The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Friday, November 8, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Sat 09 Nov, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 467212
Prefixes after maximum aggregation: 187878
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 233725
Total ASes present in the Internet Routing Table: 45288
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35414
Origin ASes announcing only one prefix: 16290
Transit ASes present in the Internet Routing Table: 5752
Transit-only ASes present in the Internet Routing Table: 145
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 30
Max AS path prepend of ASN ( 59482) 25
Prefixes from unregistered ASNs in the Routing Table: 813
Unregistered ASNs in the Routing Table: 212
Number of 32-bit ASNs allocated by the RIRs: 5316
Number of 32-bit ASNs visible in the Routing Table: 4122
Prefixes from 32-bit ASNs in the Routing Table: 12841
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 989
Number of addresses announced to Internet: 2654467388
Equivalent to 158 /8s, 55 /16s and 245 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.1
Total number of prefixes smaller than registry allocations: 162259

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 109439
Total APNIC prefixes after maximum aggregation: 33285
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 111605
Unique aggregates announced from the APNIC address blocks: 47285
APNIC Region origin ASes present in the Internet Routing Table: 4845
APNIC Prefixes per ASN: 23.04
APNIC Region origin ASes announcing only one prefix: 1230
APNIC Region transit ASes present in the Internet Routing Table: 813
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 730
Number of APNIC addresses announced to Internet: 729999932
Equivalent to 43 /8s, 130 /16s and 234 /24s
Percentage of available APNIC address space announced: 85.3

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 161774
Total ARIN prefixes after maximum aggregation: 81233
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162667
Unique aggregates announced from the ARIN address blocks: 75932
ARIN Region origin ASes present in the Internet Routing Table: 15885
ARIN Prefixes per ASN: 10.24
ARIN Region origin ASes announcing only one prefix: 6011
ARIN Region transit ASes present in the Internet Routing Table: 1621
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 34
Number of ARIN addresses announced to Internet: 1073549312
Equivalent to 63 /8s, 253 /16s and 16 /24s
Percentage of available ARIN address space announced: 56.8

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: 118687
Total RIPE prefixes after maximum aggregation: 60846
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122390
Unique aggregates announced from the RIPE address blocks: 78729
RIPE Region origin ASes present in the Internet Routing Table: 17490
RIPE Prefixes per ASN: 7.00
RIPE Region origin ASes announcing only one prefix: 8299
RIPE Region transit ASes present in the Internet Routing Table: 2747
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2466
Number of RIPE addresses announced to Internet: 656645120
Equivalent to 39 /8s, 35 /16s and 156 /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, 61952-62463, 196608-200191
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: 52030
Total LACNIC prefixes after maximum aggregation: 9772
LACNIC Deaggregation factor: 5.32
Prefixes being announced from the LACNIC address blocks: 57146
Unique aggregates announced from the LACNIC address blocks: 26903
LACNIC Region origin ASes present in the Internet Routing Table: 2027
LACNIC Prefixes per ASN: 28.19
LACNIC Region origin ASes announcing only one prefix: 552
LACNIC Region transit ASes present in the Internet Routing Table: 379
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 886
Number of LACNIC addresses announced to Internet: 142587648
Equivalent to 8 /8s, 127 /16s and 183 /24s
Percentage of available LACNIC address space announced: 85.0

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: 11766
Total AfriNIC prefixes after maximum aggregation: 2602
AfriNIC Deaggregation factor: 4.52
Prefixes being announced from the AfriNIC address blocks: 12415
Unique aggregates announced from the AfriNIC address blocks: 4076
AfriNIC Region origin ASes present in the Internet Routing Table: 678
AfriNIC Prefixes per ASN: 18.31
AfriNIC Region origin ASes announcing only one prefix: 198
AfriNIC Region transit ASes present in the Internet Routing Table: 128
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 48103424
Equivalent to 2 /8s, 222 /16s and 0 /24s
Percentage of available AfriNIC address space announced: 47.8

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 2710 903 89 PT TELEKOMUNIKASI INDONESIA
4766 2138 11550 641 Korea Telecom (KIX)
7545 2113 319 111 TPG Internet Pty Ltd
4755 1788 391 188 TATA Communications formerly
9829 1543 1240 41 BSNL National Internet Backbo
9498 1210 309 73 BHARTI Airtel Ltd.
9583 1190 91 513 Sify Limited
7552 1155 1080 13 Vietel Corporation
24560 1094 380 163 Bharti Airtel Ltd., Telemedia
4808 1046 1950 303 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3054 3688 56 BellSouth.net Inc.
22773 2195 2939 139 Cox Communications, Inc.
18566 2056 379 178 MegaPath Corporation
1785 2038 684 131 PaeTec Communications, Inc.
20115 1682 1653 607 Charter Communications
4323 1640 1118 422 Time Warner Telecom
701 1501 11145 779 MCI Communications Services,
30036 1385 313 576 Mediacom Communications Corp
7018 1338 17779 871 AT&T WorldNet Services
6983 1293 755 578 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1921 544 17 OJSC "Vimpelcom"
34984 1362 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1127 412 854 Akamai Technologies European
31148 1005 44 18 FreeNet ISP
13188 886 99 48 TOV "Bank-Inform"
6849 862 356 30 JSC UKRTELECOM,
8551 783 370 41 Bezeq International
6830 774 2328 426 UPC Distribution Services
12479 677 798 55 Uni2 Autonomous System
35228 542 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3432 1788 85 NET Servicos de Comunicao S.A
10620 2648 429 233 TVCABLE BOGOTA
7303 1727 1146 232 Telecom Argentina Stet-France
18881 1545 908 20 Global Village Telecom
8151 1347 2851 409 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 820 94 92 Telconet S.A
6503 787 434 63 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A
3816 750 301 123 Empresa Nacional de Telecomun

