IPv4 R&E Routing Table Report 20:15 GMT Sun 03 Aug, 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: 279823 Prefixes after maximum aggregation (per Origin AS): 120188 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 142966 Number of IPv4 prefixes with a valid ROA: 130225 Number of IPv4 prefixes with an invalid ROA: 218 Number of IPv4 prefixes with no ROA: 149380 Total ASes present in the Internet Routing Table: 20651 Prefixes per ASN: 13.55 Origin-only ASes present in the Internet Routing Table: 17779 Origin ASes announcing only one prefix: 7947 Transit ASes present in the Internet Routing Table: 2872 Transit-only ASes present in the Internet Routing Table: 715 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: 335 Number of instances of unregistered ASNs: 367 Number of 32-bit ASNs allocated by the RIRs: 47047 Number of 32-bit ASNs visible in the Routing Table: 8169 Prefixes from 32-bit ASNs in the Routing Table: 33267 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: 92 Number of addresses announced to Internet: 1644448005 Equivalent to 98 /8s, 4 /16s and 73 /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: 89198 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35407 Total APNIC prefixes after maximum aggregation: 7526 APNIC Deaggregation factor: 4.70 Prefixes being announced from the APNIC address blocks: 34411 Unique aggregates announced from the APNIC address blocks: 7894 APNIC Region origin ASes present in the Internet Routing Table: 1197 APNIC Prefixes per ASN: 28.75 APNIC Region origin ASes announcing only one prefix: 472 APNIC Region transit ASes present in the Internet Routing Table: 186 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 554 Number of APNIC addresses announced to Internet: 173875564 Equivalent to 10 /8s, 93 /16s and 33 /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: 126263 Total ARIN prefixes after maximum aggregation: 66465 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124677 Unique aggregates announced from the ARIN address blocks: 68164 ARIN Region origin ASes present in the Internet Routing Table: 9290 ARIN Prefixes per ASN: 13.42 ARIN Region origin ASes announcing only one prefix: 3859 ARIN Region transit ASes present in the Internet Routing Table: 887 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: 2174 Number of ARIN addresses announced to Internet: 1027961097 Equivalent to 61 /8s, 69 /16s and 113 /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: 50341 Total RIPE prefixes after maximum aggregation: 27171 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 51834 Unique aggregates announced from the RIPE address blocks: 37881 RIPE Region origin ASes present in the Internet Routing Table: 4654 RIPE Prefixes per ASN: 11.14 RIPE Region origin ASes announcing only one prefix: 1954 RIPE Region transit ASes present in the Internet Routing Table: 699 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: 1921 Number of RIPE addresses announced to Internet: 287160656 Equivalent to 17 /8s, 29 /16s and 185 /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: 56351 Total LACNIC prefixes after maximum aggregation: 16447 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 54626 Unique aggregates announced from the LACNIC address blocks: 24526 LACNIC Region origin ASes present in the Internet Routing Table: 4397 LACNIC Prefixes per ASN: 12.42 LACNIC Region origin ASes announcing only one prefix: 1570 LACNIC Region transit ASes present in the Internet Routing Table: 890 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: 3384 Number of LACNIC addresses announced to Internet: 109046848 Equivalent to 6 /8s, 127 /16s and 236 /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: 11126 Total AfriNIC prefixes after maximum aggregation: 2328 AfriNIC Deaggregation factor: 4.78 Prefixes being announced from the AfriNIC address blocks: 14183 Unique aggregates announced from the AfriNIC address blocks: 4411 AfriNIC Region origin ASes present in the Internet Routing Table: 271 AfriNIC Prefixes per ASN: 52.34 AfriNIC Region origin ASes announcing only one prefix: 92 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 136 Number of AfriNIC addresses announced to Internet: 46294016 Equivalent to 2 /8s, 194 /16s and 100 /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 12191 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2827 811 189 CMNET-JIANGSU-AP China Mobile communicati 56047 1661 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1643 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 866 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 777 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 612 2169 462 SINET-AS Research Organization of Informa 132525 550 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 537 893 