IPv4 R&E Routing Table Report 23:05 GMT Tue 12 Apr, 2022 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 879715 Prefixes after maximum aggregation (per Origin AS): 334311 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 429220 Number of IPv4 prefixes with a valid ROA: 314147 Number of IPv4 prefixes with an invalid ROA: 1162 Number of IPv4 prefixes with no ROA: 564406 Total ASes present in the Internet Routing Table: 72739 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62436 Origin ASes announcing only one prefix: 25670 Transit ASes present in the Internet Routing Table: 10303 Transit-only ASes present in the Internet Routing Table: 373 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 65 Max AS path prepend of ASN (267602) 58 Prefixes from unregistered ASNs in the Routing Table: 794 Number of instances of unregistered ASNs: 799 Number of 32-bit ASNs allocated by the RIRs: 39071 Number of 32-bit ASNs visible in the Routing Table: 32386 Prefixes from 32-bit ASNs in the Routing Table: 152347 Number of bogon 32-bit ASNs visible in the Routing Table: 20 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 464 Number of addresses announced to Internet: 3065945088 Equivalent to 182 /8s, 190 /16s and 156 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 295668 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228530 Total APNIC prefixes after maximum aggregation: 65761 APNIC Deaggregation factor: 3.48 Prefixes being announced from the APNIC address blocks: 223412 Unique aggregates announced from the APNIC address blocks: 94307 APNIC Region origin ASes present in the Internet Routing Table: 12457 APNIC Prefixes per ASN: 17.93 APNIC Region origin ASes announcing only one prefix: 3546 APNIC Region transit ASes present in the Internet Routing Table: 1700 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7724 Number of APNIC addresses announced to Internet: 773224448 Equivalent to 46 /8s, 22 /16s and 120 /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, 131072-151865 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: 259546 Total ARIN prefixes after maximum aggregation: 119310 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 259653 Unique aggregates announced from the ARIN address blocks: 124225 ARIN Region origin ASes present in the Internet Routing Table: 18918 ARIN Prefixes per ASN: 13.73 ARIN Region origin ASes announcing only one prefix: 6883 ARIN Region transit ASes present in the Internet Routing Table: 1886 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4414 Number of ARIN addresses announced to Internet: 1294949376 Equivalent to 77 /8s, 47 /16s and 92 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 248757 Total RIPE prefixes after maximum aggregation: 115728 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246136 Unique aggregates announced from the RIPE address blocks: 150275 RIPE Region origin ASes present in the Internet Routing Table: 28084 RIPE Prefixes per ASN: 8.76 RIPE Region origin ASes announcing only one prefix: 12033 RIPE Region transit ASes present in the Internet Routing Table: 3998 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10664 Number of RIPE addresses announced to Internet: 713906944 Equivalent to 42 /8s, 141 /16s and 91 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 114361 Total LACNIC prefixes after maximum aggregation: 27425 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 114260 Unique aggregates announced from the LACNIC address blocks: 48395 LACNIC Region origin ASes present in the Internet Routing Table: 10939 LACNIC Prefixes per ASN: 10.45 LACNIC Region origin ASes announcing only one prefix: 2648 LACNIC Region transit ASes present in the Internet Routing Table: 2219 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 65 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8636 Number of LACNIC addresses announced to Internet: 176222720 Equivalent to 10 /8s, 128 /16s and 242 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 27727 Total AfriNIC prefixes after maximum aggregation: 5462 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 35790 Unique aggregates announced from the AfriNIC address blocks: 11615 AfriNIC Region origin ASes present in the Internet Routing Table: 1615 AfriNIC Prefixes per ASN: 22.16 AfriNIC Region origin ASes announcing only one prefix: 560 AfriNIC Region transit ASes present in the Internet Routing Table: 337 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 948 Number of AfriNIC addresses announced to Internet: 107382528 Equivalent to 6 /8s, 102 /16s and 135 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9213 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5906 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3584 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3498 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3433 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2393 491 238 BBIL-AP BHARTI Airtel Ltd., IN 4766 2254 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2126 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2114 429 197 TATACOMM-AS TATA Communications formerl 24560 2046 855 372 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 6190 10255 2731 AMAZON-02, US 11492 4471 296 694 CABLEONE, US 22773 3927 3071 359 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3900 