Routing Table Report 00:00 GMT Wed 17 Aug, 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: 371417
Prefixes after maximum aggregation: 167453
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 182481
Total ASes present in the Internet Routing Table: 38502
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31962
Origin ASes announcing only one prefix: 15375
Transit ASes present in the Internet Routing Table: 5220
Transit-only ASes present in the Internet Routing Table: 150
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4164
Unregistered ASNs in the Routing Table: 633
Number of 32-bit ASNs allocated by the RIRs: 1647
Number of 32-bit ASNs visible in the Routing Table: 1320
Prefixes from 32-bit ASNs in the Routing Table: 3025
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 111
Number of addresses announced to Internet: 2494841863
Equivalent to 148 /8s, 180 /16s and 68 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
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: 154078
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90104
Total APNIC prefixes after maximum aggregation: 29327
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 86716
Unique aggregates announced from the APNIC address blocks: 37698
APNIC Region origin ASes present in the Internet Routing Table: 4509
APNIC Prefixes per ASN: 19.23
APNIC Region origin ASes announcing only one prefix: 1254
APNIC Region transit ASes present in the Internet Routing Table: 714
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 68
Number of APNIC addresses announced to Internet: 624180992
Equivalent to 37 /8s, 52 /16s and 63 /24s
Percentage of available APNIC address space announced: 79.2
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: 145663
Total ARIN prefixes after maximum aggregation: 75283
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 117120
Unique aggregates announced from the ARIN address blocks: 47029
ARIN Region origin ASes present in the Internet Routing Table: 14598
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5606
ARIN Region transit ASes present in the Internet Routing Table: 1517
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803660824
Equivalent to 47 /8s, 230 /16s and 228 /24s
Percentage of available ARIN address space announced: 63.9
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: 89632
Total RIPE prefixes after maximum aggregation: 49821
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82055
Unique aggregates announced from the RIPE address blocks: 53425
RIPE Region origin ASes present in the Internet Routing Table: 15901
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7917
RIPE Region transit ASes present in the Internet Routing Table: 2520
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 956
Number of RIPE addresses announced to Internet: 487993804
Equivalent to 29 /8s, 22 /16s and 49 /24s
Percentage of available RIPE address space announced: 78.6
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: 34395
Total LACNIC prefixes after maximum aggregation: 7608
LACNIC Deaggregation factor: 4.52
Prefixes being announced from the LACNIC address blocks: 33530
Unique aggregates announced from the LACNIC address blocks: 17257
LACNIC Region origin ASes present in the Internet Routing Table: 1492
LACNIC Prefixes per ASN: 22.47
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 272
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 280
Number of LACNIC addresses announced to Internet: 87475968
Equivalent to 5 /8s, 54 /16s and 199 /24s
Percentage of available LACNIC address space announced: 57.9
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: 8385
Total AfriNIC prefixes after maximum aggregation: 2041
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 6522
Unique aggregates announced from the AfriNIC address blocks: 2085
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.50
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26916864
Equivalent to 1 /8s, 154 /16s and 184 /24s
Percentage of available AfriNIC address space announced: 40.1
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
4766 1938 11054 647 Korea Telecom (KIX)
17974 1909 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1574 301 84 TPG Internet Pty Ltd
4755 1532 379 169 Videsh Sanchar Nigam Ltd. Aut
7552 1412 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd.
9829 1125 963 42 BSNL National Internet Backbo
9583 1071 78 493 Sify Limited
4808 1035 2085 295 CNCGROUP IP network: China169
17488 1016 188 132 Hathway IP Over Cable Interne
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 3585 3817 228 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1820 681 123 AppliedTheory Corporation
4323 1617 1102 401 Time Warner Telecom
7029 1610 1029 208 Windstream Communications Inc
20115 1581 1537 625 Charter Communications
22773 1433 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1367 7085 896 AT&T WorldNet Services
2386 1248 517 898 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 1035 797 192 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 538 107 183 Tellcom Iletisim Hizmetleri
3292 521 2080 405 TDC Tele Danmark
6830 513 1788 317 UPC Distribution Services
20940 474 136 367 Akamai Technologies European
8866 458 133 26 Bulgarian Telecommunication C
12479 455 593 7 Uni2 Autonomous System
3320 424 8151 370 Deutsche Telekom AG
29049 416 31 57 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 1584 293 163 TVCABLE BOGOTA
8151 1439 2745 355 Uninet S.A. de C.V.
