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 21 Jun, 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: 1014404 Prefixes after maximum aggregation (per Origin AS): 381812 Deaggregation factor: 2.66 Unique aggregates announced (without unneeded subnets): 482851 Number of IPv4 prefixes with a valid ROA: 564523 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 449862 Total ASes present in the Internet Routing Table: 77033 Prefixes per ASN: 13.17 Origin-only ASes present in the Internet Routing Table: 65930 Origin ASes announcing only one prefix: 26661 Transit ASes present in the Internet Routing Table: 11103 Transit-only ASes present in the Internet Routing Table: 572 Paths with bogon ASNs present in the IPv4 Routing Table: 68 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 57 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 1146 Number of instances of unregistered ASNs: 1183 Number of 32-bit ASNs allocated by the RIRs: 46694 Number of 32-bit ASNs visible in the Routing Table: 38446 Prefixes from 32-bit ASNs in the Routing Table: 209837 Number of bogon 32-bit ASNs visible in the Routing Table: 90 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 314 Number of addresses announced to Internet: 3111446592 Equivalent to 185 /8s, 116 /16s and 232 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 331371 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 272085 Total APNIC prefixes after maximum aggregation: 78203 APNIC Deaggregation factor: 3.48 Prefixes being announced from the APNIC address blocks: 263491 Unique aggregates announced from the APNIC address blocks: 104782 APNIC Region origin ASes present in the Internet Routing Table: 14747 APNIC Prefixes per ASN: 17.87 APNIC Region origin ASes announcing only one prefix: 4465 APNIC Region transit ASes present in the Internet Routing Table: 1993 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10206 Number of APNIC addresses announced to Internet: 754287424 Equivalent to 44 /8s, 245 /16s and 131 /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: 293974 Total ARIN prefixes after maximum aggregation: 131294 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 295673 Unique aggregates announced from the ARIN address blocks: 139598 ARIN Region origin ASes present in the Internet Routing Table: 19227 ARIN Prefixes per ASN: 15.38 ARIN Region origin ASes announcing only one prefix: 7018 ARIN Region transit ASes present in the Internet Routing Table: 2002 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5226 Number of ARIN addresses announced to Internet: 1349764096 Equivalent to 80 /8s, 115 /16s and 196 /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: 280479 Total RIPE prefixes after maximum aggregation: 134999 RIPE Deaggregation factor: 2.08 Prefixes being announced from the RIPE address blocks: 279150 Unique aggregates announced from the RIPE address blocks: 175596 RIPE Region origin ASes present in the Internet Routing Table: 28934 RIPE Prefixes per ASN: 9.65 RIPE Region origin ASes announcing only one prefix: 12027 RIPE Region transit ASes present in the Internet Routing Table: 4011 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12510 Number of RIPE addresses announced to Internet: 731118272 Equivalent to 43 /8s, 147 /16s and 250 /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: 130215 Total LACNIC prefixes after maximum aggregation: 29890 LACNIC Deaggregation factor: 4.36 Prefixes being announced from the LACNIC address blocks: 126640 Unique aggregates announced from the LACNIC address blocks: 48946 LACNIC Region origin ASes present in the Internet Routing Table: 11270 LACNIC Prefixes per ASN: 11.24 LACNIC Region origin ASes announcing only one prefix: 2485 LACNIC Region transit ASes present in the Internet Routing Table: 2518 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 57 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9217 Number of LACNIC addresses announced to Internet: 171297344 Equivalent to 10 /8s, 53 /16s and 202 /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: 36505 Total AfriNIC prefixes after maximum aggregation: 6679 AfriNIC Deaggregation factor: 5.47 Prefixes being announced from the AfriNIC address blocks: 49136 Unique aggregates announced from the AfriNIC address blocks: 13641 AfriNIC Region origin ASes present in the Internet Routing Table: 1923 AfriNIC Prefixes per ASN: 25.55 AfriNIC Region origin ASes announcing only one prefix: 666 AfriNIC Region transit ASes present in the Internet Routing Table: 381 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: 1287 Number of AfriNIC addresses announced to Internet: 104822016 Equivalent to 6 /8s, 63 /16s and 117 /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 11374 8919 162 CHINAMOBILE-CN China Mobile Communication 7545 6170 846 639 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4885 4192 75 ERX-CERNET-BKB China Education and Resear 18403 4398 347 25 FPT-AS-AP FPT Telecom Company, VN 45899 4392 1874 56 VNPT-AS-VN VNPT Corp, VN 9498 4333 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3947 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3697 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 24560 2889 856 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2327 