[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Apr 18 20:17:01 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Fri 18 Apr, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 268716
Prefixes after maximum aggregation (per Origin AS): 117856
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 141149
Number of IPv4 prefixes with a valid ROA: 121024
Number of IPv4 prefixes with an invalid ROA: 17
Number of IPv4 prefixes with no ROA: 147675
Total ASes present in the Internet Routing Table: 20255
Prefixes per ASN: 13.27
Origin-only ASes present in the Internet Routing Table: 17497
Origin ASes announcing only one prefix: 7881
Transit ASes present in the Internet Routing Table: 2758
Transit-only ASes present in the Internet Routing Table: 726
Paths with bogon ASNs present in the IPv4 Routing Table: 6
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 348
Number of instances of unregistered ASNs: 349
Number of 32-bit ASNs allocated by the RIRs: 46240
Number of 32-bit ASNs visible in the Routing Table: 7620
Prefixes from 32-bit ASNs in the Routing Table: 29202
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 138
Number of addresses announced to Internet: 1562926013
Equivalent to 93 /8s, 40 /16s and 91 /24s
Percentage of available address space announced: 42.2
Percentage of allocated address space announced: 42.2
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: 85894
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32130
Total APNIC prefixes after maximum aggregation: 7559
APNIC Deaggregation factor: 4.25
Prefixes being announced from the APNIC address blocks: 30781
Unique aggregates announced from the APNIC address blocks: 8060
APNIC Region origin ASes present in the Internet Routing Table: 1224
APNIC Prefixes per ASN: 25.15
APNIC Region origin ASes announcing only one prefix: 487
APNIC Region transit ASes present in the Internet Routing Table: 206
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 563
Number of APNIC addresses announced to Internet: 169142380
Equivalent to 10 /8s, 20 /16s and 232 /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: 129167
Total ARIN prefixes after maximum aggregation: 66695
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 126626
Unique aggregates announced from the ARIN address blocks: 68713
ARIN Region origin ASes present in the Internet Routing Table: 9654
ARIN Prefixes per ASN: 13.12
ARIN Region origin ASes announcing only one prefix: 3969
ARIN Region transit ASes present in the Internet Routing Table: 918
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2256
Number of ARIN addresses announced to Internet: 972442817
Equivalent to 57 /8s, 246 /16s and 76 /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: 49699
Total RIPE prefixes after maximum aggregation: 26880
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 51195
Unique aggregates announced from the RIPE address blocks: 37608
RIPE Region origin ASes present in the Internet Routing Table: 4638
RIPE Prefixes per ASN: 11.04
RIPE Region origin ASes announcing only one prefix: 1951
RIPE Region transit ASes present in the Internet Routing Table: 693
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1895
Number of RIPE addresses announced to Internet: 280899664
Equivalent to 16 /8s, 190 /16s and 48 /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: 47085
Total LACNIC prefixes after maximum aggregation: 14268
LACNIC Deaggregation factor: 3.30
Prefixes being announced from the LACNIC address blocks: 46073
Unique aggregates announced from the LACNIC address blocks: 22022
LACNIC Region origin ASes present in the Internet Routing Table: 3606
LACNIC Prefixes per ASN: 12.78
LACNIC Region origin ASes announcing only one prefix: 1361
LACNIC Region transit ASes present in the Internet Routing Table: 726
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 34
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2758
Number of LACNIC addresses announced to Internet: 97692992
Equivalent to 5 /8s, 210 /16s and 173 /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: 10287
Total AfriNIC prefixes after maximum aggregation: 2227
AfriNIC Deaggregation factor: 4.62
Prefixes being announced from the AfriNIC address blocks: 13903
Unique aggregates announced from the AfriNIC address blocks: 4613
AfriNIC Region origin ASes present in the Internet Routing Table: 272
AfriNIC Prefixes per ASN: 51.11
AfriNIC Region origin ASes announcing only one prefix: 113
AfriNIC Region transit ASes present in the Internet Routing Table: 77
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 148
Number of AfriNIC addresses announced to Internet: 42692352
Equivalent to 2 /8s, 139 /16s and 111 /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 10162 8753 88 CHINAMOBILE-CN China Mobile Communication
56046 1590 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1569 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1483 192 53 CMNET-HUNAN-AP China Mobile communication
24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 771 500 72 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
45102 566 879 138 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
17561 472 30 195 LCS-AS-AP LARUS Limited, HK
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13205 39694 4101 AMAZON-02, US
