IPv4 R&E Routing Table Report 20:15 GMT Thu 29 Jan, 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: 286538 Prefixes after maximum aggregation (per Origin AS): 117229 Deaggregation factor: 2.44 Unique aggregates announced (without unneeded subnets): 147417 Number of IPv4 prefixes with a valid ROA: 144505 Number of IPv4 prefixes with an invalid ROA: 211 Number of IPv4 prefixes with no ROA: 141822 Total ASes present in the Internet Routing Table: 20313 Prefixes per ASN: 14.11 Origin-only ASes present in the Internet Routing Table: 17519 Origin ASes announcing only one prefix: 7902 Transit ASes present in the Internet Routing Table: 2794 Transit-only ASes present in the Internet Routing Table: 709 Paths with bogon ASNs present in the IPv4 Routing Table: 7 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 33 Max AS path prepend of ASN ( 37133) 26 Prefixes from unregistered ASNs in the Routing Table: 238 Number of instances of unregistered ASNs: 267 Number of 32-bit ASNs allocated by the RIRs: 48520 Number of 32-bit ASNs visible in the Routing Table: 8210 Prefixes from 32-bit ASNs in the Routing Table: 33892 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 94 Number of addresses announced to Internet: 1546021829 Equivalent to 92 /8s, 38 /16s and 107 /24s Percentage of available address space announced: 41.8 Percentage of allocated address space announced: 41.8 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: 92282 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 43494 Total APNIC prefixes after maximum aggregation: 8949 APNIC Deaggregation factor: 4.86 Prefixes being announced from the APNIC address blocks: 40100 Unique aggregates announced from the APNIC address blocks: 9062 APNIC Region origin ASes present in the Internet Routing Table: 1320 APNIC Prefixes per ASN: 30.38 APNIC Region origin ASes announcing only one prefix: 560 APNIC Region transit ASes present in the Internet Routing Table: 225 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 643 Number of APNIC addresses announced to Internet: 169636460 Equivalent to 10 /8s, 28 /16s and 114 /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: 125638 Total ARIN prefixes after maximum aggregation: 63917 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 123626 Unique aggregates announced from the ARIN address blocks: 70261 ARIN Region origin ASes present in the Internet Routing Table: 9099 ARIN Prefixes per ASN: 13.59 ARIN Region origin ASes announcing only one prefix: 3782 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: 2180 Number of ARIN addresses announced to Internet: 966094889 Equivalent to 57 /8s, 149 /16s and 112 /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: 51219 Total RIPE prefixes after maximum aggregation: 25890 RIPE Deaggregation factor: 1.98 Prefixes being announced from the RIPE address blocks: 53572 Unique aggregates announced from the RIPE address blocks: 36944 RIPE Region origin ASes present in the Internet Routing Table: 4430 RIPE Prefixes per ASN: 12.09 RIPE Region origin ASes announcing only one prefix: 1888 RIPE Region transit ASes present in the Internet Routing Table: 675 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 24 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1878 Number of RIPE addresses announced to Internet: 258666960 Equivalent to 15 /8s, 106 /16s and 241 /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: 55514 Total LACNIC prefixes after maximum aggregation: 15952 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 53388 Unique aggregates announced from the LACNIC address blocks: 23682 LACNIC Region origin ASes present in the Internet Routing Table: 4343 LACNIC Prefixes per ASN: 12.29 LACNIC Region origin ASes announcing only one prefix: 1557 LACNIC Region transit ASes present in the Internet Routing Table: 848 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: 3348 Number of LACNIC addresses announced to Internet: 105728352 Equivalent to 6 /8s, 77 /16s and 73 /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: 10435 Total AfriNIC prefixes after maximum aggregation: 2331 AfriNIC Deaggregation factor: 4.48 Prefixes being announced from the AfriNIC address blocks: 15758 Unique aggregates announced from the AfriNIC address blocks: 7384 AfriNIC Region origin ASes present in the Internet Routing Table: 302 AfriNIC Prefixes per ASN: 52.18 AfriNIC Region origin ASes announcing only one prefix: 115 AfriNIC Region transit ASes present in the Internet Routing Table: 83 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 161 Number of AfriNIC addresses announced to Internet: 45753856 Equivalent to 2 /8s, 186 /16s and 38 /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 13435 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3359 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2192 138 498 LCS-AS-AP LARUS Limited, HK 56041 1766 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1716 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1057 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 909 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 902 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 772 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 688 1168 151 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 14008 38805 5444 AMAZON-02 - Amazon.com, Inc., US 22773 4777 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 749 3141 54728 2392 DNIC-AS-00749 - United States Department 