Routing Table Report 08:00 +10GMT Wed 28 Aug, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 460163
Prefixes after maximum aggregation: 185992
Deaggregation factor: 2.47
Unique aggregates announced to Internet: 230536
Total ASes present in the Internet Routing Table: 40837
Prefixes per ASN: 11.27
Origin-only ASes present in the Internet Routing Table: 35065
Origin ASes announcing only one prefix: 16279
Transit ASes present in the Internet Routing Table: 5765
Transit-only ASes present in the Internet Routing Table: 155
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 280764
Unregistered ASNs in the Routing Table: 22631
Number of 32-bit ASNs allocated by the RIRs: 4981
Number of 32-bit ASNs visible in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 11770
Special use prefixes present in the Routing Table: 10
Prefixes being announced from unallocated address space: 365
Number of addresses announced to Internet: 2658452736
Equivalent to 158 /8s, 116 /16s and 197 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.9
Total number of prefixes smaller than registry allocations: 160378
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 106230
Total APNIC prefixes after maximum aggregation: 32648
APNIC Deaggregation factor: 3.25
Prefixes being announced from the APNIC address blocks: 108714
Unique aggregates announced from the APNIC address blocks: 46403
APNIC Region origin ASes present in the Internet Routing Table: 4836
APNIC Prefixes per ASN: 22.48
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 807
Average APNIC Region AS path length visible: 3.8
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1
Number of APNIC addresses announced to Internet: 725699584
Equivalent to 43 /8s, 65 /16s and 76 /24s
Percentage of available APNIC address space announced: 84.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 159895
Total ARIN prefixes after maximum aggregation: 80551
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 160469
Unique aggregates announced from the ARIN address blocks: 75135
ARIN Region origin ASes present in the Internet Routing Table: 15795
ARIN Prefixes per ASN: 10.16
ARIN Region origin ASes announcing only one prefix: 6022
ARIN Region transit ASes present in the Internet Routing Table: 1620
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2
Number of ARIN addresses announced to Internet: 1070741248
Equivalent to 63 /8s, 210 /16s and 55 /24s
Percentage of available ARIN address space announced: 56.6
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, 393216-394239
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,
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: 119526
Total RIPE prefixes after maximum aggregation: 60767
RIPE Deaggregation factor: 1.97
Prefixes being announced from the RIPE address blocks: 123407
Unique aggregates announced from the RIPE address blocks: 79024
RIPE Region origin ASes present in the Internet Routing Table: 17369
RIPE Prefixes per ASN: 7.11
RIPE Region origin ASes announcing only one prefix: 8244
RIPE Region transit ASes present in the Internet Routing Table: 2779
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1
Number of RIPE addresses announced to Internet: 657187840
Equivalent to 39 /8s, 43 /16s and 228 /24s
Percentage of available RIPE address space announced: 95.5
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, 196608-199679
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: 50268
Total LACNIC prefixes after maximum aggregation: 9435
LACNIC Deaggregation factor: 5.33
Prefixes being announced from the LACNIC address blocks: 54888
Unique aggregates announced from the LACNIC address blocks: 25686
LACNIC Region origin ASes present in the Internet Routing Table: 1991
LACNIC Prefixes per ASN: 27.57
LACNIC Region origin ASes announcing only one prefix: 568
LACNIC Region transit ASes present in the Internet Routing Table: 356
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2
Number of LACNIC addresses announced to Internet: 135476736
Equivalent to 8 /8s, 19 /16s and 54 /24s
Percentage of available LACNIC address space announced: 80.8
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus 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: 11726
Total AfriNIC prefixes after maximum aggregation: 2544
AfriNIC Deaggregation factor: 4.61
Prefixes being announced from the AfriNIC address blocks: 12319
Unique aggregates announced from the AfriNIC address blocks: 3945
AfriNIC Region origin ASes present in the Internet Routing Table: 653
AfriNIC Prefixes per ASN: 18.87
AfriNIC Region origin ASes announcing only one prefix: 196
AfriNIC Region transit ASes present in the Internet Routing Table: 129
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1
Number of AfriNIC addresses announced to Internet: 46542336
Equivalent to 2 /8s, 198 /16s and 46 /24s
Percentage of available AfriNIC address space announced: 46.2
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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
17974 2668 903 91 >>UNKNOWN<<
4766 2117 11553 622 Korea Telecom
7545 2055 321 112 TPG Telecom Limited
4755 1793 401 192 TATA Communications formerly
9829 1532 1221 45 >>UNKNOWN<<
9583 1223 92 508 Sify Limited
9498 1181 309 70 BHARTI Airtel Ltd.
