Routing Table Report 00:00 GMT Fri 06 Apr, 2012
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: 407759
Prefixes after maximum aggregation: 173244
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 196151
Total ASes present in the Internet Routing Table: 40653
Prefixes per ASN: 10.03
Origin-only ASes present in the Internet Routing Table: 32982
Origin ASes announcing only one prefix: 15499
Transit ASes present in the Internet Routing Table: 5475
Transit-only ASes present in the Internet Routing Table: 145
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 6091
Unregistered ASNs in the Routing Table: 319
Number of 32-bit ASNs allocated by the RIRs: 2347
Number of 32-bit ASNs visible in the Routing Table: 2196
Prefixes from 32-bit ASNs in the Routing Table: 5390
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 1399
Number of addresses announced to Internet: 2534384213
Equivalent to 151 /8s, 15 /16s and 162 /24s
Percentage of available address space announced: 68.4
Percentage of allocated address space announced: 68.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 171840
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96919
Total APNIC prefixes after maximum aggregation: 31078
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 93396
Unique aggregates announced from the APNIC address blocks: 39256
APNIC Region origin ASes present in the Internet Routing Table: 4660
APNIC Prefixes per ASN: 20.04
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 745
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 171
Number of APNIC addresses announced to Internet: 642881536
Equivalent to 38 /8s, 81 /16s and 152 /24s
Percentage of available APNIC address space announced: 81.5
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: 152186
Total ARIN prefixes after maximum aggregation: 78057
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123312
Unique aggregates announced from the ARIN address blocks: 49994
ARIN Region origin ASes present in the Internet Routing Table: 14976
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5691
ARIN Region transit ASes present in the Internet Routing Table: 1562
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 805863168
Equivalent to 48 /8s, 8 /16s and 127 /24s
Percentage of available ARIN address space announced: 64.0
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: 102944
Total RIPE prefixes after maximum aggregation: 53497
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 93296
Unique aggregates announced from the RIPE address blocks: 57192
RIPE Region origin ASes present in the Internet Routing Table: 16372
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 7957
RIPE Region transit ASes present in the Internet Routing Table: 2650
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1487
Number of RIPE addresses announced to Internet: 502376844
Equivalent to 29 /8s, 241 /16s and 169 /24s
Percentage of available RIPE address space announced: 80.9
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: 40966
Total LACNIC prefixes after maximum aggregation: 8214
LACNIC Deaggregation factor: 4.99
Prefixes being announced from the LACNIC address blocks: 40468
Unique aggregates announced from the LACNIC address blocks: 19730
LACNIC Region origin ASes present in the Internet Routing Table: 1570
LACNIC Prefixes per ASN: 25.78
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 298
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 516
Number of LACNIC addresses announced to Internet: 98759944
Equivalent to 5 /8s, 226 /16s and 245 /24s
Percentage of available LACNIC address space announced: 65.4
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: 8859
Total AfriNIC prefixes after maximum aggregation: 2119
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6905
Unique aggregates announced from the AfriNIC address blocks: 2159
AfriNIC Region origin ASes present in the Internet Routing Table: 524
AfriNIC Prefixes per ASN: 13.18
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 117
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31467008
Equivalent to 1 /8s, 224 /16s and 38 /24s
Percentage of available AfriNIC address space announced: 46.9
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
4766 1909 11102 681 Korea Telecom (KIX)
17974 1770 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1652 301 86 TPG Internet Pty Ltd
4755 1575 386 157 Videsh Sanchar Nigam Ltd. Aut
9583 1242 96 543 Sify Limited
9829 1235 1041 30 BSNL National Internet Backbo
7552 1167 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd.
18101 948 131 159 Reliance Infocom Ltd Internet
9498 934 260 64 BHARTI Airtel Ltd.
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 3432 3807 196 bellsouth.net, inc.
7029 3379 990 156 Windstream Communications Inc
18566 2092 383 179 Covad Communications
1785 1889 680 128 AppliedTheory Corporation
20115 1635 1560 618 Charter Communications
4323 1583 1074 375 Time Warner Telecom
22773 1568 2910 111 Cox Communications, Inc.
30036 1457 264 742 Mediacom Communications Corp
7018 1279 13742 830 AT&T WorldNet Services
11492 1185 216 365 Cable One
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
8402 1787 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
286 1065 853 198 KPNQwest Backbone AS
31148 679 37 9 FreeNet ISP
34984 675 188 172 Tellcom Iletisim Hizmetleri
12479 656 658 57 Uni2 Autonomous System
6830 642 1943 413 UPC Distribution Services
20940 637 205 498 Akamai Technologies European
8551 599 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
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 1795 327 163 TVCABLE BOGOTA
28573 1772 1105 61 Types of queries are: POCs, o
6503 1541 418 65 AVANTEL, S.A.