831 218 CMNET-JIANGSU-AP China Mobile communicati 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 13654 40957 5235 AMAZON-02, US 174 5359 8743 861 COGENT-174, US 11492 4780 317 603 CABLEONE, US 7155 3871 287 89 VIASAT-SP-BACKBONE, US 6327 3636 1320 81 SHAW, CA 22773 3348 3016 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 396982 3191 3854 427 GOOGLE-CLOUD-PLATFORM, US 16625 3016 1262 2227 AKAMAI-AS, US 36352 2823 230 852 AS-COLOCROSSING, 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 7674 1713 148 UNI2-AS, ES 39891 4780 291 66 ALJAWWALSTC-AS, SA 20940 3967 3395 139 AKAMAI-ASN1, NL 9009 3900 358 2102 M247, RO 12389 3121 2304 886 ROSTELECOM-AS PJSC Rostelecom. Technical 5384 2417 585 29 EMIRATES-INTERNET Emirates Internet, AE 34984 2401 361 576 TELLCOM-AS, TR 212238 2313 169 1695 CDNEXT, GB 8452 1622 1852 14 TE-AS TE-AS, EG 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 12217 3256 574 UNINET, MX 10620 3505 481 1017 Telmex Colombia S.A., CO 13999 2536 537 354 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1372 2436 260 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1199 371 22 Telefonica del Peru S.A.A., PE 22884 1081 69 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 28202 1052 52 9 MASTER SA, BR 26615 1049 2503 52 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 1821 644 27 RAYA-AS, EG 24863 1621 389 17 LINKdotNET-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1077 523 47 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 568 82 3 KENET-AS, KE 15399 540 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 13654 40957 5235 AMAZON-02, US 8151 12217 3256 574 UNINET, MX 9808 11374 8919 162 CHINAMOBILE-CN China Mobile Communication 12479 7674 1713 148 UNI2-AS, ES 7545 6170 846 639 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5359 8743 861 COGENT-174, US 4538 4885 4192 75 ERX-CERNET-BKB China Education and Resear 11492 4780 317 603 CABLEONE, US 39891 4780 291 66 ALJAWWALSTC-AS, SA 18403 4398 347 25 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12217 11643 UNINET, MX 9808 11374 11212 CHINAMOBILE-CN China Mobile Communications Grou 12479 7674 7526 UNI2-AS, ES 7545 6170 5531 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4885 4810 ERX-CERNET-BKB China Education and Research Net 39891 4780 4714 ALJAWWALSTC-AS, SA 174 5359 4498 COGENT-174, US 18403 4398 4373 FPT-AS-AP FPT Telecom Company, VN 45899 4392 4336 VNPT-AS-VN VNPT Corp, VN 11492 4780 4177 CABLEONE, 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, 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 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, US 23.159.56.0/24 Origin: 174 COGENT-174, US 23.159.56.0/24 Transit: 2914 NTT-DATA-2914, 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 /12:301 /13:585 /14:1214 /15:2171 /16:13969 /17:8519 /18:14343 /19:25445 /20:46134 /21:53491 /22:114493 /23:107289 /24:625550 /25:126 /26:112 /27:98 /28:19 /29:74 /30:8 /31:0 /32:300 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6596 7674 UNI2-AS, ES 8151 6431 12217 UNINET, MX 11492 3576 4780 CABLEONE, US 39891 3489 4780 ALJAWWALSTC-AS, SA 6327 3431 3636 SHAW, CA 7155 2829 3871 VIASAT-SP-BACKBONE, US 22773 2501 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2348 13654 AMAZON-02, US 30036 2254 2595 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2192 3505 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) ---------------------------------------------- 1:2446 2:1565 3:827 4:12 5:4843 6:162 7:6 8:1603 9:1 11:172 12:1347 13:450 14:2595 15:363 16:285 17:380 18:922 20:569 21:4 22:188 23:7625 24:2879 25:2 27:2837 29:19 31:3419 32:41 33:1 34:84 35:258 36:3171 37:4621 38:10508 39:915 40:175 41:4402 42:1968 43:2729 44:385 45:19203 46:5210 47:339 49:1977 50:1885 51:591 52:1565 54:324 55:1082 56:11 57:275 58:2327 59:1328 60:1203 61:3160 62:3016 63:1809 64:5523 65:2180 66:4683 67:3084 68:1110 69:3947 70:1072 71:631 72:2865 74:2814 75:1514 76:622 77:2751 78:1861 79:1731 80:2247 81:2075 82:3183 83:1486 84:1884 85:3451 86:1193 87:2400 88:1354 89:4442 90:771 91:8472 92:2794 93:2964 94:4175 95:4387 96:1472 97:311 98:982 99:687 100:72 101:1449 102:4081 103:32862 104:5155 105:1190 106:1052 107:2662 108:1254 109:4164 110:2280 111:3361 112:2169 113:1879 114:2018 115:2242 116:2147 117:2584 118:2929 119:2030 120:2118 121:1456 122:2935 123:2619 124:1731 125:2925 126:93 128:1674 129:968 130:1321 131:2095 132:790 133:451 134:1554 135:392 136:1351 137:1263 138:2984 139:1661 140:1639 141:1507 142:1917 143:1899 144:1162 145:544 146:2206 147:2118 148:2691 149:2995 150:1286 151:1982 152:2085 153:586 154:7644 155:1765 156:2843 157:1925 158:1327 159:2499 160:3632 161:1901 162:3886 163:2241 164:1850 165:2025 166:1498 167:2001 168:4134 169:794 170:5307 171:1029 172:4453 173:3360 174:920 175:1332 176:3794 177:5284 178:3777 179:2448 180:2716 181:4252 182:3499 183:2202 184:2109 185:21662 186:5456 187:4889 188:4426 189:4474 190:9827 191:1901 192:11345 193:9527 194:7991 195:5756 196:3343 197:3262 198:6127 199:8538 200:8534 201:6479 202:10881 203:10987 204:4565 205:3643 206:4535 207:3513 208:4319 209:5166 210:4953 211:2764 212:4655 213:3782 214:1023 215:48 216:6801 217:3370 218:1428 219:598 220:2090 221:1151 222:977 223:2537 End of report