7552 1128 1080 13 >>UNKNOWN<<
24560 1089 394 160 >>UNKNOWN<<
4808 1067 2022 309 CNCGROUP IP network China169
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 2976 3689 62 BellSouth.net Inc.
18566 2063 382 183 Covad Communications Co.
22773 2044 2933 125 >>UNKNOWN<<
1785 2006 679 125 >>UNKNOWN<<
20115 1675 1645 628 Charter Communications
4323 1620 1119 407 >>UNKNOWN<<
701 1511 11118 791 >>UNKNOWN<<
30036 1334 299 639 >>UNKNOWN<<
7018 1318 11309 836 >>UNKNOWN<<
11492 1223 218 361 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1589 544 16 >>UNKNOWN<<
2118 1375 97 13 >>UNKNOWN<<
34984 1307 244 222 >>UNKNOWN<<
31148 979 43 18 >>UNKNOWN<<
20940 975 353 750 >>UNKNOWN<<
6830 893 2367 429 >>UNKNOWN<<
13188 846 99 72 >>UNKNOWN<<
8551 794 370 41 Bezeqint Internet Backbone
12479 687 797 53 >>UNKNOWN<<
9116 553 326 34 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
28573 3209 1695 101 >>UNKNOWN<<
10620 2654 423 222 >>UNKNOWN<<
7303 1733 1158 223 >>UNKNOWN<<
18881 1456 844 20 >>UNKNOWN<<
8151 1267 2766 386 >>UNKNOWN<<
11830 945 364 15 >>UNKNOWN<<
27947 811 95 92 Telconet S.A
6503 784 434 65 Axtel, S.A.B. de C.V.
6147 734 374 25 >>UNKNOWN<<
3816 725 303 85 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36998 1861 112 5 MOBITEL
24863 878 274 30 >>UNKNOWN<<
6713 543 633 26 Itissalat Al-MAGHRIB
8452 433 956 9 >>UNKNOWN<<
24835 291 80 8 >>UNKNOWN<<
3741 258 921 217 >>UNKNOWN<<
15706 221 32 6 >>UNKNOWN<<
29571 220 17 12 >>UNKNOWN<<
36992 220 501 28 >>UNKNOWN<<
12258 193 28 71 MWEB-12258
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
28573 3209 1695 101 >>UNKNOWN<<
6389 2976 3689 62 BellSouth.net Inc.
17974 2668 903 91 >>UNKNOWN<<
10620 2654 423 222 >>UNKNOWN<<
4766 2117 11553 622 Korea Telecom
18566 2063 382 183 Covad Communications Co.
7545 2055 321 112 TPG Telecom Limited
22773 2044 2933 125 >>UNKNOWN<<
1785 2006 679 125 >>UNKNOWN<<
36998 1861 112 5 MOBITEL
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 2976 2914 BellSouth.net Inc.
17974 2668 2577 >>UNKNOWN<<
10620 2654 2432 >>UNKNOWN<<
7545 2055 1943 TPG Telecom Limited
22773 2044 1919 >>UNKNOWN<<
1785 2006 1881 >>UNKNOWN<<
18566 2063 1880 Covad Communications Co.