139 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 13702 41056 5286 AMAZON-02, US 22773 3337 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2888 219 1735 USDA-1, US 36352 2559 210 1141 AS-COLOCROSSING, US 367 2438 2963 1137 DNIC-ASBLK-00306-00371, US 6167 1942 4030 519 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1648 4888 263 CENTURYLINK-US-LEGACY-QWEST, US 7018 1600 22828 1199 ATT-INTERNET4, 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 1192 93 970 AKAMAI-ASN1, NL 3257 1051 2083 815 GTT-BACKBONE GTT, US 34984 941 118 607 TELLCOM-AS, TR 3215 888 4818 292 France Telecom - Orange, FR 8452 829 1841 16 TE-AS TE-AS, EG 25019 802 1301 130 SAUDINETSTC-AS, SA 212238 657 46 581 CDNEXT, GB 8376 582 53 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 7398 2002 883 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1690 242 1218 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1187 371 22 Telefonica del Peru S.A.A., PE 26615 1015 2487 55 TIM SA, BR 18881 885 1127 31 TELEFONICA BRASIL S.A, BR 11664 782 278 29 Techtel LMDS Comunicaciones Interactivas 11172 728 124 69 Alestra, S. de R.L. de C.V., MX 27651 651 92 46 ENTEL CHILE S.A., CL 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 1447 572 23 RAYA-AS, EG 29571 1155 99 104 ORANGE-COTE-IVOIRE, CI 24863 973 388 20 LINKdotNET-AS, EG 37069 913 1112 11 MOBINIL, EG 36935 587 518 29 Vodafone-, EG 36914 572 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 509 1092 217 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 2018 375 318 69 TENET-1, ZA 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 13702 41056 5286 AMAZON-02, US 9808 12191 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7398 2002 883 UNINET, MX 22773 3337 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2888 219 1735 USDA-1, US 56046 2827 811 189 CMNET-JIANGSU-AP China Mobile communicati 36352 2559 210 1141 AS-COLOCROSSING, US 367 2438 2963 1137 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 12191 12076 CHINAMOBILE-CN China Mobile Communications Grou 8151 7398 6515 UNINET, MX 22773 3337 3174 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2827 2638 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 1661 1611 CMNET-HUNAN-AP China Mobile communications corp 56041 1643 1565 CMNET-ZHEJIANG-AP China Mobile communications c 24835 1447 1424 RAYA-AS, EG 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 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 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 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.106.212.0/24 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 /15:1120 /16:7768 /17:3484 /18:4264 /19:7801 /20:13273 /21:15988 /22:28648 /23:29243 /24:166908 /25:67 /26:85 /27:52 /28:18 /29:13 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3987 7398 UNINET, MX 22773 2492 3337 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2363 13702 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1028 1356 BRSPD-PUBLIC, US 36352 1017 2559 AS-COLOCROSSING, US 10620 996 1690 Telmex Colombia S.A., CO 209 962 1648 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) ---------------------------------------------- 1:28 2:448 3:859 4:5 5:797 6:145 7:5 8:656 11:171 12:946 13:400 14:112 15:310 16:247 17:3 18:892 20:191 21:4 22:188 23:2644 24:680 27:28 29:19 31:475 32:18 33:1 34:10 35:175 36:2838 37:758 38:2604 39:592 40:83 41:1081 42:21 43:223 44:27 45:4210 46:995 47:111 49:25 50:475 51:385 52:1383 54:319 55:1103 56:11 57:23 58:17 59:32 60:31 61:61 62:512 63:789 64:1922 65:1115 66:1615 67:1085 68:369 69:1270 70:454 71:189 72:689 74:963 75:319 76:261 77:467 78:358 79:245 80:310 81:373 82:756 83:238 84:334 85:481 86:247 87:202 88:302 89:664 90:108 91:989 92:697 93:469 94:987 95:636 96:259 97:53 98:501 99:191 100:40 101:30 102:383 103:1282 104:1687 105:186 106:40 107:1553 108:532 109:429 110:48 111:2104 112:751 113:39 114:54 115:31 116:52 117:1162 118:84 119:84 120:1474 121:50 122:60 123:138 124:65 125:25 126:1 128:537 129:401 130:676 131:1035 132:576 133:212 134:469 135:127 136:675 137:524 138:1031 139:451 140:732 141:377 142:1029 143:828 144:435 145:155 146:658 147:510 148:1017 149:734 150:208 151:816 152:607 153:131 154:1211 155:900 156:952 157:412 158:573 159:724 160:851 161:691 162:1052 163:443 164:732 165:633 166:814 167:691 168:1595 169:163 170:1793 171:103 172:1331 173:843 174:359 175:87 176:818 177:1075 178:608 179:838 180:42 181:2274 182:30 183:1113 184:456 185:3399 186:3001 187:1645 188:832 189:2000 190:5979 191:538 192:5274 193:1826 194:1192 195:935 196:717 197:1179 198:2761 199:5066 200:4634 201:3816 202:991 203:700 204:2233 205:1799 206:1583 207:1610 208:1518 209:1976 210:356 211:469 212:927 213:788 214:936 215:37 216:2626 217:467 218:564 219:18 220:32 221:469 222:24 223:1165 End of report