28573 1256 996 67 Types of queries are: POCs, o
7303 1067 578 175 Telecom Argentina Stet-France
6503 751 450 77 AVANTEL, S.A.
14420 705 56 85 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 533 232 97 COLOMBIA TELECOMUNICACIONES S
27947 518 54 48 Telconet S.A
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 798 145 57 LINKdotNET AS number
8452 635 445 11 TEDATA
15475 511 74 8 Nile Online
36992 307 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 263 519 14 Itissalat Al-MAGHRIB
15706 253 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 194 28 65 YEBO-AS
24835 179 78 10 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 3585 3817 228 bellsouth.net, inc.
23456 3025 726 1643 >>UNKNOWN<<
4766 1938 11054 647 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
17974 1909 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1820 681 123 AppliedTheory Corporation
4323 1617 1102 401 Time Warner Telecom
7029 1610 1029 208 Windstream Communications Inc
10620 1584 293 163 TVCABLE BOGOTA
20115 1581 1537 625 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 1909 1878 PT TELEKOMUNIKASI INDONESIA
1785 1820 1697 AppliedTheory Corporation
18566 1913 1673 Covad Communications
7545 1574 1490 TPG Internet Pty Ltd
10620 1584 1421 TVCABLE BOGOTA
7552 1412 1405 Vietel Corporation
7029 1610 1402 Windstream Communications Inc
23456 3025 1382 >>UNKNOWN<<
4755 1532 1363 Videsh Sanchar Nigam Ltd. Aut
22773 1433 1336 Cox Communications, Inc.
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<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 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 /8:21 /9:12 /10:27 /11:81 /12:233
/13:466 /14:805 /15:1445 /16:12176 /17:6178 /18:10212
/19:20068 /20:27648 /21:27014 /22:35785 /23:34743 /24:192767
/25:81 /26:86 /27:111 /28:282 /29:70 /30:528
/31:91 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2216 3585 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1479 1584 TVCABLE BOGOTA
23456 1474 3025 >>UNKNOWN<<
7029 1295 1610 Windstream Communications Inc
11492 1100 1146 Cable One
7011 1057 1160 Citizens Utilities
1785 1053 1820 AppliedTheory Corporation
22773 929 1433 Cox Communications, Inc.
30036 903 925 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:351 2:44 4:19 5:1 6:3 8:341
12:1964 13:1 14:518 15:15 16:3 17:5
20:10 23:18 24:1689 27:870 31:525 32:149
33:4 34:2 36:4 38:735 40:107 41:2548
42:45 44:3 46:1076 47:3 49:219 50:398
52:13 54:2 55:6 56:2 57:45 58:862
59:499 60:375 61:1187 62:1106 63:1952 64:4051
65:2303 66:3965 67:1942 68:1283 69:3196 70:825
71:373 72:1875 73:1 74:2483 75:341 76:349
77:866 78:706 79:488 80:1127 81:835 82:502
83:471 84:694 85:1081 86:534 87:843 88:341
89:1553 90:224 91:4045 92:527 93:1145 94:1352
95:876 96:422 97:266 98:936 99:37 101:79
103:193 106:69 107:31 108:80 109:1016 110:638
111:732 112:307 113:411 114:562 115:694 116:1008
117:681 118:872 119:1184 120:313 121:706 122:1585
123:980 124:1312 125:1343 128:247 129:177 130:171
131:580 132:116 133:21 134:214 135:51 136:216
137:139 138:296 139:129 140:488 141:275 142:385
143:421 144:487 145:58 146:461 147:227 148:698
149:254 150:163 151:190 152:439 153:184 154:5
155:401 156:199 157:331 158:133 159:455 160:318
161:207 162:328 163:164 164:515 165:397 166:536
167:436 168:746 169:154 170:845 171:81 172:1
173:1659 174:625 175:391 176:148 177:210 178:1004
180:937 181:26 182:526 183:242 184:369 185:1
186:1336 187:723 188:914 189:907 190:5089 192:5944
193:4991 194:3550 195:3120 196:1220 197:124 198:3598
199:4046 200:5513 201:1481 202:8427 203:8475 204:4256
205:2338 206:2735 207:2807 208:4126 209:3499 210:2702
211:1465 212:2126 213:1773 214:779 215:70 216:4924
217:1614 218:557 219:354 220:1224 221:515 222:359
223:236
End of report
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