Routing Table Report 00:00 GMT Wed 07 Sep, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 374580
Prefixes after maximum aggregation: 168466
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178816
Total ASes present in the Internet Routing Table: 38713
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 32158
Origin ASes announcing only one prefix: 15431
Transit ASes present in the Internet Routing Table: 5173
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 37
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 4413
Unregistered ASNs in the Routing Table: 688
Number of 32-bit ASNs allocated by the RIRs: 1704
Number of 32-bit ASNs visible in the Routing Table: 1382
Prefixes from 32-bit ASNs in the Routing Table: 3207
Special use prefixes present in the Routing Table: 80
Prefixes being announced from unallocated address space: 102
Number of addresses announced to Internet: 2304935952
Equivalent to 137 /8s, 98 /16s and 136 /24s
Percentage of available address space announced: 62.2
Percentage of allocated address space announced: 62.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 155424
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91167
Total APNIC prefixes after maximum aggregation: 29451
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 87790
Unique aggregates announced from the APNIC address blocks: 36739
APNIC Region origin ASes present in the Internet Routing Table: 4537
APNIC Prefixes per ASN: 19.35
APNIC Region origin ASes announcing only one prefix: 1259
APNIC Region transit ASes present in the Internet Routing Table: 702
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 78
Number of APNIC addresses announced to Internet: 609880064
Equivalent to 36 /8s, 90 /16s and 8 /24s
Percentage of available APNIC address space announced: 77.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 146420
Total ARIN prefixes after maximum aggregation: 75557
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 117992
Unique aggregates announced from the ARIN address blocks: 44820
ARIN Region origin ASes present in the Internet Routing Table: 14660
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5630
ARIN Region transit ASes present in the Internet Routing Table: 1525
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 37
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 666859032
Equivalent to 39 /8s, 191 /16s and 118 /24s
Percentage of available ARIN address space announced: 53.0
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, 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, 173/8,
174/8, 184/8, 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: 90135
Total RIPE prefixes after maximum aggregation: 50094
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82408
Unique aggregates announced from the RIPE address blocks: 52600
RIPE Region origin ASes present in the Internet Routing Table: 15951
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 7938
RIPE Region transit ASes present in the Internet Routing Table: 2491
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 984
Number of RIPE addresses announced to Internet: 473624012
Equivalent to 28 /8s, 58 /16s and 237 /24s
Percentage of available RIPE address space announced: 76.3
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 35071
Total LACNIC prefixes after maximum aggregation: 7781
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 34257
Unique aggregates announced from the LACNIC address blocks: 17635
LACNIC Region origin ASes present in the Internet Routing Table: 1517
LACNIC Prefixes per ASN: 22.58
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 272
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 304
Number of LACNIC addresses announced to Internet: 88141576
Equivalent to 5 /8s, 64 /16s and 239 /24s
Percentage of available LACNIC address space announced: 58.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8400
Total AfriNIC prefixes after maximum aggregation: 2071
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 6502
Unique aggregates announced from the AfriNIC address blocks: 2017
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.46
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26809856
Equivalent to 1 /8s, 153 /16s and 22 /24s
Percentage of available AfriNIC address space announced: 39.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
17974 1975 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1942 11038 647 Korea Telecom (KIX)
7545 1574 301 82 TPG Internet Pty Ltd
4755 1543 375 167 Videsh Sanchar Nigam Ltd. Aut
24560 1177 336 193 Bharti Airtel Ltd.
9829 1152 989 28 BSNL National Internet Backbo
9583 1073 79 503 Sify Limited
17488 1031 191 162 Hathway IP Over Cable Interne
7552 985 1062 11 Vietel Corporation
18101 949 118 138 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3562 3817 227 bellsouth.net, inc.
18566 1911 364 236 Covad Communications
1785 1824 680 123 AppliedTheory Corporation
7029 1627 1021 244 Windstream Communications Inc
4323 1625 1101 397 Time Warner Telecom
20115 1588 1541 634 Charter Communications
22773 1452 2907 99 Cox Communications, Inc.
19262 1393 4724 399 Verizon Global Networks
7018 1352 7052 885 AT&T WorldNet Services
2386 1225 515 881 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
286 1052 800 195 KPNQwest Backbone AS
34984 543 107 178 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
6830 525 1811 322 UPC Distribution Services
3292 521 2079 404 TDC Tele Danmark
20940 497 153 388 Akamai Technologies European
12479 467 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
3320 429 8152 373 Deutsche Telekom AG
29049 423 31 55 AzerSat LLC.
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1643 301 156 TVCABLE BOGOTA
8151 1441 2763 353 Uninet S.A. de C.V.
