Global R&E Routing Table Report 23:15 GMT Thu 22 Apr, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/singapore/ Analysis Summary ---------------- BGP routing table entries examined: 833325 Prefixes after maximum aggregation (per Origin AS): 317165 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 405593 Total ASes present in the Internet Routing Table: 70802 Prefixes per ASN: 11.77 Origin-only ASes present in the Internet Routing Table: 60948 Origin ASes announcing only one prefix: 25211 Transit ASes present in the Internet Routing Table: 9854 Transit-only ASes present in the Internet Routing Table: 314 Average AS path length visible in the Internet Routing Table: 3.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37385) 33 Prefixes from unregistered ASNs in the Routing Table: 1006 Number of instances of unregistered ASNs: 1010 Number of 32-bit ASNs allocated by the RIRs: 35792 Number of 32-bit ASNs visible in the Routing Table: 29648 Prefixes from 32-bit ASNs in the Routing Table: 133368 Number of bogon 32-bit ASNs visible in the Routing Table: 9 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 499 Number of addresses announced to Internet: 3031338240 Equivalent to 180 /8s, 174 /16s and 141 /24s Percentage of available address space announced: 81.9 Percentage of allocated address space announced: 81.9 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: 281369 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 214454 Total APNIC prefixes after maximum aggregation: 62797 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 210657 Unique aggregates announced from the APNIC address blocks: 88960 APNIC Region origin ASes present in the Internet Routing Table: 11340 APNIC Prefixes per ASN: 18.58 APNIC Region origin ASes announcing only one prefix: 3251 APNIC Region transit ASes present in the Internet Routing Table: 1592 Average APNIC Region AS path length visible: 3.2 Max APNIC Region AS path length visible: 30 Number of APNIC region 32-bit ASNs visible in the Routing Table: 6560 Number of APNIC addresses announced to Internet: 771894528 Equivalent to 46 /8s, 2 /16s and 45 /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, 131072-143673 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: 244546 Total ARIN prefixes after maximum aggregation: 112382 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 244918 Unique aggregates announced from the ARIN address blocks: 117785 ARIN Region origin ASes present in the Internet Routing Table: 18679 ARIN Prefixes per ASN: 13.11 ARIN Region origin ASes announcing only one prefix: 6782 ARIN Region transit ASes present in the Internet Routing Table: 1915 Average ARIN Region AS path length visible: 3.7 Max ARIN Region AS path length visible: 30 Number of ARIN region 32-bit ASNs visible in the Routing Table: 3812 Number of ARIN addresses announced to Internet: 1264007168 Equivalent to 75 /8s, 87 /16s and 56 /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: 235994 Total RIPE prefixes after maximum aggregation: 110195 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 231943 Unique aggregates announced from the RIPE address blocks: 141402 RIPE Region origin ASes present in the Internet Routing Table: 27881 RIPE Prefixes per ASN: 8.32 RIPE Region origin ASes announcing only one prefix: 11990 RIPE Region transit ASes present in the Internet Routing Table: 3893 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10129 Number of RIPE addresses announced to Internet: 711027968 Equivalent to 42 /8s, 97 /16s and 109 /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: 111887 Total LACNIC prefixes after maximum aggregation: 26121 LACNIC Deaggregation factor: 4.28 Prefixes being announced from the LACNIC address blocks: 113049 Unique aggregates announced from the LACNIC address blocks: 46947 LACNIC Region origin ASes present in the Internet Routing Table: 10728 LACNIC Prefixes per ASN: 10.54 