9808 11632 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7485 2011 898 UNINET, MX 22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2871 218 1735 USDA-1, US 56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati 36352 2552 209 1140 AS-COLOCROSSING, US 367 2488 3071 1167 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 7485 6587 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 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 /15:1116 /16:7724 /17:3485 /18:4221 /19:7739 /20:12982 /21:15905 /22:27625 /23:29453 /24:166389 /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 4025 7485 UNINET, MX 22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2336 13671 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 1021 2552 AS-COLOCROSSING, US 10620 995 1713 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 2:446 3:850 4:5 5:709 6:150 7:5 8:653 11:171 12:967 13:398 14:135 15:307 16:247 17:3 18:888 20:189 21:4 22:188 23:2661 24:685 27:43 29:19 31:519 32:18 33:1 34:10 35:177 36:2417 37:711 38:2630 39:556 40:84 41:1051 42:21 43:223 44:32 45:4391 46:995 47:109 49:26 50:414 51:387 52:1382 54:321 55:1113 56:11 57:24 58:18 59:35 60:31 61:63 62:512 63:786 64:1959 65:1131 66:1615 67:1097 68:370 69:1278 70:459 71:189 72:711 74:967 75:319 76:251 77:453 78:366 79:237 80:286 81:352 82:726 83:225 84:357 85:479 86:245 87:217 88:303 89:718 90:107 91:936 92:661 93:486 94:992 95:745 96:276 97:53 98:508 99:193 100:40 101:66 102:395 103:1303 104:1709 105:178 106:40 107:1530 108:440 109:437 110:44 111:1978 112:639 113:38 114:65 115:25 116:56 117:1100 118:69 119:82 120:1440 121:50 122:70 123:131 124:65 125:25 126:1 128:527 129:351 130:677 131:1016 132:559 133:212 134:474 135:127 136:675 137:531 138:1035 139:441 140:775 141:368 142:1024 143:815 144:439 145:118 146:686 147:519 148:1004 149:725 150:178 151:816 152:624 153:131 154:1209 155:911 156:1006 157:406 158:564 159:762 160:855 161:684 162:1060 163:442 164:720 165:580 166:817 167:702 168:1572 169:166 170:1767 171:111 172:1334 173:833 174:361 175:84 176:788 177:1055 178:485 179:880 180:41 181:2280 182:47 183:1059 184:457 185:3497 186:2863 187:1721 188:818 189:1994 190:6006 191:553 192:5286 193:1828 194:1245 195:951 196:708 197:1195 198:2754 199:5066 200:4698 201:3856 202:1001 203:725 204:2287 205:1847 206:1548 207:1616 208:1524 209:2021 210:362 211:465 212:1007 213:787 214:939 215:35 216:2561 217:447 218:550 219:18 220:36 221:455 222:24 223:1100 End of report