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 22, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Sat 23 Nov, 2013

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

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

BGP routing table entries examined: 468762
Prefixes after maximum aggregation: 188249
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234224
Total ASes present in the Internet Routing Table: 45419
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35466
Origin ASes announcing only one prefix: 16312
Transit ASes present in the Internet Routing Table: 5774
Transit-only ASes present in the Internet Routing Table: 148
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 29
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1058
Unregistered ASNs in the Routing Table: 291
Number of 32-bit ASNs allocated by the RIRs: 5386
Number of 32-bit ASNs visible in the Routing Table: 4179
Prefixes from 32-bit ASNs in the Routing Table: 13084
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1163
Number of addresses announced to Internet: 2654376956
Equivalent to 158 /8s, 54 /16s and 147 /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: 95.3
Total number of prefixes smaller than registry allocations: 162845

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

Prefixes being announced by APNIC Region ASes: 109845
Total APNIC prefixes after maximum aggregation: 33370
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112085
Unique aggregates announced from the APNIC address blocks: 47546
APNIC Region origin ASes present in the Internet Routing Table: 4846
APNIC Prefixes per ASN: 23.13
APNIC Region origin ASes announcing only one prefix: 1231
APNIC Region transit ASes present in the Internet Routing Table: 821
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: 756
Number of APNIC addresses announced to Internet: 728574972
Equivalent to 43 /8s, 109 /16s and 43 /24s
Percentage of available APNIC address space announced: 85.1

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: 161694
Total ARIN prefixes after maximum aggregation: 81299
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162592
Unique aggregates announced from the ARIN address blocks: 75849
ARIN Region origin ASes present in the Internet Routing Table: 15898
ARIN Prefixes per ASN: 10.23
ARIN Region origin ASes announcing only one prefix: 6012
ARIN Region transit ASes present in the Internet Routing Table: 1619
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 38
Number of ARIN addresses announced to Internet: 1073725184
Equivalent to 63 /8s, 255 /16s and 191 /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: 119015
Total RIPE prefixes after maximum aggregation: 60961
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122771
Unique aggregates announced from the RIPE address blocks: 78770
RIPE Region origin ASes present in the Internet Routing Table: 17508
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8303
RIPE Region transit ASes present in the Internet Routing Table: 2761
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2485
Number of RIPE addresses announced to Internet: 656218368
Equivalent to 39 /8s, 29 /16s and 25 /24s
Percentage of available RIPE address space announced: 95.4

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: 52622
Total LACNIC prefixes after maximum aggregation: 9830
LACNIC Deaggregation factor: 5.35
Prefixes being announced from the LACNIC address blocks: 57774
Unique aggregates announced from the LACNIC address blocks: 27083
LACNIC Region origin ASes present in the Internet Routing Table: 2039
LACNIC Prefixes per ASN: 28.33
LACNIC Region origin ASes announcing only one prefix: 558
LACNIC Region transit ASes present in the Internet Routing Table: 381
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 894
Number of LACNIC addresses announced to Internet: 143570688
Equivalent to 8 /8s, 142 /16s and 183 /24s
Percentage of available LACNIC address space announced: 85.6

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: 11743
Total AfriNIC prefixes after maximum aggregation: 2598
AfriNIC Deaggregation factor: 4.52
Prefixes being announced from the AfriNIC address blocks: 12377
Unique aggregates announced from the AfriNIC address blocks: 4041
AfriNIC Region origin ASes present in the Internet Routing Table: 689
AfriNIC Prefixes per ASN: 17.96
AfriNIC Region origin ASes announcing only one prefix: 208
AfriNIC Region transit ASes present in the Internet Routing Table: 132
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: 48320256
Equivalent to 2 /8s, 225 /16s and 79 /24s
Percentage of available AfriNIC address space announced: 48.0

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 2713 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2138 11550 641 Korea Telecom (KIX)
7545 2108 319 111 TPG Internet Pty Ltd
4755 1792 392 190 TATA Communications formerly
9829 1544 1245 45 BSNL National Internet Backbo
9583 1246 95 509 Sify Limited
9498 1210 309 73 BHARTI Airtel Ltd.
7552 1163 1080 13 Vietel Corporation
24560 1095 380 166 Bharti Airtel Ltd., Telemedia
4808 1040 1945 301 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 3042 3688 53 BellSouth.net Inc.
22773 2211 2941 142 Cox Communications, Inc.
1785 2058 686 145 PaeTec Communications, Inc.
18566 2054 379 178 MegaPath Corporation
20115 1680 1654 597 Charter Communications
4323 1651 1114 420 Time Warner Telecom
701 1504 11162 781 MCI Communications Services,
30036 1388 313 578 Mediacom Communications Corp
7018 1330 17778 869 AT&T WorldNet Services
6983 1295 758 581 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 1892 544 16 OJSC "Vimpelcom"
34984 1367 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1168 439 875 Akamai Technologies European
31148 1009 45 19 FreeNet ISP
13188 894 99 48 TOV "Bank-Inform"
6849 869 363 39 JSC UKRTELECOM,
8551 786 370 41 Bezeq International
6830 777 2328 429 UPC Distribution Services
12479 679 797 57 Uni2 Autonomous System
35228 546 246 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 3342 1785 108 NET Servicos de Comunicao S.A
10620 2670 433 213 Telmex Colombia S.A.
7303 1729 1151 232 Telecom Argentina Stet-France
18881 1647 908 20 Global Village Telecom
8151 1344 2847 412 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 822 94 92 Telconet S.A
6147 790 373 27 Telefonica Del Peru
6503 789 434 63 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A