8151 1513 2979 333 Uninet S.A. de C.V.
7303 1353 827 189 Telecom Argentina Stet-France
26615 904 701 29 Types of queries are: POCs, o
27947 688 74 101 Telconet S.A
11172 637 107 74 Alestra
22047 584 326 15 Types of queries are: POCs, o
3816 572 242 101 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
8452 1301 958 13 TEDATA
24863 849 274 35 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 266 921 224 The Internet Solution
33776 198 12 21 Starcomms Nigeria Limited
12258 197 28 62 YEBO-AS
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 161 666 85 Johnnic e-Ventures
29571 161 15 16 Ci Telecom Autonomous system
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 3432 3807 196 bellsouth.net, inc.
7029 3379 990 156 Windstream Communications Inc
18566 2092 383 179 Covad Communications
4766 1909 11102 681 Korea Telecom (KIX)
1785 1889 680 128 AppliedTheory Corporation
10620 1795 327 163 TVCABLE BOGOTA
8402 1787 544 16 Corbina telecom
28573 1772 1105 61 Types of queries are: POCs, o
17974 1770 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1652 301 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3379 3223 Windstream Communications Inc
18566 2092 1913 Covad Communications
8402 1787 1771 Corbina telecom
1785 1889 1761 AppliedTheory Corporation
28573 1772 1711 Types of queries are: POCs, o
17974 1770 1707 PT TELEKOMUNIKASI INDONESIA
10620 1795 1632 TVCABLE BOGOTA
7545 1652 1566 TPG Internet Pty Ltd
6503 1541 1476 AVANTEL, S.A.
22773 1568 1457 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
23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54439 UNALLOCATED 8.25.174.0/24 17378 DBS International
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
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
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
17300 UNALLOCATED 12.45.103.0/24 209 Qwest
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 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
10.29.245.27/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
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 /10:28 /11:81 /12:235
/13:459 /14:838 /15:1515 /16:12333 /17:6537 /18:10881
/19:21150 /20:29976 /21:30195 /22:40799 /23:38026 /24:213075
/25:68 /26:76 /27:105 /28:270 /29:99 /30:499
/31:20 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3038 3379 Windstream Communications Inc
6389 2149 3432 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1764 1787 Corbina telecom
10620 1690 1795 TVCABLE BOGOTA
30036 1398 1457 Mediacom Communications Corp
6503 1299 1541 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1110 1301 TEDATA
1785 1064 1889 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:538 2:755 4:18 6:3 8:396 12:2001
13:1 14:609 15:12 16:3 17:7 20:8
23:161 24:1775 27:1263 31:991 32:120 33:2
34:2 36:8 37:322 38:788 39:4 40:120
41:3083 42:130 44:3 46:1478 47:3 49:355
50:537 52:13 54:7 55:8 56:3 57:39
58:964 59:494 60:280 61:1213 62:981 63:2013
64:4190 65:2263 66:4525 67:2060 68:1335 69:3289
70:954 71:466 72:1864 73:1 74:2653 75:505
76:325 77:969 78:1008 79:507 80:1213 81:906
82:674 83:548 84:496 85:1198 86:411 87:913
88:348 89:1640 90:297 91:4693 92:521 93:1401
94:1483 95:1135 96:381 97:318 98:878 99:37
100:6 101:171 103:944 106:74 107:180 108:228
109:1273 110:765 111:907 112:447 113:591 114:632
115:794 116:917 117:721 118:916 119:1211 120:344
121:719 122:1669 123:1108 124:1370 125:1256 128:559
129:195 130:259 131:595 132:173 133:21 134:245
135:63 136:213 137:177 138:353 139:157 140:493
141:244 142:387 143:399 144:513 145:66 146:483
147:251 148:800 149:299 150:155 151:177 152:462
153:172 154:7 155:446 156:216 157:381 158:175
159:524 160:342 161:254 162:347 163:189 164:572
165:407 166:562 167:464 168:820 169:148 170:845
171:126 172:4 173:1752 174:576 175:442 176:461
177:645 178:1317 180:1213 181:73 182:790 183:284
184:453 185:1 186:2174 187:1028 188:1183 189:1792
190:5446 192:6022 193:5629 194:4643 195:3642 196:1295
197:125 198:3645 199:4498 200:5796 201:1906 202:8477
203:8587 204:4353 205:2475 206:2775 207:2823 208:4086
209:3609 210:2770 211:1487 212:2045 213:1911 214:885
215:109 216:5095 217:1527 218:545 219:337 220:1234
221:555 222:329 223:331
End of report
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