IPv4 R&E Routing Table Report 20:15 GMT Sat 12 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: 277345 Prefixes after maximum aggregation (per Origin AS): 120838 Deaggregation factor: 2.30 Unique aggregates announced (without unneeded subnets): 143673 Number of IPv4 prefixes with a valid ROA: 130224 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 147079 Total ASes present in the Internet Routing Table: 20956 Prefixes per ASN: 13.23 Origin-only ASes present in the Internet Routing Table: 18037 Origin ASes announcing only one prefix: 8081 Transit ASes present in the Internet Routing Table: 2919 Transit-only ASes present in the Internet Routing Table: 730 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: 354 Number of instances of unregistered ASNs: 386 Number of 32-bit ASNs allocated by the RIRs: 46816 Number of 32-bit ASNs visible in the Routing Table: 8405 Prefixes from 32-bit ASNs in the Routing Table: 33115 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: 1641540869 Equivalent to 97 /8s, 215 /16s and 237 /24s Percentage of available address space announced: 44.3 Percentage of allocated address space announced: 44.3 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: 88375 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 34741 Total APNIC prefixes after maximum aggregation: 7749 APNIC Deaggregation factor: 4.48 Prefixes being announced from the APNIC address blocks: 33451 Unique aggregates announced from the APNIC address blocks: 8263 APNIC Region origin ASes present in the Internet Routing Table: 1254 APNIC Prefixes per ASN: 26.68 APNIC Region origin ASes announcing only one prefix: 496 APNIC Region transit ASes present in the Internet Routing Table: 199 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: 592 Number of APNIC addresses announced to Internet: 173866604 Equivalent to 10 /8s, 92 /16s and 254 /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: 126309 Total ARIN prefixes after maximum aggregation: 66416 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124896 Unique aggregates announced from the ARIN address blocks: 67659 ARIN Region origin ASes present in the Internet Routing Table: 9320 ARIN Prefixes per ASN: 13.40 ARIN Region origin ASes announcing only one prefix: 3871 ARIN Region transit ASes present in the Internet Routing Table: 881 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: 2189 Number of ARIN addresses announced to Internet: 1028142857 Equivalent to 61 /8s, 72 /16s and 55 /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: 49918 Total RIPE prefixes after maximum aggregation: 27311 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 51322 Unique aggregates announced from the RIPE address blocks: 38074 RIPE Region origin ASes present in the Internet Routing Table: 4658 RIPE Prefixes per ASN: 11.02 RIPE Region origin ASes announcing only one prefix: 1958 RIPE Region transit ASes present in the Internet Routing Table: 694 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: 1911 Number of RIPE addresses announced to Internet: 286024016 Equivalent to 17 /8s, 12 /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: 56583 Total LACNIC prefixes after maximum aggregation: 16689 LACNIC Deaggregation factor: 3.39 Prefixes being announced from the LACNIC address blocks: 54888 Unique aggregates announced from the LACNIC address blocks: 24929 LACNIC Region origin ASes present in the Internet Routing Table: 4579 LACNIC Prefixes per ASN: 11.99 LACNIC Region origin ASes announcing only one prefix: 1649 LACNIC Region transit ASes present in the Internet Routing Table: 925 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: 3565 Number of LACNIC addresses announced to Internet: 108868416 Equivalent to 6 /8s, 125 /16s and 51 /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: 9440 Total AfriNIC prefixes after maximum aggregation: 2412 AfriNIC Deaggregation factor: 3.91 Prefixes being announced from the AfriNIC address blocks: 12688 Unique aggregates announced from the AfriNIC address blocks: 4650 AfriNIC Region origin ASes present in the Internet Routing Table: 282 AfriNIC Prefixes per ASN: 44.99 AfriNIC Region origin ASes announcing only one prefix: 107 AfriNIC Region transit ASes present in the Internet Routing Table: 73 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 148 Number of AfriNIC addresses announced to Internet: 44525312 Equivalent to 2 /8s, 167 /16s and 103 /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 11566 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2590 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 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 611 2169 463 SINET-AS Research Organization of Informa 17561 558 36 177 LCS-AS-AP LARUS Limited, HK 45102 536 884 140 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 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 13658 40959 5255 AMAZON-02, US 22773 3335 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2849 216 1724 USDA-1, US 36352 2562 210 1141 AS-COLOCROSSING, US 367 2470 3082 1154 DNIC-ASBLK-00306-00371, US 6167 1927 4012 517 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1731 22854 1283 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 1042 2082 806 GTT-BACKBONE GTT, US 34984 926 116 597 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 25019 843 1301 130 SAUDINETSTC-AS, SA 8452 838 1841 16 TE-AS TE-AS, EG 212238 658 47 582 CDNEXT, GB 8376 574 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 7475 2011 895 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 1197 371 22 Telefonica del Peru S.A.A., PE 26615 1022 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 649 92 46 ENTEL CHILE S.A., CL 28006 647 77 297 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 1067 100 72 ORANGE-COTE-IVOIRE, CI 24835 918 503 31 RAYA-AS, EG 37069 600 1112 11 MOBINIL, EG 24863 572 389 22 LINKdotNET-AS, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 568 82 3 KENET-AS, KE 36992 513 802 326 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 2018 375 318 69 TENET-1, ZA 37693 343 599 42 TUNISIANA, TN 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 13658 40959 5255 AMAZON-02, US 9808 11566 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7475 2011 895 UNINET, MX 22773 3335 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2849 216 1724 USDA-1, US 56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati 36352 2562 210 1141 AS-COLOCROSSING, US 367 2470 3082 1154 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 11566 11451 CHINAMOBILE-CN China Mobile Communications Grou 8151 7475 6580 UNINET, MX 22773 3335 3170 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2590 2402 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 2562 1421 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 /12:159 /13:215 /14:584 /15:1114 /16:7719 /17:3482 /18:4244 /19:7745 /20:12850 /21:16121 /22:27437 /23:29288 /24:166048 /25:64 /26:81 /27:37 /28:17 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4016 7475 UNINET, MX 22773 2489 3335 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2342 13658 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1024 1343 BRSPD-PUBLIC, US 36352 1024 2562 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 2:430 3:847 4:5 5:697 6:149 7:5 8:649 11:171 12:971 13:400 14:116 15:308 16:247 17:3 18:891 20:188 21:4 22:188 23:2655 24:687 27:43 29:19 31:526 32:18 33:1 34:10 35:180 36:2317 37:734 38:2592 39:553 40:80 41:998 42:21 43:229 44:30 45:4327 46:989 47:108 49:26 50:404 51:388 52:1383 54:318 55:1109 56:11 57:24 58:16 59:35 60:33 61:65 62:560 63:781 64:1932 65:1135 66:1604 67:1092 68:386 69:1271 70:455 71:191 72:713 74:958 75:321 76:243 77:485 78:369 79:236 80:286 81:354 82:701 83:232 84:360 85:470 86:240 87:217 88:301 89:712 90:106 91:972 92:666 93:488 94:1051 95:734 96:276 97:53 98:507 99:194 100:42 101:26 102:380 103:1312 104:1695 105:190 106:40 107:1532 108:518 109:432 110:40 111:1940 112:618 113:37 114:56 115:29 116:62 117:1077 118:69 119:82 120:1419 121:50 122:63 123:131 124:66 125:25 126:1 128:525 129:396 130:670 131:1024 132:554 133:212 134:476 135:127 136:674 137:537 138:1021 139:448 140:721 141:369 142:1024 143:789 144:443 145:126 146:686 147:517 148:986 149:739 150:184 151:815 152:626 153:145 154:1344 155:913 156:992 157:393 158:566 159:736 160:827 161:655 162:1083 163:439 164:728 165:576 166:810 167:704 168:1572 169:164 170:1760 171:108 172:1321 173:802 174:361 175:87 176:785 177:1079 178:494 179:874 180:41 181:2257 182:28 183:1049 184:459 185:3503 186:2832 187:1699 188:827 189:2000 190:6024 191:532 192:5266 193:1875 194:1265 195:956 196:706 197:1079 198:2740 199:5023 200:4728 201:3831 202:1015 203:710 204:2214 205:2057 206:1570 207:1624 208:1511 209:2022 210:366 211:461 212:1010 213:798 214:949 215:35 216:2581 217:451 218:548 219:28 220:37 221:449 222:29 223:1038 End of report