36352 2581 212 1012 AS-COLOCROSSING - HostPapa, US 6167 1974 4173 531 CELLCO-PART - Verizon Business, US 11776 1904 259 213 ATLANTICBB-JOHNSTOWN - Breezeline, US 367 1710 1497 786 DNIC-ASBLK-00306-00371 - United States De 209 1637 4882 262 CENTURYLINK-US-LEGACY-QWEST - CenturyLink 19901 1485 732 691 BRIGHTSPEED - Brightspeed, US 20057 1445 1017 112 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 71 ALJAWWALSTC-AS, SA 20940 1243 95 1012 AKAMAI-ASN1, NL 25019 1151 1335 138 SAUDINETSTC-AS, SA 34984 974 148 731 TELLCOM-AS, TR 3215 900 4820 300 France Telecom - Orange, FR 8452 882 1841 17 TE-AS TE-AS, EG 212238 701 49 616 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 551 53 25 Jordan Data Communications, JO 5511 530 98 450 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 7294 1938 784 UNINET, MX 11830 1987 369 65 Instituto Costarricense de Electricidad y 10620 1519 211 1131 Telmex Colombia S.A., CO 11664 1408 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1257 371 22 INTEGRATEL PERU S.A.A., PE 26615 1014 2486 57 TIM SA, BR 18881 914 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 12252 682 164 24 America Movil Peru S.A.C., PE 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 1451 463 90 RAYA-AS, EG 37069 1079 1092 14 MOBINIL, EG 24863 823 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 568 82 3 KENET-AS, KE 36935 510 515 10 Vodafone-, EG 36903 503 233 345 MT-MPLS, MA 29571 422 78 20 ORANGE-COTE-IVOIRE, CI 36992 385 870 245 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 14008 38805 5444 AMAZON-02 - Amazon.com, Inc., US 9808 13435 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7294 1938 784 UNINET, MX 39891 4901 302 71 ALJAWWALSTC-AS, SA 22773 4777 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 56046 3359 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3141 54728 2392 DNIC-AS-00749 - United States Department 36352 2581 212 1012 AS-COLOCROSSING - HostPapa, US 17561 2192 138 498 LCS-AS-AP LARUS Limited, HK 11830 1987 369 65 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 13435 13315 CHINAMOBILE-CN China Mobile Communications Grou 8151 7294 6510 UNINET, MX 39891 4901 4830 ALJAWWALSTC-AS, SA 22773 4777 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 56046 3359 3164 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1922 Instituto Costarricense de Electricidad y Telec 17561 2192 1694 LCS-AS-AP LARUS Limited, HK 11776 1904 1691 ATLANTICBB-JOHNSTOWN - Breezeline, US 56041 1766 1687 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1716 1666 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 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 26295 UNALLOCATED 12.110.210.0/23 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 23.155.185.0/24 Origin: 401541 OSIE - Osie, US 23.155.185.0/24 Transit: 397423 TIER-NET - Tier.Net Technologies LLC, US 23.157.217.0/24 Origin: 401541 OSIE - Osie, US 23.157.217.0/24 Transit: 397423 TIER-NET - Tier.Net Technologies LLC, 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 /10:29 /11:46 /12:145 /13:200 /14:549 /15:1033 /16:7294 /17:3458 /18:4146 /19:7635 /20:13234 /21:16115 /22:28195 /23:29539 /24:174661 /25:61 /26:83 /27:50 /28:18 /29:7 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4007 7294 UNINET, MX 39891 3651 4901 ALJAWWALSTC-AS, SA 22773 3050 4777 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2462 14008 AMAZON-02 - Amazon.com, Inc., US 11830 1692 1987 Instituto Costarricense de Electricidad y Telecom., CR 36352 1094 2581 AS-COLOCROSSING - HostPapa, US 11664 1090 1408 Techtel LMDS Comunicaciones Interactivas S.A., AR 19901 1051 1485 BRIGHTSPEED - Brightspeed, US 209 951 1637 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US 10620 931 1519 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) ---------------------------------------------- 1:72 2:461 3:975 4:5 5:1149 6:172 7:5 8:634 9:6 11:172 12:877 13:558 14:178 15:363 16:154 17:3 18:911 20:173 21:4 22:188 23:2875 24:663 27:47 29:19 31:510 32:13 34:7 35:182 36:3333 37:631 38:2323 39:841 40:250 41:1125 42:22 43:204 44:29 45:4354 46:931 47:166 48:20 49:21 50:480 51:522 52:1076 54:231 55:1119 56:11 57:33 58:44 59:42 60:74 61:58 62:586 63:721 64:2168 65:977 66:2398 67:1088 68:491 69:1200 70:433 71:155 72:708 74:974 75:296 76:238 77:391 78:570 79:226 80:342 81:424 82:806 83:208 84:341 85:641 86:236 87:200 88:282 89:700 90:104 91:884 92:681 93:890 94:983 95:1315 96:283 97:45 98:389 99:270 100:22 101:22 102:510 103:1272 104:1622 105:131 106:3 107:1708 108:517 109:355 110:100 111:2770 112:1303 113:30 114:34 115:53 116:57 117:1557 118:64 119:88 120:2011 121:36 122:78 123:125 124:68 125:49 128:623 129:367 130:712 131:1172 132:545 133:218 134:504 135:129 136:736 137:603 138:978 139:451 140:754 141:515 142:1455 143:849 144:480 145:191 146:688 147:463 148:1009 149:734 150:228 151:889 152:722 153:271 154:2363 155:1005 156:2038 157:478 158:646 159:832 160:630 161:709 162:980 163:419 164:726 165:608 166:558 167:705 168:1455 169:208 170:1780 171:102 172:1575 173:778 174:271 175:93 176:667 177:899 178:641 179:867 180:51 181:2532 182:23 183:1693 184:436 185:3290 186:3397 187:1696 188:1058 189:1958 190:5906 191:521 192:5072 193:1683 194:1111 195:901 196:684 197:1101 198:2650 199:2415 200:4450 201:3595 202:1102 203:801 204:2180 205:1802 206:1459 207:1710 208:1671 209:1965 210:443 211:518 212:1043 213:871 214:991 215:43 216:2426 217:541 218:653 219:29 220:82 221:536 222:37 223:1671 End of report