IPv4 R&E Routing Table Report 20:15 GMT Thu 10 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: 277788 Prefixes after maximum aggregation (per Origin AS): 120680 Deaggregation factor: 2.30 Unique aggregates announced (without unneeded subnets): 143790 Number of IPv4 prefixes with a valid ROA: 130232 Number of IPv4 prefixes with an invalid ROA: 46 Number of IPv4 prefixes with no ROA: 147510 Total ASes present in the Internet Routing Table: 20970 Prefixes per ASN: 13.25 Origin-only ASes present in the Internet Routing Table: 18057 Origin ASes announcing only one prefix: 8091 Transit ASes present in the Internet Routing Table: 2913 Transit-only ASes present in the Internet Routing Table: 728 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: 357 Number of instances of unregistered ASNs: 389 Number of 32-bit ASNs allocated by the RIRs: 46773 Number of 32-bit ASNs visible in the Routing Table: 8414 Prefixes from 32-bit ASNs in the Routing Table: 33250 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: 99 Number of addresses announced to Internet: 1641985029 Equivalent to 97 /8s, 222 /16s and 180 /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: 89454 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33954 Total APNIC prefixes after maximum aggregation: 7455 APNIC Deaggregation factor: 4.55 Prefixes being announced from the APNIC address blocks: 33040 Unique aggregates announced from the APNIC address blocks: 7893 APNIC Region origin ASes present in the Internet Routing Table: 1246 APNIC Prefixes per ASN: 26.52 APNIC Region origin ASes announcing only one prefix: 498 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: 593 Number of APNIC addresses announced to Internet: 173177452 Equivalent to 10 /8s, 82 /16s and 122 /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: 126377 Total ARIN prefixes after maximum aggregation: 66408 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124957 Unique aggregates announced from the ARIN address blocks: 67941 ARIN Region origin ASes present in the Internet Routing Table: 9326 ARIN Prefixes per ASN: 13.40 ARIN Region origin ASes announcing only one prefix: 3859 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: 2192 Number of ARIN addresses announced to Internet: 1028281353 Equivalent to 61 /8s, 74 /16s and 84 /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: 50756 Total RIPE prefixes after maximum aggregation: 27483 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 52255 Unique aggregates announced from the RIPE address blocks: 38306 RIPE Region origin ASes present in the Internet Routing Table: 4669 RIPE Prefixes per ASN: 11.19 RIPE Region origin ASes announcing only one prefix: 1969 RIPE Region transit ASes present in the Internet Routing Table: 697 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: 1912 Number of RIPE addresses announced to Internet: 287628368 Equivalent to 17 /8s, 36 /16s and 220 /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: 57165 Total LACNIC prefixes after maximum aggregation: 16706 LACNIC Deaggregation factor: 3.42 Prefixes being announced from the LACNIC address blocks: 55455 Unique aggregates announced from the LACNIC address blocks: 25068 LACNIC Region origin ASes present in the Internet Routing Table: 4582 LACNIC Prefixes per ASN: 12.10 LACNIC Region origin ASes announcing only one prefix: 1657 LACNIC Region transit ASes present in the Internet Routing Table: 920 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: 3569 Number of LACNIC addresses announced to Internet: 109600064 Equivalent to 6 /8s, 136 /16s and 93 /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: 9179 Total AfriNIC prefixes after maximum aggregation: 2364 AfriNIC Deaggregation factor: 3.88 Prefixes being announced from the AfriNIC address blocks: 11982 Unique aggregates announced from the AfriNIC address blocks: 4485 AfriNIC Region origin ASes present in the Internet Routing Table: 284 AfriNIC Prefixes per ASN: 42.19 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 72 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: 