IPv4 R&E Routing Table Report 20:15 GMT Sat 21 Mar, 2026 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: 288984 Prefixes after maximum aggregation (per Origin AS): 117275 Deaggregation factor: 2.46 Unique aggregates announced (without unneeded subnets): 146682 Number of IPv4 prefixes with a valid ROA: 147742 Number of IPv4 prefixes with an invalid ROA: 214 Number of IPv4 prefixes with no ROA: 141028 Total ASes present in the Internet Routing Table: 20378 Prefixes per ASN: 14.18 Origin-only ASes present in the Internet Routing Table: 17481 Origin ASes announcing only one prefix: 7846 Transit ASes present in the Internet Routing Table: 2897 Transit-only ASes present in the Internet Routing Table: 727 Paths with bogon ASNs present in the IPv4 Routing Table: 12 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 35 Max AS path prepend of ASN (273113) 30 Prefixes from unregistered ASNs in the Routing Table: 237 Number of instances of unregistered ASNs: 266 Number of 32-bit ASNs allocated by the RIRs: 49047 Number of 32-bit ASNs visible in the Routing Table: 8370 Prefixes from 32-bit ASNs in the Routing Table: 34925 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 92 Number of addresses announced to Internet: 1621545861 Equivalent to 96 /8s, 166 /16s and 211 /24s Percentage of available address space announced: 43.8 Percentage of allocated address space announced: 43.8 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: 93010 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42481 Total APNIC prefixes after maximum aggregation: 8007 APNIC Deaggregation factor: 5.31 Prefixes being announced from the APNIC address blocks: 39105 Unique aggregates announced from the APNIC address blocks: 7766 APNIC Region origin ASes present in the Internet Routing Table: 1255 APNIC Prefixes per ASN: 31.16 APNIC Region origin ASes announcing only one prefix: 515 APNIC Region transit ASes present in the Internet Routing Table: 217 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 614 Number of APNIC addresses announced to Internet: 168865644 Equivalent to 10 /8s, 16 /16s and 175 /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: 128069 Total ARIN prefixes after maximum aggregation: 65082 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 125104 Unique aggregates announced from the ARIN address blocks: 70693 ARIN Region origin ASes present in the Internet Routing Table: 8955 ARIN Prefixes per ASN: 13.97 ARIN Region origin ASes announcing only one prefix: 3690 ARIN Region transit ASes present in the Internet Routing Table: 845 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2162 Number of ARIN addresses announced to Internet: 1017830953 Equivalent to 60 /8s, 170 /16s and 222 /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, 393216-404380 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: 50501 Total RIPE prefixes after maximum aggregation: 25183 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 53588 Unique aggregates announced from the RIPE address blocks: 37143 RIPE Region origin ASes present in the Internet Routing Table: 4461 RIPE Prefixes per ASN: 12.01 RIPE Region origin ASes announcing only one prefix: 1912 RIPE Region transit ASes present in the Internet Routing Table: 708 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1913 Number of RIPE addresses announced to Internet: 281482832 Equivalent to 16 /8s, 199 /16s and 22 /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: 58178 Total LACNIC prefixes after maximum aggregation: 16698 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 55856 Unique aggregates announced from the LACNIC address blocks: 24549 LACNIC Region origin ASes present in the Internet Routing Table: 4574 LACNIC Prefixes per ASN: 12.21 LACNIC Region origin ASes