264 31 VIASAT-SP-BACKBONE, US 16625 3627 1861 2558 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2613 374 130 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2522 4962 424 CENTURYLINK-US-LEGACY-QWEST, US 20115 2254 3042 494 CHARTER-20115, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6823 1730 149 UNI2-AS, ES 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3908 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 12389 2906 2274 908 ROSTELECOM-AS, RU 6849 2783 355 21 UKRTELNET, UA 9009 2477 247 1285 M247, GB 34984 2228 357 628 TELLCOM-AS, TR 58224 1805 931 604 TCI, IR 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10537 3391 557 Uninet S.A. de C.V., MX 10620 3463 518 756 Telmex Colombia S.A., CO 11830 2430 369 63 Instituto Costarricense de Electricidad 13999 1734 294 472 Mega Cable, S.A. de C.V., MX 6503 1447 355 524 Axtel, S.A.B. de C.V., MX 28573 1385 2333 253 CLARO S.A., BR 3816 1254 667 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1086 369 21 Telefonica del Peru S.A.A., PE 11664 1007 192 448 Techtel LMDS Comunicaciones Interactiva 11172 960 133 63 Alestra, S. de R.L. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1645 393 21 LINKdotNET-AS, EG 24835 1473 523 33 RAYA-AS, EG 36992 1314 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 903 65 59 ORANGE-COTE-IVOIRE, CI 36935 771 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 519 51 35 WANANCHI-, KE 37342 469 32 1 MOVITEL, MZ 23889 421 232 16 MauritiusTelecom, MU Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10537 3391 557 Uninet S.A. de C.V., MX 9808 9213 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6823 1730 149 UNI2-AS, ES 16509 6190 10255 2731 AMAZON-02, US 7545 5906 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4471 296 694 CABLEONE, US 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3927 3071 359 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3908 3360 192 AKAMAI-ASN1, NL 7155 3900 264 31 VIASAT-SP-BACKBONE, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9213 9172 CHINAMOBILE-CN China Mobile Communications Grou 12479 6823 6674 UNI2-AS, ES 7545 5906 5209 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4010 3971 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3900 3869 VIASAT-SP-BACKBONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 11492 4471 3777 CABLEONE, US 20940 3908 3716 AKAMAI-ASN1, NL 22773 3927 3568 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3584 3565 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US 32306 UNALLOCATED 8.46.80.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 41.57.124.0/22 Origin: 37442 UNASSIGNED 41.57.124.0/22 Transit: 37204 TELONE, ZW 41.57.124.0/23 Origin: 37442 UNASSIGNED 41.57.124.0/23 Transit: 37204 TELONE, ZW 41.57.124.0/24 Origin: 37442 UNASSIGNED 41.57.124.0/24 Transit: 37204 TELONE, ZW Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:13 /10:39 /11:100 /12:303 /13:587 /14:1197 /15:2090 /16:13488 /17:8163 /18:13738 /19:24826 /20:42313 /21:50811 /22:106993 /23:94223 /24:520807 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:2 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5802 6823 UNI2-AS, ES 8151 4199 10537 Uninet S.A. de C.V., MX 8551 3476 4010 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3377 4471 CABLEONE, US 6327 3243 3430 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2990 3900 VIASAT-SP-BACKBONE, US 22773 2932 3927 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2641 2783 UKRTELNET, UA 30036 2269 2613 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1924 2:1033 3:154 4:7 5:3789 6:103 7:5 8:1523 9:1 11:172 12:1713 13:292 14:2377 15:190 16:45 17:381 18:152 20:194 21:4 22:188 23:5580 24:2281 25:4 27:2587 29:19 31:2417 32:93 34:1 35:72 36:1775 37:4423 38:2749 39:724 40:153 41:3910 42:1087 43:2151 44:287 45:15980 46:4110 47:319 49:1656 50:1922 51:99 52:1410 53:1 54:368 55:780 56:8 57:59 58:1688 59:1114 60:957 61:2258 62:2481 63:1953 64:5493 65:2302 66:4813 67:2970 68:1181 69:4142 70:1339 71:657 72:3057 74:2657 75:1389 76:588 77:2157 78:1843 79:3110 80:1977 81:1603 82:1486 83:1197 84:1350 85:2897 86:711 87:1962 88:1094 89:3259 90:525 91:7600 92:1989 93:2585 94:3465 95:3854 96:1300 97:346 98:986 99:741 100:74 101:1074 102:2048 103:28730 104:4363 105:466 106:852 107:2534 108:818 109:4210 110:2051 111:3261 112:2028 113:1454 114:1476 115:1949 116:1871 117:2534 118:2329 119:1884 120:1668 121:1012 122:2524 123:2095 124:1536 125:2047 128:1160 129:1216 130:911 131:2058 132:795 133:373 134:1922 135:289 136:880 137:872 138:2440 139:1492 140:852 141:1384 142:1289 143:1474 144:1237 145:342 146:1793 147:1477 148:2218 149:1700 150:849 151:1082 152:1841 153:459 154:3486 155:1435 156:1760 157:1222 158:1033 159:2087 160:2467 161:1310 162:3432 163:1236 164:1626 165:1616 166:697 167:1734 168:3765 169:707 170:4447 171:823 172:3124 173:3078 174:1018 175:1143 176:3487 177:4607 178:3467 179:2011 180:2317 181:2934 182:3190 183:1951 184:2385 185:19468 186:4390 187:3634 188:3865 189:3158 190:8891 191:1334 192:10974 193:8561 194:6941 195:4957 196:2943 197:2404 198:5980 199:6008 200:7391 201:5690 202:10172 203:9971 204:4543 205:3382 206:3693 207:3350 208:4044 209:4651 210:4048 211:2338 212:3978 213:3419 214:1156 215:67 216:6419 217:2665 218:1247 219:406 220:1671 221:977 222:671 223:2114 End of report