28573 1290 1003 71 Types of queries are: POCs, o
7303 1059 578 171 Telecom Argentina Stet-France
14420 715 57 88 Types of queries are: POCs, o
6503 599 450 70 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
27947 576 56 78 Telconet S.A
10481 548 430 20 Prima S.A.
3816 536 232 98 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 811 147 43 LINKdotNET AS number
8452 647 445 11 TEDATA
15475 512 74 8 Nile Online
36992 303 415 14 Etisalat MISR
3741 266 937 227 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 207 13 14 Starcomms Nigeria Limited
12258 194 28 63 YEBO-AS
24835 181 70 12 RAYA Telecom - Egypt
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3562 3817 227 bellsouth.net, inc.
23456 3207 759 1713 >>UNKNOWN<<
17974 1975 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1942 11038 647 Korea Telecom (KIX)
18566 1911 364 236 Covad Communications
1785 1824 680 123 AppliedTheory Corporation
10620 1643 301 156 TVCABLE BOGOTA
7029 1627 1021 244 Windstream Communications Inc
4323 1625 1101 397 Time Warner Telecom
20115 1588 1541 634 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1975 1944 PT TELEKOMUNIKASI INDONESIA
1785 1824 1701 AppliedTheory Corporation
18566 1911 1675 Covad Communications
23456 3207 1494 >>UNKNOWN<<
7545 1574 1492 TPG Internet Pty Ltd
10620 1643 1487 TVCABLE BOGOTA
7029 1627 1383 Windstream Communications Inc
4755 1543 1376 Videsh Sanchar Nigam Ltd. Aut
22773 1452 1353 Cox Communications, Inc.
4766 1942 1295 Korea Telecom (KIX)
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:27 /11:81 /12:233
/13:461 /14:806 /15:1444 /16:12077 /17:6202 /18:10273
/19:20198 /20:27803 /21:27329 /22:36260 /23:35138 /24:194458
/25:78 /26:87 /27:116 /28:288 /29:107 /30:515
/31:72 /32:495
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2198 3562 bellsouth.net, inc.
18566 1868 1911 Covad Communications
23456 1561 3207 >>UNKNOWN<<
10620 1538 1643 TVCABLE BOGOTA
7029 1308 1627 Windstream Communications Inc
11492 1108 1154 Cable One
7011 1058 1183 Citizens Utilities
1785 1053 1824 AppliedTheory Corporation
22773 941 1452 Cox Communications, Inc.
30036 920 948 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:365 2:51 4:19 5:1 6:3 8:349
12:1953 13:1 14:533 15:13 16:3 17:5
20:10 23:31 24:1682 27:930 31:526 32:149
33:3 34:2 36:4 38:739 40:107 41:2495
42:40 44:3 46:1093 47:3 49:233 50:408
52:13 54:2 55:3 56:2 57:45 58:874
59:494 60:376 61:1174 62:1093 63:1963 64:4077
65:2302 66:3975 67:1973 68:1290 69:3271 70:827
71:375 72:1887 73:1 74:2481 75:340 76:347
77:871 78:705 79:468 80:1126 81:844 82:507
83:498 84:699 85:1094 86:505 87:865 88:346
89:1557 90:231 91:4074 92:523 93:1146 94:1360
95:876 96:426 97:271 98:940 99:37 101:203
103:267 106:79 107:43 108:82 109:1030 110:669
111:748 112:312 113:434 114:566 115:702 116:975
117:682 118:887 119:1199 120:331 121:704 122:1607
123:1010 124:1348 125:1356 128:249 129:181 130:166
131:582 132:119 133:21 134:215 135:53 136:212
137:136 138:295 139:129 140:491 141:286 142:392
143:426 144:489 145:61 146:467 147:242 148:686
149:250 150:153 151:190 152:443 153:179 154:6
155:396 156:201 157:355 158:141 159:458 160:319
161:206 162:337 163:175 164:513 165:396 166:539
167:435 168:747 169:147 170:852 171:84 172:1
173:1674 174:635 175:397 176:157 177:251 178:1024
180:1020 181:27 182:612 183:229 184:351 185:1
186:1411 187:684 188:940 189:875 190:5142 192:5961
193:5004 194:3550 195:3076 196:1241 197:148 198:3599
199:4105 200:5516 201:1641 202:8542 203:8503 204:4256
205:2356 206:2738 207:2847 208:4146 209:3521 210:2714
211:1471 212:2137 213:1771 214:773 215:76 216:4921
217:1625 218:553 219:346 220:1198 221:516 222:353
223:261
End of report
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