IPv4 R&E Routing Table Report 20:15 GMT Thu 17 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: 277559 Prefixes after maximum aggregation (per Origin AS): 120999 Deaggregation factor: 2.29 Unique aggregates announced (without unneeded subnets): 143926 Number of IPv4 prefixes with a valid ROA: 130593 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 146756 Total ASes present in the Internet Routing Table: 21099 Prefixes per ASN: 13.16 Origin-only ASes present in the Internet Routing Table: 18152 Origin ASes announcing only one prefix: 8131 Transit ASes present in the Internet Routing Table: 2947 Transit-only ASes present in the Internet Routing Table: 723 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 (264930) 33 Prefixes from unregistered ASNs in the Routing Table: 355 Number of instances of unregistered ASNs: 387 Number of 32-bit ASNs allocated by the RIRs: 46856 Number of 32-bit ASNs visible in the Routing Table: 8537 Prefixes from 32-bit ASNs in the Routing Table: 33646 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: 102 Number of addresses announced to Internet: 1646715397 Equivalent to 98 /8s, 38 /16s and 226 /24s Percentage of available address space announced: 44.5 Percentage of allocated address space announced: 44.5 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: 88268 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 34624 Total APNIC prefixes after maximum aggregation: 7573 APNIC Deaggregation factor: 4.57 Prefixes being announced from the APNIC address blocks: 33530 Unique aggregates announced from the APNIC address blocks: 7953 APNIC Region origin ASes present in the Internet Routing Table: 1249 APNIC Prefixes per ASN: 26.85 APNIC Region origin ASes announcing only one prefix: 499 APNIC Region transit ASes present in the Internet Routing Table: 203 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 591 Number of APNIC addresses announced to Internet: 173160812 Equivalent to 10 /8s, 82 /16s and 57 /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: 126193 Total ARIN prefixes after maximum aggregation: 66413 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124837 Unique aggregates announced from the ARIN address blocks: 67998 ARIN Region origin ASes present in the Internet Routing Table: 9342 ARIN Prefixes per ASN: 13.36 ARIN Region origin ASes announcing only one prefix: 3883 ARIN Region transit ASes present in the Internet Routing Table: 884 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: 1028172809 Equivalent to 61 /8s, 72 /16s and 172 /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: 49831 Total RIPE prefixes after maximum aggregation: 27436 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 51334 Unique aggregates announced from the RIPE address blocks: 38265 RIPE Region origin ASes present in the Internet Routing Table: 4648 RIPE Prefixes per ASN: 11.04 RIPE Region origin ASes announcing only one prefix: 1957 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: 21 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1911 Number of RIPE addresses announced to Internet: 286732112 Equivalent to 17 /8s, 23 /16s and 47 /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: 56892 Total LACNIC prefixes after maximum aggregation: 16991 LACNIC Deaggregation factor: 3.35 Prefixes being announced from the LACNIC address blocks: 55162 Unique aggregates announced from the LACNIC address blocks: 25163 LACNIC Region origin ASes present in the Internet Routing Table: 4708 LACNIC Prefixes per ASN: 11.72 LACNIC Region origin ASes announcing only one prefix: 1684 LACNIC Region transit ASes present in the Internet Routing Table: 940 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3677 Number of LACNIC addresses announced to Internet: 108977216 Equivalent to 6 /8s, 126 /16s and 220 /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: 9664 Total AfriNIC prefixes after maximum aggregation: 2323 AfriNIC Deaggregation factor: 4.16 Prefixes being announced from the AfriNIC address blocks: 12594 Unique aggregates announced from the AfriNIC address blocks: 4447 AfriNIC Region origin ASes present in the Internet Routing Table: 295 AfriNIC Prefixes per