announcing only one prefix: 1617 LACNIC Region transit ASes present in the Internet Routing Table: 923 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3525 Number of LACNIC addresses announced to Internet: 107718048 Equivalent to 6 /8s, 107 /16s and 165 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 9518 Total AfriNIC prefixes after maximum aggregation: 2109 AfriNIC Deaggregation factor: 4.51 Prefixes being announced from the AfriNIC address blocks: 15239 Unique aggregates announced from the AfriNIC address blocks: 6448 AfriNIC Region origin ASes present in the Internet Routing Table: 290 AfriNIC Prefixes per ASN: 52.55 AfriNIC Region origin ASes announcing only one prefix: 112 AfriNIC Region transit ASes present in the Internet Routing Table: 78 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 156 Number of AfriNIC addresses announced to Internet: 45507328 Equivalent to 2 /8s, 182 /16s and 99 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13572 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3414 887 189 CMNET-JIANGSU-AP China Mobile communicati 17561 2369 149 476 LCS-AS-AP LARUS Limited, HK 56041 1805 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1712 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1063 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 926 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 56045 910 481 55 CMNET-JIANGXI-AP China Mobile communicati 24445 781 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 708 1210 160 ALIBABA-CN-NET Alibaba US Technology Co., 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 14513 41222 5583 AMAZON-02 - Amazon.com, Inc., US 22773 4764 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2520 207 990 AS-COLOCROSSING - HostPapa, US 6167 2047 4263 582 CELLCO-PART - Verizon Business, US 11776 1896 257 221 ATLANTICBB-JOHNSTOWN - Breezeline, US 209 1629 4850 259 CENTURYLINK-US-LEGACY-QWEST - CenturyLink 367 1622 1334 745 DNIC-ASBLK-00306-00371 - United States De 19901 1474 739 683 BRIGHTSPEED - Brightspeed, US 20057 1456 1001 113 ATT-MOBILITY-LLC-AS20057 - AT&T Enterpris 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 4901 302 73 ALJAWWALSTC-AS, SA 25019 1284 1335 141 SAUDINETSTC-AS, SA 20940 1255 97 1017 AKAMAI-ASN1, NL 34984 982 145 730 TELLCOM-AS, TR 8452 923 1841 19 TE-AS TE-AS, EG 3215 903 4832 303 France Telecom - Orange, FR 8376 667 54 30 Communications, JO 212238 593 42 527 CDNEXT, GB 51167 565 113 248 CONTABO, DE 5511 542 99 461 OPENTRANSIT, FR 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 7421 1942 800 UNINET, MX 11830 1957 369 65 Instituto Costarricense de Electricidad y 10620 1513 211 1128 Telmex Colombia S.A., CO 11664 1449 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1341 770 214 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1244 371 22 INTEGRATEL PERU S.A.A., PE 26615 1053 2475 94 TIM SA, BR 18881 967 1127 31 TELEFONICA BRASIL S.A, BR 27651 848 140 44 ENTEL CHILE S.A., CL 52468 694 44 213 UFINET PANAMA S.A., PA 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 1531 524 27 RAYA-AS, EG 24863 841 389 16 LINKdotNET-AS, EG 37069 751 1100 11 MOBINIL, EG 36914 544 82 3 KENET-AS, KE 36935 540 515 11 Vodafone-, EG 36903 503 233 345 MT-MPLS, MA 29571 432 78 20 ORANGE-COTE-IVOIRE, CI 2018 375 318 69 TENET-1, ZA 36992 367 844 247 ETISALAT-MISR, EG 37693 347 599 43 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 14513 41222 5583 AMAZON-02 - Amazon.com, Inc., US 9808 13572 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7421 1942 800 UNINET, MX 39891 4901 302 73 ALJAWWALSTC-AS, SA 22773 4764 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 56046 3414 887 189 CMNET-JIANGSU-AP China Mobile communicati 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2520 207 990 