36998 1861 1856 MOBITEL
4755 1793 1601 TATA Communications formerly
8402 1589 1573 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
55633 UNALLOCATED 1.209.184.0/24 4766 Korea Telecom
9684 UNALLOCATED 1.209.204.0/24 4766 Korea Telecom
38132 UNALLOCATED 1.214.16.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.17.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.18.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.19.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.20.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.21.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.22.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.23.0/24 9318 Hanaro Telecom Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
100.64.0.0/10 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.0.0/24 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
198.51.100.0/24 65333 Internet Assigned Numbers Aut
203.0.113.0/24 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
23.90.128.0/18 27418 >>UNKNOWN<<
23.91.0.0/19 40676 >>UNKNOWN<<
23.91.32.0/19 36315 >>UNKNOWN<<
23.92.16.0/21 8001 >>UNKNOWN<<
23.92.24.0/22 6939 Hurricane Electric, Inc.
23.92.48.0/20 62471 >>UNKNOWN<<
23.92.64.0/24 54540 >>UNKNOWN<<
23.92.65.0/24 54540 >>UNKNOWN<<
23.92.66.0/24 54540 >>UNKNOWN<<
23.92.67.0/24 54540 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/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 /8:17 /9:11 /10:31 /11:93 /12:251
/13:478 /14:903 /15:1617 /16:12727 /17:6668 /18:11029
/19:22659 /20:32351 /21:34849 /22:48617 /23:42514 /24:244727
/25:8 /26:11 /27:10 /28:131 /29:202 /30:123
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2014 2063 Covad Communications Co.
36998 1826 1861 MOBITEL
6389 1711 2976 BellSouth.net Inc.
22773 1332 2044 >>UNKNOWN<<
8402 1319 1589 >>UNKNOWN<<
30036 1197 1334 >>UNKNOWN<<
11492 1184 1223 >>UNKNOWN<<
1785 1079 2006 >>UNKNOWN<<
6983 1023 1150 ITC^Deltacom
10620 978 2654 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:801 2:810 3:3 4:16 5:915 6:18
8:592 12:1896 14:846 15:11 16:3 17:11
18:19 20:18 23:361 24:1736 27:1551 31:1418
32:40 33:2 34:5 36:72 37:1836 38:893
39:4 40:179 41:3315 42:241 44:9 46:1944
47:5 49:664 50:808 52:12 54:37 55:4
57:29 58:1088 59:648 60:332 61:1488 62:1182
63:1987 64:4557 65:2243 66:4192 67:2074 68:1092
69:3285 70:862 71:493 72:2006 74:2533 75:322
76:304 77:1127 78:1047 79:628 80:1317 81:1024
82:652 83:586 84:577 85:1236 86:479 87:1052
88:538 89:1830 90:158 91:5589 92:635 93:1665
94:2019 95:1543 96:523 97:347 98:1038 99:41
100:28 101:347 103:3181 105:519 106:139 107:210
108:476 109:1868 110:940 111:1102 112:568 113:760
114:675 115:1064 116:960 117:782 118:1124 119:1273
120:353 121:849 122:1789 123:1240 124:1340 125:1415
128:580 129:203 130:299 131:663 132:343 133:160
134:269 135:67 136:274 137:264 138:347 139:174
140:173 141:308 142:533 143:386 144:490 145:94
146:526 147:474 148:665 149:354 150:149 151:560
152:414 153:194 154:30 155:482 156:271 157:358
158:282 159:662 160:352 161:429 162:616 163:203
164:623 165:552 166:255 167:604 168:1021 169:125
170:1079 171:191 172:25 173:1584 174:516 175:482
176:1173 177:2137 178:1910 179:104 180:1518 181:677
182:1232 183:441 184:660 185:787 186:2454 187:1382
188:1885 189:1288 190:6973 192:6871 193:5845 194:4709
195:3600 196:1346 197:1014 198:4571 199:5395 200:5995
201:2583 202:8721 203:8784 204:4460 205:2585 206:2747
207:2837 208:3992 209:3612 210:2823 211:1550 212:2302
213:2046 214:922 215:101 216:5283 217:1654 218:612
219:327 220:1274 221:553 222:322 223:500
End of report