43185152 Equivalent to 2 /8s, 146 /16s and 244 /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 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 13662 40959 5252 AMAZON-02, US 22773 3340 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2834 215 1735 USDA-1, US 36352 2561 210 1143 AS-COLOCROSSING, US 367 2504 3135 1176 DNIC-ASBLK-00306-00371, US 6167 1927 4012 517 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1773 22857 1321 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 1173 91 956 AKAMAI-ASN1, NL 3257 1042 2082 806 GTT-BACKBONE GTT, US 34984 925 116 600 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 8452 837 1841 16 TE-AS TE-AS, EG 25019 829 1301 130 SAUDINETSTC-AS, SA 212238 661 47 585 CDNEXT, GB 8376 577 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 7479 2014 906 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1711 248 1231 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 1022 2487 55 TIM SA, BR 18881 891 1127 31 TELEFONICA BRASIL S.A, BR 11172 722 124 69 Alestra, S. de R.L. de C.V., MX 27651 648 91 45 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 1067 100 72 ORANGE-COTE-IVOIRE, CI 24835 805 414 71 RAYA-AS, EG 37069 600 1112 11 MOBINIL, EG 36914 573 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 24863 521 389 22 LINKdotNET-AS, EG 36935 504 521 41 Vodafone-, EG 36903 456 204 330 MT-MPLS, MA 2018 374 318 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 13662 40959 5252 AMAZON-02, US 9808 11566 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7479 2014 906 UNINET, MX 22773 3340 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2834 215 1735 USDA-1, US 56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati 36352 2561 210 1143 AS-COLOCROSSING, US 367 2504 3135 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 11566 11451 CHINAMOBILE-CN China Mobile Communications Grou 8151 7479 6573 UNINET, MX 22773 3340 3175 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 2561 1418 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 /13:214 /14:586 /15:1108 /16:7723 /17:3498 /18:4236 /19:7809 /20:12918 /21:15928 /22:27931 /23:29375 /24:165965 /25:64 /26:81 /27:37 /28:16 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4014 7479 UNINET, MX 22773 2494 3340 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2347 13662 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 2561 AS-COLOCROSSING, US 10620 993 1711 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 2:432 3:844 4:5 5:798 6:148 7:5 8:652 11:171 12:973 13:400 14:113 15:308 16:247 17:3 18:889 20:188 21:4 22:188 23:2653 24:688 27:27 29:19 31:522 32:18 33:1 34:10 35:180 36:2319 37:759 38:2578 39:552 40:78 41:893 42:21 43:229 44:31 45:4255 46:1007 47:107 49:21 50:362 51:388 52:1383 54:318 55:1107 56:11 57:24 58:16 59:35 60:33 61:65 62:565 63:783 64:1933 65:1144 66:1599 67:1107 68:387 69:1269 70:458 71:191 72:720 74:962 75:320 76:242 77:505 78:368 79:235 80:308 81:377 82:709 83:224 84:351 85:474 86:245 87:228 88:302 89:712 90:106 91:961 92:689 93:484 94:1000 95:678 96:289 97:53 98:506 99:194 100:48 101:26 102:387 103:1345 104:1709 105:206 106:40 107:1545 108:538 109:453 110:40 111:1941 112:618 113:38 114:56 115:29 116:58 117:1077 118:69 119:82 120:1419 121:50 122:63 123:131 124:66 125:25 126:1 128:521 129:397 130:672 131:1027 132:560 133:212 134:475 135:127 136:675 137:535 138:1018 139:443 140:722 141:369 142:1022 143:807 144:442 145:124 146:686 147:517 148:987 149:756 150:182 151:813 152:626 153:146 154:1137 155:912 156:871 157:400 158:565 159:738 160:826 161:660 162:1090 163:440 164:726 165:578 166:806 167:718 168:1562 169:163 170:1775 171:109 172:1338 173:814 174:362 175:87 176:804 177:1107 178:621 179:890 180:41 181:2277 182:28 183:1049 184:460 185:3478 186:2837 187:1706 188:836 189:2008 190:6100 191:538 192:5268 193:1867 194:1257 195:958 196:720 197:1071 198:2745 199:5009 200:4714 201:3815 202:1003 203:715 204:2225 205:1847 206:1583 207:1636 208:1576 209:2036 210:351 211:461 212:1020 213:776 214:940 215:35 216:2602 217:449 218:548 219:19 220:37 221:449 222:24 223:1039 End of report