IPv4 R&E Routing Table Report 23:05 GMT Thu 14 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: 880424 Prefixes after maximum aggregation (per Origin AS): 334485 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 429619 Number of IPv4 prefixes with a valid ROA: 314659 Number of IPv4 prefixes with an invalid ROA: 1166 Number of IPv4 prefixes with no ROA: 564599 Total ASes present in the Internet Routing Table: 72789 Prefixes per ASN: 12.10 Origin-only ASes present in the Internet Routing Table: 62486 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: 370 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: 1029 Number of instances of unregistered ASNs: 1035 Number of 32-bit ASNs allocated by the RIRs: 39086 Number of 32-bit ASNs visible in the Routing Table: 32418 Prefixes from 32-bit ASNs in the Routing Table: 152546 Number of bogon 32-bit ASNs visible in the Routing Table: 22 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 676 Number of addresses announced to Internet: 3066578688 Equivalent to 182 /8s, 200 /16s and 71 /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: 295655 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228904 Total APNIC prefixes after maximum aggregation: 65871 APNIC Deaggregation factor: 3.48 Prefixes being announced from the APNIC address blocks: 223803 Unique aggregates announced from the APNIC address blocks: 94450 APNIC Region origin ASes present in the Internet Routing Table: 12469 APNIC Prefixes per ASN: 17.95 APNIC Region origin ASes announcing only one prefix: 3540 APNIC Region transit ASes present in the Internet Routing Table: 1707 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7734 Number of APNIC addresses announced to Internet: 773347840 Equivalent to 46 /8s, 24 /16s and 90 /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: 259390 Total ARIN prefixes after maximum aggregation: 119280 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 259510 Unique aggregates announced from the ARIN address blocks: 124269 ARIN Region origin ASes present in the Internet Routing Table: 18921 ARIN Prefixes per ASN: 13.72 ARIN Region origin ASes announcing only one prefix: 6890 ARIN Region transit ASes present in the Internet Routing Table: 1882 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 38 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4423 Number of ARIN addresses announced to Internet: 1295048960 Equivalent to 77 /8s, 48 /16s and 225 /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: 248857 Total RIPE prefixes after maximum aggregation: 115835 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246212 Unique aggregates announced from the RIPE address blocks: 150420 RIPE Region origin ASes present in the Internet Routing Table: 28088 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12027 RIPE Region transit ASes present in the Internet Routing Table: 4001 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: 10666 Number of RIPE addresses announced to Internet: 714045184 Equivalent to 42 /8s, 143 /16s and 119 /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: 114401 Total LACNIC prefixes after maximum aggregation: 27334 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 114294 Unique aggregates announced from the LACNIC address blocks: 48290 LACNIC Region origin ASes present in the Internet Routing Table: 10943 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2652 LACNIC Region transit ASes present in the Internet Routing Table: 2214 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: 8642 Number of LACNIC addresses announced to Internet: 176323584 Equivalent to 10 /8s, 130 /16s and 124 /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: 27843 Total AfriNIC prefixes after maximum aggregation: 5455 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 35929 Unique aggregates announced from the AfriNIC address blocks: 11640 AfriNIC Region origin ASes present in the Internet Routing Table: 1618 AfriNIC Prefixes per ASN: 22.21 AfriNIC Region origin ASes announcing only one prefix: 561 AfriNIC Region transit ASes present in the Internet Routing Table: 335 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: 953 Number of AfriNIC addresses announced to Internet: 107349504 Equivalent to 6 /8s, 102 /16s and 6 /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 9214 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5911 789 698 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3607 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3498 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3431 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 