IPv4 R&E Routing Table Report 20:15 GMT Sun 27 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: 280748 Prefixes after maximum aggregation (per Origin AS): 120801 Deaggregation factor: 2.32 Unique aggregates announced (without unneeded subnets): 143528 Number of IPv4 prefixes with a valid ROA: 131104 Number of IPv4 prefixes with an invalid ROA: 200 Number of IPv4 prefixes with no ROA: 149444 Total ASes present in the Internet Routing Table: 20949 Prefixes per ASN: 13.40 Origin-only ASes present in the Internet Routing Table: 18050 Origin ASes announcing only one prefix: 8105 Transit ASes present in the Internet Routing Table: 2899 Transit-only ASes present in the Internet Routing Table: 707 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: 345 Number of instances of unregistered ASNs: 377 Number of 32-bit ASNs allocated by the RIRs: 46959 Number of 32-bit ASNs visible in the Routing Table: 8361 Prefixes from 32-bit ASNs in the Routing Table: 33724 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: 1644667653 Equivalent to 98 /8s, 7 /16s and 163 /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: 89698 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35171 Total APNIC prefixes after maximum aggregation: 7672 APNIC Deaggregation factor: 4.58 Prefixes being announced from the APNIC address blocks: 34158 Unique aggregates announced from the APNIC address blocks: 8064 APNIC Region origin ASes present in the Internet Routing Table: 1238 APNIC Prefixes per ASN: 27.59 APNIC Region origin ASes announcing only one prefix: 495 APNIC Region transit ASes present in the Internet Routing Table: 197 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: 579 Number of APNIC addresses announced to Internet: 173348716 Equivalent to 10 /8s, 85 /16s and 23 /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: 126504 Total ARIN prefixes after maximum aggregation: 66525 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125130 Unique aggregates announced from the ARIN address blocks: 68086 ARIN Region origin ASes present in the Internet Routing Table: 9370 ARIN Prefixes per ASN: 13.35 ARIN Region origin ASes announcing only one prefix: 3897 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: 2212 Number of ARIN addresses announced to Internet: 1028212233 Equivalent to 61 /8s, 73 /16s and 70 /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: 51228 Total RIPE prefixes after maximum aggregation: 27562 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 52557 Unique aggregates announced from the RIPE address blocks: 38432 RIPE Region origin ASes present in the Internet Routing Table: 4710 RIPE Prefixes per ASN: 11.16 RIPE Region origin ASes announcing only one prefix: 1975 RIPE Region transit ASes present in the Internet Routing Table: 706 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: 1938 Number of RIPE addresses announced to Internet: 287560528 Equivalent to 17 /8s, 35 /16s and 211 /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: 56420 Total LACNIC prefixes after maximum aggregation: 16486 LACNIC Deaggregation factor: 3.42 Prefixes being announced from the LACNIC address blocks: 54680 Unique aggregates announced from the LACNIC address blocks: 24507 LACNIC Region origin ASes present in the Internet Routing Table: 4506 LACNIC Prefixes per ASN: 12.13 LACNIC Region origin ASes announcing only one prefix: 1631 LACNIC Region transit ASes present in the Internet Routing Table: 901 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: 3480 Number of LACNIC addresses announced to Internet: 109439040 Equivalent to 6 /8s, 133 /16s and 232 /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: 11080 Total AfriNIC prefixes after maximum aggregation: 2297 AfriNIC Deaggregation factor: 4.82 Prefixes being announced from the AfriNIC address blocks: 14123 Unique aggregates announced from the AfriNIC address blocks: 4343 AfriNIC Region origin ASes present in the Internet Routing Table: 286 AfriNIC Prefixes per ASN: 49.38 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: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 152 Number of AfriNIC addresses announced to Internet: 45986048 Equivalent to 2 /8s, 189 /16s and 177 /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 11868 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati 56041 1642 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1641 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 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 