This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 30 Aug, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1018745 Prefixes after maximum aggregation (per Origin AS): 388298 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 492491 Number of IPv4 prefixes with a valid ROA: 576470 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 442256 Total ASes present in the Internet Routing Table: 77380 Prefixes per ASN: 13.17 Origin-only ASes present in the Internet Routing Table: 66228 Origin ASes announcing only one prefix: 26978 Transit ASes present in the Internet Routing Table: 11152 Transit-only ASes present in the Internet Routing Table: 567 Paths with bogon ASNs present in the IPv4 Routing Table: 32 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 1055 Number of instances of unregistered ASNs: 1084 Number of 32-bit ASNs allocated by the RIRs: 47292 Number of 32-bit ASNs visible in the Routing Table: 38928 Prefixes from 32-bit ASNs in the Routing Table: 212267 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 313 Number of addresses announced to Internet: 3112744452 Equivalent to 185 /8s, 136 /16s and 182 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 330201 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 277805 Total APNIC prefixes after maximum aggregation: 79770 APNIC Deaggregation factor: 3.48 Prefixes being announced from the APNIC address blocks: 268434 Unique aggregates announced from the APNIC address blocks: 105594 APNIC Region origin ASes present in the Internet Routing Table: 14881 APNIC Prefixes per ASN: 18.04 APNIC Region origin ASes announcing only one prefix: 4506 APNIC Region transit ASes present in the Internet Routing Table: 2008 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10358 Number of APNIC addresses announced to Internet: 755516736 Equivalent to 45 /8s, 8 /16s and 69 /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: 295754 Total ARIN prefixes after maximum aggregation: 133209 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 297833 Unique aggregates announced from the ARIN address blocks: 142443 ARIN Region origin ASes present in the Internet Routing Table: 19288 ARIN Prefixes per ASN: 15.44 ARIN Region origin ASes announcing only one prefix: 7061 ARIN Region transit ASes present in the Internet Routing Table: 1991 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5310 Number of ARIN addresses announced to Internet: 1349632001 Equivalent to 80 /8s, 113 /16s and 192 /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: 282374 Total RIPE prefixes after maximum aggregation: 137585 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 281614 Unique aggregates announced from the RIPE address blocks: 179366 RIPE Region origin ASes present in the Internet Routing Table: 29070 RIPE Prefixes per ASN: 9.69 RIPE Region origin ASes announcing only one prefix: 12088 RIPE Region transit ASes present in the Internet Routing Table: 4028 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12696 Number of RIPE addresses announced to Internet: 732273795 Equivalent to 43 /8s, 165 /16s and 156 /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: 125846 Total LACNIC prefixes after maximum aggregation: 30213 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 121970 Unique aggregates announced from the LACNIC address blocks: 49466 LACNIC Region origin ASes present in the Internet Routing Table: 11286 LACNIC Prefixes per ASN: 10.81 LACNIC Region origin ASes announcing only one prefix: 2637 LACNIC Region transit ASes present in the Internet Routing Table: 2541 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9246 Number of LACNIC addresses announced to Internet: 170724160 Equivalent to 10 /8s, 45 /16s and 11 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 35911 Total AfriNIC prefixes after maximum aggregation: 6823 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 48581 Unique aggregates announced from the AfriNIC address blocks: 15343 AfriNIC Region origin ASes present in the Internet Routing Table: 1951 AfriNIC Prefixes per ASN: 24.90 AfriNIC Region origin ASes announcing only one prefix: 686 AfriNIC Region transit ASes present in the Internet Routing Table: 384 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1318 Number of AfriNIC addresses announced to Internet: 104402944 Equivalent to 6 /8s, 57 /16s and 16 /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 13065 8889 171 CHINAMOBILE-CN China Mobile Communication 7545 6127 837 606 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4876 4192 75 ERX-CERNET-BKB China Education and Resear 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 45899 4394 1874 55 VNPT-AS-VN VNPT Corp, VN 18403 4390 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3971 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3666 1044 68 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3123 832 227 CMNET-JIANGSU-AP China Mobile communicati 24560 2918 864 505 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14131 