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1864 112 5 Sudanese Mobile Telephone (ZA
24863 892 338 30 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 413 956 9 TEDATA
24835 295 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
36992 229 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 221 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3432 1788 85 NET Servicos de Comunicao S.A
6389 3054 3688 56 BellSouth.net Inc.
17974 2710 903 89 PT TELEKOMUNIKASI INDONESIA
10620 2648 429 233 TVCABLE BOGOTA
22773 2195 2939 139 Cox Communications, Inc.
4766 2138 11550 641 Korea Telecom (KIX)
7545 2113 319 111 TPG Internet Pty Ltd
18566 2056 379 178 MegaPath Corporation
1785 2038 684 131 PaeTec Communications, Inc.
8402 1921 544 17 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3054 2998 BellSouth.net Inc.
17974 2710 2621 PT TELEKOMUNIKASI INDONESIA
10620 2648 2415 TVCABLE BOGOTA
22773 2195 2056 Cox Communications, Inc.
7545 2113 2002 TPG Internet Pty Ltd
1785 2038 1907 PaeTec Communications, Inc.
8402 1921 1904 OJSC "Vimpelcom"
18566 2056 1878 MegaPath Corporation
36998 1864 1859 Sudanese Mobile Telephone (ZA
4755 1788 1600 TATA Communications formerly

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio
62734 UNALLOCATED 8.31.128.0/24 6939 Hurricane Electric

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
100.100.0.0/24 4847 China Networks Inter-Exchange

Complete listing at http://thyme.rand.apnic.net/au/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 36086 Broad Communications Technolo
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c
23.91.160.0/22 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:254
/13:474 /14:927 /15:1635 /16:12862 /17:6756 /18:11171
/19:23034 /20:32678 /21:35521 /22:49716 /23:43631 /24:248176
/25:44 /26:34 /27:53 /28:37 /29:28 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2010 2056 MegaPath Corporation
36998 1829 1864 Sudanese Mobile Telephone (ZA
6389 1707 3054 BellSouth.net Inc.
8402 1588 1921 OJSC "Vimpelcom"
22773 1458 2195 Cox Communications, Inc.
30036 1231 1385 Mediacom Communications Corp
11492 1192 1232 Cable One
1785 1086 2038 PaeTec Communications, Inc.
6983 1034 1293 ITC^Deltacom
22561 972 1249 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:895 2:851 3:3 4:17 5:1023 6:21
8:614 12:1900 13:3 14:874 15:11 16:3
17:18 18:19 20:21 23:522 24:1741 27:1640
31:1497 32:45 33:2 34:5 36:82 37:1909
38:912 39:4 40:181 41:3247 42:261 44:13
46:2014 47:9 49:691 50:834 52:12 54:42
55:5 56:4 57:26 58:1105 59:575 60:374
61:1451 62:1229 63:1987 64:4352 65:2342 66:4157
67:2110 68:1106 69:3289 70:874 71:489 72:2039
74:2558 75:328 76:307 77:1165 78:1049 79:659
80:1299 81:1035 82:652 83:630 84:582 85:1253
86:381 87:1013 88:563 89:1558 90:149 91:5651
92:619 93:1605 94:2032 95:1604 96:512 97:345
98:1049 99:40 100:31 101:382 103:3541 105:527
106:142 107:215 108:534 109:1932 110:963 111:1111
112:583 113:810 114:746 115:1039 116:1002 117:813
118:1169 119:1269 120:391 121:750 122:1836 123:1261
124:1325 125:1466 128:645 129:219 130:315 131:657
132:358 133:157 134:546 135:67 136:278 137:265
138:350 139:174 140:170 141:331 142:530 143:396
144:488 145:88 146:519 147:401 148:711 149:367
150:135 151:587 152:409 153:206 154:51 155:459
156:286 157:370 158:278 159:688 160:360 161:456
162:835 163:205 164:630 165:580 166:259 167:634
168:1040 169:124 170:1119 171:182 172:27 173:1594
174:687 175:508 176:1299 177:2442 178:1956 179:206
180:1609 181:823 182:1345 183:466 184:668 185:1005
186:2651 187:1479 188:1862 189:1245 190:7091 192:7046
193:5417 194:4044 195:3363 196:1336 197:1063 198:4707
199:5469 200:6061 201:2459 202:8867 203:8930 204:4472
205:2630 206:2761 207:2767 208:3977 209:3645 210:2934
211:1563 212:2148 213:1986 214:894 215:91 216:5390
217:1684 218:626 219:318 220:1277 221:569 222:327
223:541

End of report
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