LACNIC Region origin ASes announcing only one prefix: 2696 LACNIC Region transit ASes present in the Internet Routing Table: 2009 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 32 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8352 Number of LACNIC addresses announced to Internet: 176220160 Equivalent to 10 /8s, 128 /16s and 232 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 25429 Total AfriNIC prefixes after maximum aggregation: 4930 AfriNIC Deaggregation factor: 5.16 Prefixes being announced from the AfriNIC address blocks: 32259 Unique aggregates announced from the AfriNIC address blocks: 10047 AfriNIC Region origin ASes present in the Internet Routing Table: 1450 AfriNIC Prefixes per ASN: 22.25 AfriNIC Region origin ASes announcing only one prefix: 492 AfriNIC Region transit ASes present in the Internet Routing Table: 287 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 795 Number of AfriNIC addresses announced to Internet: 107767552 Equivalent to 6 /8s, 108 /16s and 103 /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 7545 5727 783 668 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5196 8995 52 CMNET-GD Guangdong Mobile Communication 7713 3530 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 7552 3482 1330 20 VIETEL-AS-AP Viettel Group, VN 45899 2983 1896 54 VNPT-AS-VN VNPT Corp, VN 9498 2336 481 236 BBIL-AP BHARTI Airtel Ltd., IN 4766 2209 11358 561 KIXS-AS-KR Korea Telecom, KR 4755 2118 441 191 TATACOMM-AS TATA Communications formerl 45090 2063 1197 72 CNNIC-TENCENT-NET-AP Shenzhen Tencent C 23969 1947 314 16 TOT-NET TOT Public Company Limited, TH 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 5018 9340 2237 AMAZON-02, US 11492 4753 315 710 CABLEONE, US 7155 4030 264 32 VIASAT-SP-BACKBONE, US 22773 3928 3005 249 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3428 1768 2436 AKAMAI-AS, US 6327 3360 1317 69 SHAW, CA 30036 2559 373 127 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2529 5039 486 CENTURYLINK-US-LEGACY-QWEST, US 5650 2345 2997 1640 FRONTIER-FRTR, US 5972 2230 451 783 DNIC-ASBLK-05800-06055, 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 6488 1725 144 UNI2-AS, ES 20940 3576 3359 188 AKAMAI-ASN1, NL 8551 3352 379 41 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3266 187 22 ALJAWWALSTC-AS, SA 12389 2879 2284 898 ROSTELECOM-AS, RU 9009 2407 246 1287 M247, GB 34984 2216 357 586 TELLCOM-AS, TR 13188 1610 100 31 TRIOLAN, UA 58224 1578 883 572 TCI, IR 61317 1556 277 754 ASDETUK http://www.heficed.com, GB 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 8513 3473 573 Uninet S.A. de C.V., MX 10620 3410 526 614 Telmex Colombia S.A., CO 11830 2490 369 62 Instituto Costarricense de Electricidad 7303 1899 2063 73 Telecom Argentina S.A., AR 13999 1672 447 425 Mega Cable, S.A. de C.V., MX 6503 1443 311 475 Axtel, S.A.B. de C.V., MX 28573 1374 2276 223 CLARO S.A., BR 3816 1228 644 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1130 377 39 Telefonica del Peru S.A.A., PE 11664 1004 212 402 Techtel LMDS Comunicaciones Interactiva 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 1586 393 22 LINKdotNET-AS, EG 24835 1443 486 27 RAYA-AS, EG 36992 1202 1537 176 ETISALAT-MISR, EG 36903 1187 529 111 MT-MPLS, MA 29571 730 68 11 ORANGE-COTE-IVOIRE, CI 6713 549 1863 34 IAM-AS, MA 36935 517 522 40 Vodafone-, EG 37342 484 32 1 MOVITEL, MZ 15399 478 48 23 WANANCHI-, KE 23889 439 232 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 8513 3473 573 Uninet S.A. de C.V., MX 12479 6488 1725 144 UNI2-AS, ES 7545 5727 783 668 TPG-INTERNET-AP TPG Telecom Limited, AU 9808 5196 8995 52 CMNET-GD Guangdong Mobile Communication 16509 5018 9340 2237 AMAZON-02, US 11492 4753 315 710 CABLEONE, US 7155 4030 264 32 VIASAT-SP-BACKBONE, US 22773 3928 3005 249 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3576 3359 188 AKAMAI-ASN1, NL 7713 3530 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon Complete listing at https://bgp.nsrc.org/REN/singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 12479 6488 6344 UNI2-AS, ES 9808 5196 5144 CMNET-GD Guangdong Mobile Communication Co.Ltd. 7545 5727 5059 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4753 4043 CABLEONE, US 7155 4030 3998 VIASAT-SP-BACKBONE, US 22773 3928 3679 ASN-CXA-ALL-CCI-22773-RDC, US 7713 3530 3474 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID 7552 3482 3462 VIETEL-AS-AP Viettel Group, VN 20940 3576 3388 AKAMAI-ASN1, NL 8551 3352 3311 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 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 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 23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46766 UNALLOCATED 8.44.208.0/24 3356 LEVEL3, US 40544 UNALLOCATED 12.0.33.0/24 6461 ZAYO-6461, US 46505 UNALLOCATED 12.7.131.0/24 7018 ATT-INTERNET4, US 15132 UNALLOCATED 12.9.150.0/24 1239 SPRINTLINK, 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 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.80.0/24 Origin: 398481 REDMERCURY, US Transit: 209319 IPV6ROUTING, US 27.100.7.0/24 Origin: 56096 UNASSIGNED Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 27.126.156.0/22 Origin: 55827 UNASSIGNED Transit: 9930 TTNET-MY TIME dotCom Berhad No. 14, Jala 27.126.156.0/23 Origin: 55827 UNASSIGNED Transit: 9930 TTNET-MY TIME dotCom Berhad No. 14, Jala 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 /10:40 /11:101 /12:294 /13:584 /14:1183 /15:1941 /16:13494 /17:8192 /18:13606 /19:25192 /20:40670 /21:49261 /22:103974 /23:88811 /24:485944 /25:0 /26:1 /27:0 /28:0 /29:1 /30:3 /31:0 /32:4 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5441 6488 UNI2-AS, ES 11492 3804 4753 CABLEONE, US 6327 3168 3360 SHAW, CA 7155 3118 4030 VIASAT-SP-BACKBONE, US 8151 3079 8513 Uninet S.A. de C.V., MX 22773 2957 3928 ASN-CXA-ALL-CCI-22773-RDC, US 8551 2816 3352 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 39891 2801 3266 ALJAWWALSTC-AS, SA 30036 2234 2559 MEDIACOM-ENTERPRISE-BUSINESS, US 5650 2000 2345 FRONTIER-FRTR, US Complete listing at https://bgp.nsrc.org/REN/singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1867 2:1106 3:111 4:19 5:3522 6:65 7:5 8:1482 11:36 12:1748 13:359 14:2187 15:76 16:15 17:320 18:93 20:122 22:188 23:4632 24:2349 25:2 27:2525 29:19 31:2327 32:107 34:2 35:40 36:1243 37:3757 38:2070 39:577 40:159 41:3661 42:924 43:2097 44:237 45:14935 46:3655 47:259 49:1562 50:1773 51:85 52:1236 54:222 55:760 56:8 57:55 58:1604 59:1059 60:887 61:2245 62:2202 63:1949 64:5268 65:2321 66:5130 67:2876 68:1151 69:4010 70:1398 71:689 72:3163 74:2576 75:1484 76:684 77:2030 78:1674 79:2487 80:1863 81:1517 82:1345 83:1116 84:1256 85:2665 86:706 87:1790 88:956 89:3011 90:443 91:7308 92:1749 93:2525 94:3104 95:3483 96:1263 97:344 98:988 99:969 100:76 101:1202 102:1407 103:25766 104:3744 105:435 106:719 107:2252 108:694 109:4016 110:1888 111:2705 112:1860 113:1294 114:1454 115:1922 116:1802 117:2182 118:2254 119:1827 120:1064 121:997 122:2211 123:2162 124:1497 125:1904 128:1312 129:955 130:834 131:2027 132:706 133:355 134:1585 135:288 136:735 137:922 138:2303 139:1173 140:719 141:1184 142:1144 143:1266 144:1257 145:329 146:1393 147:1289 148:2177 149:1399 150:801 151:1077 152:1537 153:394 154:2298 155:1320 156:1487 157:1166 158:916 159:2045 160:2122 161:1121 162:3265 163:981 164:1509 165:1381 166:585 167:1788 168:3550 169:673 170:4165 171:765 172:2137 173:2918 174:988 175:1075 176:3095 177:4342 178:2892 179:1954 180:2364 181:2585 182:3163 183:1641 184:2426 185:18138 186:4181 187:3187 188:3292 189:2828 190:8803 191:1373 192:10645 193:8008 194:6572 195:4702 196:2853 197:2170 198:5999 199:6003 200:7374 201:5327 202:10181 203:10041 204:4607 205:3317 206:3477 207:3278 208:3995 209:4635 210:3936 211:2058 212:3629 213:3329 214:1225 215:61 216:6140 217:2534 218:1035 219:476 220:2022 221:943 222:773 223:1698 End of report