40856 5389 AMAZON-02, US 174 4916 8759 841 COGENT-174, US 11492 4744 315 801 CABLEONE, US 7155 3873 287 89 VIASAT-SP-BACKBONE, US 6327 3652 1320 82 SHAW, CA 22773 3348 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 396982 3217 3858 435 GOOGLE-CLOUD-PLATFORM, US 4155 2959 230 1740 USDA-1, US 16625 2931 1243 2175 AKAMAI-AS, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7505 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3941 3396 140 AKAMAI-ASN1, NL 9009 3846 364 2183 M247, RO 12389 3120 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2405 361 586 TELLCOM-AS, TR 5384 2391 585 29 EMIRATES-INTERNET Emirates Internet, AE 212238 2370 169 1726 CDNEXT, GB 203020 1835 221 843 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12304 3273 572 UNINET, MX 10620 3486 472 1048 Telmex Colombia S.A., CO 13999 2532 511 347 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1371 2432 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1197 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1179 371 22 Telefonica del Peru S.A.A., PE 22884 1056 67 379 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1012 2487 55 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1792 660 28 RAYA-AS, EG 29571 1498 94 37 ORANGE-COTE-IVOIRE, CI 36992 1420 1495 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1243 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 972 521 42 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 572 82 3 KENET-AS, KE 15399 548 57 59 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14131 40856 5389 AMAZON-02, US 9808 13065 8889 171 CHINAMOBILE-CN China Mobile Communication 8151 12304 3273 572 UNINET, MX 12479 7505 1711 150 UNI2-AS, ES 7545 6127 837 606 TPG-INTERNET-AP TPG Telecom Limited, AU 174 4916 8759 841 COGENT-174, US 4538 4876 4192 75 ERX-CERNET-BKB China Education and Resear 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4744 315 801 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13065 12894 CHINAMOBILE-CN China Mobile Communications Grou 8151 12304 11732 UNINET, MX 12479 7505 7355 UNI2-AS, ES 7545 6127 5521 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4876 4801 ERX-CERNET-BKB China Education and Research Net 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4390 4364 FPT-AS-AP FPT Telecom Company, VN 45899 4394 4339 VNPT-AS-VN VNPT Corp, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 174 4916 4075 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.159.56.0/24 Origin: 174 COGENT-174, US 23.159.56.0/24 Transit: 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /9:14 /10:41 /11:92 /12:299 /13:581 /14:1214 /15:2168 /16:13876 /17:8436 /18:14265 /19:25393 /20:46241 /21:53297 /22:114245 /23:106417 /24:631386 /25:144 /26:111 /27:116 /28:21 /29:65 /30:7 /31:0 /32:300 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6506 12304 UNINET, MX 12479 6456 7505 UNI2-AS, ES 11492 3560 4744 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3448 3652 SHAW, CA 7155 2831 3873 VIASAT-SP-BACKBONE, US 22773 2501 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2391 14131 AMAZON-02, US 30036 2319 2662 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2206 3486 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2488 2:1605 3:924 4:12 5:4929 6:156 7:6 8:1571 9:4 11:172 12:1253 13:512 14:2674 15:393 16:286 17:388 18:902 20:583 21:4 22:188 23:7858 24:2716 25:2 27:2871 29:19 31:3453 32:33 33:1 34:85 35:260 36:4311 37:4579 38:10499 39:1002 40:266 41:4392 42:1961 43:2837 44:385 45:19020 46:5211 47:361 49:2015 50:2066 51:591 52:1598 54:359 55:1109 56:11 57:289 58:2362 59:1395 60:1210 61:3148 62:3071 63:1789 64:5624 65:2146 66:4849 67:3101 68:1070 69:3982 70:1029 71:636 72:2856 74:2824 75:1514 76:601 77:2778 78:1902 79:1759 80:2263 81:2106 82:3282 83:1497 84:1929 85:3493 86:1226 87:2393 88:1324 89:4521 90:794 91:8474 92:2834 93:3000 94:4286 95:4448 96:1490 97:310 98:949 99:723 100:71 101:1494 102:4188 103:32788 104:5317 105:1023 106:882 107:2660 108:1241 109:4268 110:2278 111:3650 112:2501 113:1890 114:2003 115:2287 116:2167 117:2750 118:3066 119:2057 120:2277 121:1414 122:2956 123:2516 124:1799 125:2939 126:91 128:1611 129:981 130:1302 131:2176 132:782 133:459 134:1625 135:367 136:1481 137:1261 138:2881 139:1668 140:1639 141:1548 142:1905 143:2005 144:1209 145:605 146:2199 147:2139 148:2718 149:2968 150:1265 151:2401 152:2119 153:629 154:7481 155:1979 156:3112 157:1951 158:1465 159:2549 160:3610 161:1950 162:3918 163:2298 164:1918 165:2524 166:1561 167:2069 168:3902 169:785 170:5303 171:1010 172:4249 173:3408 174:904 175:1351 176:3814 177:4972 178:4052 179:2356 180:2669 181:4187 182:3656 183:2355 184:2092 185:21710 186:5310 187:4669 188:4330 189:4405 190:9444 191:1561 192:11420 193:9512 194:7947 195:5804 196:3296 197:3255 198:6140 199:8647 200:8249 201:6463 202:11025 203:10937 204:4576 205:3657 206:4579 207:3562 208:4318 209:5194 210:5070 211:2875 212:4678 213:3843 214:1040 215:51 216:6852 217:3440 218:1520 219:593 220:2162 221:1213 222:1001 223:2874 End of report