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 888 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 411 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
29571 226 17 13 Ci Telecom Autonomous system
15706 221 32 6 Sudatel Internet Exchange Aut
36992 219 501 29 Etisalat MISR
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 3342 1785 108 NET Servicos de Comunicao S.A
6389 3042 3688 53 BellSouth.net Inc.
17974 2713 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2670 433 213 Telmex Colombia S.A.
22773 2211 2941 142 Cox Communications, Inc.
4766 2138 11550 641 Korea Telecom (KIX)
7545 2108 319 111 TPG Internet Pty Ltd
1785 2058 686 145 PaeTec Communications, Inc.
18566 2054 379 178 MegaPath Corporation
8402 1892 544 16 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 3042 2989 BellSouth.net Inc.
17974 2713 2625 PT TELEKOMUNIKASI INDONESIA
10620 2670 2457 Telmex Colombia S.A.
22773 2211 2069 Cox Communications, Inc.
7545 2108 1997 TPG Internet Pty Ltd
1785 2058 1913 PaeTec Communications, Inc.
18566 2054 1876 MegaPath Corporation
8402 1892 1876 OJSC "Vimpelcom"
36998 1864 1859 Sudanese Mobile Telephone (ZA
18881 1647 1627 Global Village Telecom

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.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom

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.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.21.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 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 /12:253
/13:474 /14:928 /15:1632 /16:12839 /17:6772 /18:11166
/19:23015 /20:32844 /21:35630 /22:49884 /23:43729 /24:249221
/25:44 /26:33 /27:51 /28:37 /29:29 /30:31
/31:0 /32:0

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

ASN No of nets Total ann. Description
18566 2008 2054 MegaPath Corporation
36998 1829 1864 Sudanese Mobile Telephone (ZA
6389 1700 3042 BellSouth.net Inc.
8402 1565 1892 OJSC "Vimpelcom"
22773 1466 2211 Cox Communications, Inc.
30036 1232 1388 Mediacom Communications Corp
11492 1195 1233 Cable One
1785 1095 2058 PaeTec Communications, Inc.
6983 1035 1295 ITC^Deltacom
22561 964 1241 Digital Teleport, Inc

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

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

1:898 2:819 3:3 4:17 5:1027 6:21
8:606 12:1879 13:3 14:880 15:11 16:3
17:18 18:19 20:21 23:582 24:1756 27:1637
31:1503 32:45 33:2 34:5 36:86 37:1938
38:910 39:5 40:182 41:3239 42:288 44:14
46:2023 47:10 49:692 50:848 52:12 54:44
55:5 56:4 57:26 58:1109 59:574 60:367
61:1461 62:1237 63:1985 64:4319 65:2345 66:4160
67:2114 68:1092 69:3288 70:889 71:487 72:2011
74:2573 75:325 76:303 77:1157 78:1059 79:661
80:1268 81:1049 82:649 83:682 84:588 85:1258
86:375 87:1021 88:557 89:1562 90:152 91:5687
92:615 93:1610 94:2074 95:1554 96:515 97:348
98:1040 99:41 100:32 101:405 103:3669 105:527
106:141 107:218 108:534 109:1980 110:975 111:1115
112:589 113:812 114:746 115:1051 116:998 117:807
118:1184 119:1272 120:365 121:751 122:1836 123:1263
124:1359 125:1469 128:640 129:219 130:337 131:658
132:355 133:158 134:293 135:72 136:283 137:244
138:352 139:295 140:173 141:330 142:535 143:401
144:492 145:90 146:521 147:403 148:732 149:361
150:154 151:665 152:412 153:205 154:54 155:501
156:293 157:370 158:282 159:695 160:361 161:456
162:866 163:204 164:617 165:586 166:263 167:634
168:1036 169:124 170:1126 171:185 172:27 173:1591
174:694 175:519 176:1313 177:2478 178:1862 179:305
180:1618 181:861 182:1385 183:469 184:630 185:1057
186:2649 187:1484 188:1866 189:1262 190:7288 192:7006
193:5425 194:4022 195:3367 196:1337 197:1041 198:4715
199:5455 200:6037 201:2524 202:8912 203:8949 204:4478
205:2634 206:2745 207:2774 208:3983 209:3645 210:2971
211:1572 212:2150 213:1994 214:898 215:91 216:5398
217:1693 218:626 219:318 220:1274 221:585 222:326
223:545

End of report
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