2130 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2115 429 197 TATACOMM-AS TATA Communications formerl 24560 2044 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 6208 10269 2692 AMAZON-02, US 11492 4472 297 692 CABLEONE, US 22773 3930 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 2616 374 118 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 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3917 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 12389 2904 2274 909 ROSTELECOM-AS, RU 6849 2761 355 21 UKRTELNET, UA 9009 2464 245 1276 M247, GB 34984 2232 357 629 TELLCOM-AS, TR 58224 1806 931 605 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 10547 3392 560 Uninet S.A. de C.V., MX 10620 3464 518 757 Telmex Colombia S.A., CO 11830 2430 369 63 Instituto Costarricense de Electricidad 13999 1736 294 473 Mega Cable, S.A. de C.V., MX 6503 1453 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 1009 193 449 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 520 51 35 WANANCHI-, KE 37342 468 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 10547 3392 560 Uninet S.A. de C.V., MX 9808 9214 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6823 1730 149 UNI2-AS, ES 16509 6208 10269 2692 AMAZON-02, US 7545 5911 789 698 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4472 297 692 CABLEONE, US 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3930 3071 359 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3917 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 9214 9173 CHINAMOBILE-CN China Mobile Communications Grou 12479 6823 6674 UNI2-AS, ES 7545 5911 5213 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4009 3970 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3900 3869 VIASAT-SP-BACKBONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 11492 4472 3780 CABLEONE, US 20940 3917 3725 AKAMAI-ASN1, NL 7552 3607 3588 VIETEL-AS-AP Viettel Group, VN 22773 3930 3571 ASN-CXA-ALL-CCI-22773-RDC, US 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 19397 UNALLOCATED 8.5.244.0/24 174 COGENT-174, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 19397 UNALLOCATED 8.15.12.0/24 3356 LEVEL3, 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 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 /13:588 /14:1200 /15:2091 /16:13500 /17:8180 /18:13744 /19:24838 /20:42340 /21:50889 /22:107019 /23:94317 /24:521239 /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 5801 6823 UNI2-AS, ES 8151 4205 10547 Uninet S.A. de C.V., MX 8551 3475 4009 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3378 4472 CABLEONE, US 6327 3243 3430 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2990 3900 VIASAT-SP-BACKBONE, US 22773 2934 3930 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2623 2761 UKRTELNET, UA 30036 2272 2616 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1926 2:1032 3:154 4:7 5:3790 6:103 7:5 8:1523 9:1 11:172 12:1708 13:291 14:2380 15:191 16:45 17:381 18:156 20:194 21:4 22:188 23:5592 24:2274 25:4 27:2603 29:19 31:2422 32:93 34:1 35:73 36:1777 37:4423 38:2758 39:726 40:153 41:3934 42:1087 43:2154 44:288 45:15970 46:4122 47:307 49:1650 50:1933 51:99 52:1410 53:1 54:363 55:708 56:8 57:59 58:1690 59:1114 60:957 61:2258 62:2477 63:1953 64:5487 65:2299 66:4814 67:2974 68:1181 69:4137 70:1341 71:657 72:3046 74:2660 75:1388 76:589 77:2171 78:1843 79:3112 80:1982 81:1602 82:1482 83:1197 84:1348 85:2899 86:706 87:1962 88:1094 89:3260 90:524 91:7605 92:1988 93:2583 94:3465 95:3860 96:1294 97:348 98:988 99:740 100:74 101:1282 102:2047 103:28779 104:4364 105:466 106:856 107:2535 108:820 109:4216 110:2051 111:3261 112:2026 113:1454 114:1476 115:1953 116:1880 117:2533 118:2323 119:1883 120:1668 121:1012 122:2523 123:2098 124:1536 125:2047 128:1163 129:1216 130:956 131:2044 132:795 133:373 134:1920 135:289 136:881 137:873 138:2443 139:1493 140:851 141:1387 142:1287 143:1472 144:1235 145:342 146:1796 147:1485 148:2223 149:1701 150:855 151:1082 152:1836 153:458 154:3493 155:1440 156:1770 157:1224 158:1035 159:2083 160:2467 161:1313 162:3446 163:1245 164:1618 165:1615 166:697 167:1738 168:3770 169:707 170:4458 171:826 172:3141 173:3078 174:1019 175:1143 176:3508 177:4611 178:3477 179:2007 180:2316 181:2934 182:3189 183:1947 184:2384 185:19427 186:4402 187:3637 188:3864 189:3165 190:8858 191:1322 192:10973 193:8572 194:6952 195:4930 196:2974 197:2410 198:5984 199:6014 200:7417 201:5671 202:10170 203:9980 204:4550 205:3374 206:3691 207:3358 208:4045 209:4652 210:4047 211:2339 212:3980 213:3419 214:1159 215:67 216:6425 217:2670 218:1249 219:406 220:1671 221:977 222:670 223:2113 End of report