522 883 138 ALIBABA-CN-NET Alibaba US Technology Co., 132525 468 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 13675 40973 5274 AMAZON-02, US 22773 3338 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2872 218 1726 USDA-1, US 36352 2557 209 1144 AS-COLOCROSSING, US 367 2482 3042 1163 DNIC-ASBLK-00306-00371, US 6167 1937 4026 519 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1653 4889 266 CENTURYLINK-US-LEGACY-QWEST, US 7018 1650 22846 1242 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 1167 91 950 AKAMAI-ASN1, NL 3257 1051 2083 815 GTT-BACKBONE GTT, US 34984 927 116 598 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 8452 829 1841 16 TE-AS TE-AS, EG 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 657 46 581 CDNEXT, GB 51167 564 113 248 CONTABO, DE 8376 563 52 24 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 7406 1992 894 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 1188 371 22 Telefonica del Peru S.A.A., PE 26615 1017 2487 55 TIM SA, BR 18881 885 1127 31 TELEFONICA BRASIL S.A, BR 27651 650 92 46 ENTEL CHILE S.A., CL 28006 643 76 296 CORPORACION NACIONAL DE TELECOMUNICACIONE 14117 621 116 15 Telefonica del Sur 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 1412 572 23 RAYA-AS, EG 29571 1157 101 66 ORANGE-COTE-IVOIRE, CI 24863 1047 388 19 LINKdotNET-AS, EG 37069 957 1112 11 MOBINIL, EG 36914 575 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36935 557 518 29 Vodafone-, EG 36903 456 204 330 MT-MPLS, MA 36992 386 968 201 ETISALAT-MISR, EG 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 13675 40973 5274 AMAZON-02, US 9808 11868 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7406 1992 894 UNINET, MX 22773 3338 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2872 218 1726 USDA-1, US 56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati 36352 2557 209 1144 AS-COLOCROSSING, US 367 2482 3042 1163 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 11868 11753 CHINAMOBILE-CN China Mobile Communications Grou 8151 7406 6512 UNINET, MX 22773 3338 3175 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2755 2566 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 1641 1591 CMNET-HUNAN-AP China Mobile communications corp 56041 1642 1564 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1937 1418 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 /14:592 /15:1117 /16:7764 /17:3489 /18:4248 /19:7796 /20:13333 /21:15857 /22:28809 /23:29341 /24:167686 /25:65 /26:81 /27:40 /28:18 /29:14 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3988 7406 UNINET, MX 22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2347 13675 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1025 1350 BRSPD-PUBLIC, US 36352 1016 2557 AS-COLOCROSSING, US 10620 995 1690 Telmex Colombia S.A., CO 209 962 1653 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 2:444 3:853 4:5 5:816 6:145 7:5 8:656 11:171 12:967 13:406 14:135 15:309 16:247 17:3 18:890 20:190 21:4 22:188 23:2679 24:682 27:37 29:19 31:541 32:18 33:1 34:10 35:175 36:2637 37:807 38:2650 39:585 40:84 41:1084 42:21 43:223 44:33 45:4250 46:1009 47:110 49:26 50:483 51:387 52:1382 54:319 55:1110 56:11 57:22 58:18 59:35 60:29 61:61 62:520 63:780 64:1938 65:1127 66:1621 67:1100 68:372 69:1266 70:455 71:190 72:698 74:970 75:317 76:241 77:481 78:373 79:246 80:315 81:398 82:738 83:236 84:341 85:488 86:244 87:220 88:305 89:668 90:107 91:1010 92:688 93:483 94:1016 95:694 96:274 97:53 98:498 99:189 100:40 101:62 102:378 103:1295 104:1705 105:184 106:40 107:1533 108:517 109:442 110:46 111:2004 112:689 113:38 114:61 115:23 116:56 117:1139 118:78 119:82 120:1457 121:51 122:70 123:130 124:64 125:25 126:1 128:524 129:398 130:673 131:1023 132:557 133:212 134:489 135:128 136:683 137:578 138:1035 139:444 140:762 141:367 142:1051 143:828 144:439 145:122 146:685 147:508 148:1015 149:738 150:212 151:807 152:610 153:131 154:1178 155:907 156:951 157:409 158:575 159:764 160:850 161:690 162:1058 163:440 164:727 165:579 166:815 167:710 168:1543 169:162 170:1767 171:105 172:1339 173:840 174:360 175:83 176:804 177:1126 178:615 179:865 180:45 181:2262 182:47 183:1091 184:458 185:3517 186:2886 187:1661 188:863 189:1968 190:6030 191:553 192:5301 193:1883 194:1226 195:973 196:720 197:1179 198:2771 199:5090 200:4610 201:3815 202:1080 203:714 204:2289 205:1833 206:1592 207:1628 208:1524 209:2000 210:359 211:467 212:1038 213:794 214:936 215:37 216:2599 217:460 218:559 219:18 220:32 221:461 222:24 223:1134 End of report