AS-COLOCROSSING - HostPapa, US 17561 2369 149 476 LCS-AS-AP LARUS Limited, HK 6167 2047 4263 582 CELLCO-PART - Verizon Business, US 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 13572 13452 CHINAMOBILE-CN China Mobile Communications Grou 8151 7421 6621 UNINET, MX 39891 4901 4828 ALJAWWALSTC-AS, SA 22773 4764 4398 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 56046 3414 3225 CMNET-JIANGSU-AP China Mobile communications co 17561 2369 1893 LCS-AS-AP LARUS Limited, HK 11830 1957 1892 Instituto Costarricense de Electricidad y Telec 56041 1805 1726 CMNET-ZHEJIANG-AP China Mobile communications c 11776 1896 1675 ATLANTICBB-JOHNSTOWN - Breezeline, US 56047 1712 1662 CMNET-HUNAN-AP China Mobile communications corp 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 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 397665 UNALLOCATED 12.24.28.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4 - AT&T En 33684 UNALLOCATED 12.37.144.0/24 7018 ATT-INTERNET4 - AT&T En 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4 - AT&T En 21861 UNALLOCATED 12.106.212.0/24 7018 ATT-INTERNET4 - AT&T En 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 - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US 23.178.24.0/24 Origin: 53850 GORILLASERVERS - GorillaServers, Inc., U 23.178.24.0/24 Transit: 3257 GTT-BACKBONE GTT, 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 /11:55 /12:159 /13:217 /14:582 /15:1073 /16:7488 /17:3501 /18:4175 /19:7692 /20:13309 /21:16045 /22:28760 /23:30033 /24:175550 /25:66 /26:82 /27:51 /28:19 /29:7 /30:9 /31:0 /32:55 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4092 7421 UNINET, MX 39891 3651 4901 ALJAWWALSTC-AS, SA 22773 3035 4764 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2605 14513 AMAZON-02 - Amazon.com, Inc., US 11830 1666 1957 Instituto Costarricense de Electricidad y Telecom., CR 11664 1138 1449 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1076 2520 AS-COLOCROSSING - HostPapa, US 19901 1027 1474 BRIGHTSPEED - Brightspeed, US 209 947 1629 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US 10620 925 1513 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:73 2:514 3:1003 4:1 5:1147 6:184 7:5 8:620 9:7 11:172 12:857 13:601 14:126 15:400 16:143 17:3 18:912 20:330 21:4 22:188 23:2910 24:842 27:18 28:1 29:19 31:453 32:13 34:9 35:185 36:3337 37:621 38:2505 39:859 40:47 41:1090 42:21 43:214 44:25 45:4525 46:908 47:174 48:39 49:21 50:500 51:463 52:1099 54:272 55:1115 56:11 57:27 58:16 59:34 60:14 61:58 62:624 63:693 64:2205 65:996 66:2399 67:1119 68:487 69:1202 70:430 71:139 72:694 74:1001 75:266 76:235 77:490 78:547 79:247 80:316 81:419 82:824 83:205 84:352 85:597 86:241 87:189 88:280 89:556 90:102 91:901 92:684 93:881 94:933 95:1294 96:274 97:43 98:383 99:284 100:22 101:29 102:417 103:1238 104:1605 105:154 107:1784 108:518 109:356 110:51 111:2791 112:1299 113:33 114:42 115:7 116:57 117:1633 118:65 119:118 120:2026 121:35 122:43 123:106 124:62 125:23 126:1 128:574 129:369 130:726 131:1277 132:548 133:217 134:503 135:134 136:700 137:602 138:1039 139:462 140:747 141:418 142:1522 143:847 144:499 145:178 146:668 147:499 148:1002 149:737 150:239 151:901 152:814 153:297 154:2325 155:993 156:2101 157:461 158:664 159:833 160:667 161:743 162:977 163:425 164:731 165:639 166:562 167:705 168:1469 169:207 170:1855 171:104 172:1382 173:807 174:269 175:92 176:626 177:1112 178:615 179:885 180:35 181:2589 182:31 183:1717 184:446 185:3234 186:3565 187:1814 188:1037 189:1977 190:6217 191:584 192:5165 193:1699 194:1087 195:902 196:647 197:688 198:2682 199:2486 200:4453 201:3622 202:1029 203:737 204:2198 205:1809 206:1508 207:1700 208:1619 209:2041 210:314 211:512 212:1004 213:867 214:963 215:35 216:2478 217:541 218:663 219:18 220:28 221:537 222:29 223:1693 End of report