22773 3395 3017 179 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54879 2505 DNIC-AS-00749, US
4155 2643 201 1612 USDA-1, US
367 2434 2890 1175 DNIC-ASBLK-00306-00371, US
36352 2430 201 1098 AS-COLOCROSSING, US
7018 2150 22903 1571 ATT-INTERNET4, US
11776 1892 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1831 3625 459 CELLCO-PART, US
209 1665 4890 275 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1297 100 1044 AKAMAI-ASN1, NL
34984 932 93 524 TELLCOM-AS, TR
3257 930 2075 747 GTT-BACKBONE GTT, US
3215 893 4810 292 France Telecom - Orange, FR
25019 850 1299 129 SAUDINETSTC-AS, SA
8452 657 1842 17 TE-AS TE-AS, EG
8376 585 53 23 Jordan Data Communications, JO
51167 568 113 251 CONTABO, DE
212238 563 40 495 CDNEXT, GB
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7382 2023 1008 UNINET, MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
10620 1929 286 1300 Telmex Colombia S.A., CO
3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1192 371 22 Telefonica del Peru S.A.A., PE
26615 989 2503 52 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 642 77 294 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 548 2884 69 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1488 389 16 LINKdotNET-AS, EG
20011 981 185 285 INTERNET-SOLUTIONS, ZA
29571 960 100 75 ORANGE-COTE-IVOIRE, CI
24835 879 528 38 RAYA-AS, EG
36935 700 519 48 Vodafone-, EG
36992 601 1228 123 ETISALAT-MISR, EG
36914 534 82 3 KENET-AS, KE
37069 533 1046 15 MOBINIL, EG
36903 410 192 301 MT-MPLS, MA
2018 373 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13205 39694 4101 AMAZON-02, US
9808 10162 8753 88 CHINAMOBILE-CN China Mobile Communication
8151 7382 2023 1008 UNINET, MX
22773 3395 3017 179 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54879 2505 DNIC-AS-00749, US
4155 2643 201 1612 USDA-1, US
367 2434 2890 1175 DNIC-ASBLK-00306-00371, US
36352 2430 201 1098 AS-COLOCROSSING, US
7018 2150 22903 1571 ATT-INTERNET4, US
11830 1993 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10162 10074 CHINAMOBILE-CN China Mobile Communications Grou
8151 7382 6374 UNINET, MX
22773 3395 3216 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1993 1929 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1892 1676 ATLANTICBB-JOHNSTOWN, US
56041 1569 1491 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1488 1472 LINKdotNET-AS, EG
56047 1483 1430 CMNET-HUNAN-AP China Mobile communications corp
56046 1590 1404 CMNET-JIANGSU-AP China Mobile communications co
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
53966 UNALLOCATED 8.39.98.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/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
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 RESERVED, ZZ
23.158.216.0/24 Transit: 22427 GNET-AS, US
23.166.120.0/24 Origin: 59993 UILLLC-20230328, US
23.166.120.0/24 Transit: 30456 COSMIC-GLOBAL, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:42 /12:150
/13:216 /14:577 /15:1097 /16:7605 /17:3477 /18:4266
/19:7848 /20:12750 /21:15637 /22:28205 /23:28137 /24:158442
/25:60 /26:76 /27:35 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3893 7382 UNINET, MX
22773 2535 3395 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2354 13205 AMAZON-02, US
11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR
10620 1088 1929 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 984 2430 AS-COLOCROSSING, US
209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US
19901 943 1203 BRSPD-PUBLIC, US
11776 881 1892 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:67 2:461 3:614 4:5 5:834 6:156
7:5 8:653 11:171 12:1007 13:297 14:139
15:301 16:244 17:5 18:891 20:172 21:4
22:188 23:2678 24:667 27:21 29:19 31:474
32:10 34:10 35:133 36:1229 37:1003 38:2023
39:549 40:62 41:890 42:221 43:199 44:51
45:3744 46:956 47:99 49:18 50:365 51:383
52:1391 54:274 55:1091 56:11 57:20 58:45
59:43 60:16 61:72 62:553 63:782 64:2080
65:1108 66:1684 67:1006 68:440 69:1240 70:430
71:210 72:783 74:1025 75:431 76:262 77:475
78:333 79:278 80:304 81:352 82:767 83:250
84:365 85:486 86:239 87:244 88:281 89:839
90:105 91:986 92:614 93:452 94:954 95:681
96:304 97:65 98:483 99:160 100:37 101:19
102:366 103:1260 104:1511 105:138 106:33 107:1503
108:550 109:388 110:65 111:1915 112:451 113:36
114:60 115:14 116:57 117:1034 118:155 119:132
120:1166 121:44 122:128 123:150 124:58 125:24
128:501 129:305 130:685 131:913 132:564 133:213
134:509 135:118 136:600 137:510 138:945 139:447
140:718 141:442 142:1048 143:671 144:432 145:113
146:698 147:532 148:877 149:796 150:375 151:637
152:534 153:131 154:1631 155:797 156:1293 157:370
158:543 159:692 160:827 161:723 162:1045 163:373
164:718 165:834 166:801 167:659 168:1185 169:162
170:1668 171:125 172:1428 173:891 174:286 175:53
176:847 177:868 178:516 179:731 180:48 181:1893
182:29 183:860 184:493 185:3424 186:2310 187:1363
188:786 189:1700 190:4946 191:424 192:5274 193:1842
194:1225 195:949 196:779 197:1558 198:2788 199:4957
200:3843 201:3275 202:1002 203:733 204:2225 205:1993
206:1581 207:1550 208:1488 209:2066 210:308 211:430
212:979 213:881 214:987 215:42 216:2642 217:424
218:518 219:19 220:25 221:304 222:32 223:741
End of report
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