ASN: 42.69 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: 6.4 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 157 Number of AfriNIC addresses announced to Internet: 49557248 Equivalent to 2 /8s, 244 /16s and 47 /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 56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1595 192 50 CMNET-HUNAN-AP China Mobile communication 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 13678 40963 5270 AMAZON-02, US 22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2865 217 1732 USDA-1, US 36352 2554 210 1142 AS-COLOCROSSING, US 367 2501 3072 1176 DNIC-ASBLK-00306-00371, US 6167 1930 4018 516 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1719 22853 1275 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 1176 92 955 AKAMAI-ASN1, NL 3257 1047 2083 810 GTT-BACKBONE GTT, US 34984 926 116 597 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 25019 809 1301 130 SAUDINETSTC-AS, SA 8452 715 1841 16 TE-AS TE-AS, EG 58224 658 427 474 TCI, IR 212238 656 46 580 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 6983 1935 929 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1712 248 1232 Telmex Colombia S.A., CO 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 21 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 29571 1154 101 66 ORANGE-COTE-IVOIRE, CI 24835 937 544 23 RAYA-AS, EG 37069 702 1112 11 MOBINIL, EG 36914 569 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 24863 525 389 22 LINKdotNET-AS, EG 36992 479 1024 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 13678 40963 5270 AMAZON-02, US 9808 11632 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 6983 1935 929 UNINET, MX 22773 3338 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2865 217 1732 USDA-1, US 56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati 36352 2554 210 1142 AS-COLOCROSSING, US 367 2501 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 11632 11517 CHINAMOBILE-CN China Mobile Communications Grou 8151 6983 6054 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 1595 1545 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 /12:162 /13:218 /14:590 /15:1108 /16:7718 /17:3482 /18:4197 /19:7686 /20:12932 /21:15899 /22:27446 /23:29382 /24:166397 /25:65 /26:82 /27:38 /28:18 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3625 6983 UNINET, MX 22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2340 13678 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 2554 AS-COLOCROSSING, US 10620 994 1712 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 2:445 3:849 4:5 5:713 6:150 7:5 8:653 11:171 12:965 13:401 14:135 15:308 16:247 17:3 18:890 20:189 21:4 22:188 23:2671 24:688 27:44 29:19 31:520 32:18 33:1 34:10 35:175 36:2385 37:714 38:2627 39:555 40:84 41:1043 42:21 43:220 44:32 45:4451 46:997 47:110 49:26 50:418 51:390 52:1384 54:318 55:1108 56:11 57:23 58:18 59:35 60:31 61:62 62:543 63:786 64:1937 65:1133 66:1607 67:1096 68:370 69:1278 70:459 71:188 72:710 74:969 75:319 76:249 77:484 78:370 79:238 80:289 81:356 82:730 83:225 84:361 85:479 86:245 87:217 88:302 89:718 90:107 91:934 92:662 93:486 94:987 95:744 96:276 97:53 98:503 99:193 100:40 101:64 102:395 103:1302 104:1708 105:178 106:40 107:1530 108:440 109:438 110:44 111:1973 112:639 113:39 114:63 115:25 116:56 117:1099 118:69 119:82 120:1440 121:50 122:70 123:131 124:65 125:24 126:1 128:528 129:351 130:667 131:1012 132:558 133:212 134:476 135:127 136:675 137:532 138:1030 139:446 140:775 141:372 142:1023 143:808 144:439 145:118 146:684 147:520 148:1028 149:726 150:178 151:815 152:624 153:133 154:1203 155:907 156:1006 157:397 158:565 159:761 160:855 161:681 162:1070 163:442 164:727 165:580 166:816 167:704 168:1574 169:165 170:1785 171:110 172:1331 173:834 174:362 175:85 176:788 177:1080 178:484 179:880 180:41 181:2275 182:46 183:1059 184:458 185:3512 186:2869 187:1651 188:817 189:1900 190:6030 191:552 192:5291 193:1830 194:1254 195:960 196:715 197:1187 198:2752 199:5060 200:4728 201:3786 202:1001 203:725 204:2287 205:1850 206:1575 207:1618 208:1521 209:2023 210:362 211:465 212:996 213:790 214:936 215:35 216:2585 217:450 218:550 219:18 220:36 221:455 222:24 223:1099 End of report